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• array-memoize library: Memoization combinators using arrays for finite sub-domains of functions
• PortFusion program: high-performance distributed reverse / forward proxy & tunneling for TCP
• reflex-ghci library, program and test: A GHCi widget library for use in reflex applications
• wxSimpleCanvas library: Simple zoomable canvas for wxHaskell

"Distributed Computing"

• polling-cache library and test: Cache infrequently updated data for simpler distributed systems.

-

• tslib library and tests: -

.NET

• clr-bindings library and test: Glue between clr-host and clr-typed
• clr-host library and test: Hosting the Common Language Runtime
• clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
• clr-marshal library: Marshaling for the clr
• clr-typed library and test: A strongly typed Haskell interface to the CLR type system
• clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug
• hs-dotnet library: Pragmatic .NET interop for Haskell
• language-cil library: Manipulating Common Intermediate Language AST
• Salsa library: A .NET Bridge for Haskell

Accelerate

• accelerate library and tests: An embedded language for accelerated array processing
• accelerate-bignum library, tests and benchmark: Fixed-length large integer arithmetic for Accelerate
• accelerate-blas library, tests and benchmarks: Numeric Linear Algebra in Accelerate
• accelerate-examples library and programs: Examples using the Accelerate library
• accelerate-fft library and tests: FFT using the Accelerate library
• accelerate-io library: Convert between Accelerate arrays and raw pointers
• accelerate-io-array library and test: Convert between Accelerate and array
• accelerate-io-bmp library: Convert between Accelerate arrays and BMP images
• accelerate-io-bytestring library: Convert between Accelerate and ByteString
• accelerate-io-cereal library: Binary serialisation of Accelerate arrays using cereal
• accelerate-io-JuicyPixels library: Convert between Accelerate arrays and JuicyPixels images
• accelerate-io-repa library: Convert between Accelerate and Repa arrays
• accelerate-io-serialise library: Binary serialisation of Accelerate arrays using serialise
• accelerate-io-vector library and test: Convert between Accelerate and vector
• accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
• accelerate-llvm library: Accelerate backend component generating LLVM IR
• accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
• accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
• colour-accelerate library: Working with colours in Accelerate
• containers-accelerate library and test: Hashing-based container types
• FAI library and test: Haskell Foreign Accelerate Interface
• gloss-accelerate library: Extras to interface Gloss and Accelerate
• gloss-raster-accelerate library: Parallel rendering of raster images using Accelerate
• hashable-accelerate library: A class for types which can be converted into a hash value
• lens-accelerate library: Instances to mix lens with Accelerate
• linear-accelerate library and test: Lifting linear vector spaces into Accelerate
• mwc-random-accelerate library and benchmark: Generate Accelerate arrays filled with high quality pseudorandom numbers

Accessibility

• bitspeak program: Proof-of-concept tool for writing using binary choices.
• festival library: C bindings plus conveniences for the festival tts system.
• hsay program: (ab)Use Google Translate as a speech synthesiser
• workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

ACME

• ACME library: Essential features
• acme-all-monad library: A monad which is powerful enough to interpret any action
• acme-box library, program and test: A full featured empty project
• acme-cadre library: car, cdr and more
• acme-circular-containers library and test: Spineless containers which are fast to read but inefficient to update
• acme-cofunctor library: A Cofunctor is a structure from category theory dual to Functor
• acme-colosson library: Determines whether it is numberwang.
• acme-cuteboy library and program: Maybe gives you a cute boy
• acme-cutegirl library and program: Maybe gives you a cute girl
• acme-default library: A class for types with a distinguished aesthetically pleasing value
• acme-dont library and test: A "don't" construct
• acme-everything library: Install everything.
• acme-flipping-tables library: Stop execution with rage.
• acme-functors library: The best applicative functors.
• acme-grawlix library: More readable names for commonly used symbols
• acme-hq9plus library: An embedded DSL for the HQ9+ programming language
• acme-inator library and program: Evil inventions in the Tri-State area
• acme-io library: The only true way to do IO in Haskell!
• acme-lolcat library: LOLSPEAK translator
• acme-lookofdisapproval library: Express your disapproval
• acme-memorandom library: Memoized random number generation
• acme-microwave library: The eighth wonder of the world, kitchen math!
• acme-miscorder library: Miscellaneous newtypes for orderings of discutable use.
• acme-missiles library: Cause serious international side effects.
• acme-mutable-package library: A mutable package.
• acme-now library: An interface to the philosophical and metaphysical "now"
• acme-numbersystem library: Define the less than and add and subtract for nats
• acme-omitted library and test: A name for omitted definitions
• acme-one library: The identity element of package dependencies
• acme-php library: The flexibility of Haskell and the safety of PHP
• acme-pointful-numbers library: Make more than one point in numeric literals
• acme-realworld library: Primitives for manipulating the state of the universe
• acme-safe library: Safe versions of some infamous haskell functions such as fromJust
• acme-schoenfinkel library and test: Proper names for curry and uncurry
• acme-smuggler library and test: Smuggle arbitrary values in arbitrary types
• acme-strfry library: A binding to the glibc strfry function.
• acme-stringly-typed library: Stringly Typed Programming
• acme-strtok library: A Haskell port of the C/PHP strtok function
• acme-timemachine library: An easy way to perform and unperform IO and other stateful actions.
• acme-year library, test and benchmark: Get the current year
• acme-zalgo library: ...
• acme-zero library: The absorbing element of package dependencies
• apply-unordered library and test: Apply a function to an argument specified by a type level Nat
• apply-unordered-mono library and test: Apply functions to arguments in an unordered type-directed fashion
• ascii-cows library: A collection of ASCII cows. Moo.
• empty library: Ceci n'est pas une package
• hero-club-five-tenets library and program: Think back of the five tenets of hero club
• icfpc2020-galaxy library: A strange message received at the Pegovka observatory
• lacroix library: fizzy n dizzy
• monadacme library: The Acme and AcmeT monads
• plumbers library: Pointless plumbing combinators
• redesigned-carnival library: Package for dependency confusion
• roller library and program: Playing with applicatives and dice!
• typesafe-precure library and test: Type-safe transformations and purifications of PreCures (Japanese Battle Heroine)
• yes-precure5-command library, program and test: Extended yes command to reproduce phrases in Yes! Precure 5.

Actors

• theatre library: Minimalistic actor library
• theatre-dev library and test: Minimalistic actor library experiments

Adjunctions

• adjunction library, test and benchmark: See README for more info
• adjunctions library and test: Adjunctions and representable functors

ADSB

• stratux library: A library for stratux
• stratux-demo library and program: A demonstration of the stratux library.
• stratux-http library: A library for using HTTP with stratux
• stratux-types library: A library for reading JSON output from stratux
• stratux-websockets library: A library for using websockets with stratux

Aerospace

• ogma-cli program and test: Ogma: Helper tool to interoperate between Copilot and other languages.
• ogma-core library and test: Ogma: Helper tool to interoperate between Copilot and other languages.
• ogma-extra library and test: Ogma: Helper tool to interoperate between Copilot and other languages.
• ogma-language-c library and test: Ogma: Runtime Monitor translator: C Language Frontend
• ogma-language-cocospec library and test: Ogma: Runtime Monitor translator: CoCoSpec Language Frontend
• ogma-language-copilot library: Ogma: Runtime Monitor translator: Copilot Language Endpoints
• ogma-language-fret-cs library and test: Ogma: Runtime Monitor translator: FRET Component Specification Frontend
• ogma-language-fret-reqs library and test: Ogma: Runtime Monitor translator: FRET Component Requirement DB Frontend
• ogma-language-jsonspec library: Ogma: Runtime Monitor translator: JSON Frontend
• ogma-language-smv library and test: Ogma: Runtime Monitor translator: SMV Language Frontend
• ogma-spec library: Ogma: Runtime Monitor translator: JSON Frontend

Aeson

• aeson-extra library and test: Extra goodies for aeson
• aeson-helper library: Aeson helper func
• aeson-result library: API Result for aeson
• aeson-with library: withXField combinators for aeson

Agda

• agda2train library and program: Agda backend to generate training data for machine learning purposes.

AI

• attoparsec-arff library: An ARFF file parser using Attoparsec
• basic-gps library: Basic implementation of General Problem Solver algorithm
• bpann library: backpropagation neuronal network
• CarneadesDSL library: An implementation and DSL for the Carneades argumentation model.
• CarneadesIntoDung library and program: A translation from the Carneades argumentation model into Dung's AFs.
• conala-dataset library and test: bindings to the CoNaLa dataset
• creatur library and test: Framework for artificial life experiments.
• csp library and test: Discrete constraint satisfaction problem (CSP) solver.
• CV library: OpenCV based machine vision library
• cv-combinators library and program: Functional Combinators for Computer Vision
• Dung library and program: An implementation of the Dung argumentation frameworks.
• Etage library: A general data-flow framework
• fast-downward library: Solve classical planning problems (STRIPS/SAS+) using Haskell & Fast Downward.
• fei-base library and program: FFI to MXNet
• fei-cocoapi library and program: Cocodataset with cocoapi
• fei-dataiter library, program and tests: mxnet dataiters
• fei-datasets library and programs: Some datasets
• fei-examples programs: fei examples
• fei-modelzoo library: A collection of standard models
• fei-nn library: Train a neural network with MXNet in Haskell.
• finito library and tests: Constraint Solver for Finite Domains
• GA library: Genetic algorithm library
• genprog library: Genetic programming library
• grenade library, test and benchmarks: Practical Deep Learning in Haskell
• HasGP library: A Haskell library for inference using Gaussian processes
• HaskellNN library: High Performance Neural Network in Haskell
• hasktorch-codegen library, program and test: Code generation tools for Hasktorch
• hasktorch-ffi-tests library: Testing library for Hasktorch's FFI bindings
• hasktorch-ffi-th library and test: Bindings to Torch
• hasktorch-ffi-thc library and test: Bindings to Cutorch
• hasktorch-indef library and test: Core Hasktorch abstractions wrapping FFI bindings
• hasktorch-signatures library and programs: Backpack signatures for Tensor operations
• hasktorch-signatures-partial library: Functions to partially satisfy tensor signatures
• hasktorch-signatures-support library: Signatures for support tensors in hasktorch
• hasktorch-signatures-types library: Core types for Hasktorch backpack signatures
• hasktorch-types-th library: C-types for Torch
• hasktorch-types-thc library: C-types for Cutorch
• hasktorch-zoo library: Neural architectures in hasktorch
• HaVSA library and program: An implementation of the Version Space Algebra learning framework.
• heukarya library: A genetic programming based on tree structure.
• hfann library and program: Haskell binding to the FANN library
• hgalib library: Haskell Genetic Algorithm Library
• hmep library, programs and test: HMEP Multi Expression Programming – a genetic programming variant
• hnn library: A reasonably fast and simple neural network library
• HOpenCV library and program: A binding for the OpenCV computer vision library
• hopfield library, programs and test: Hopfield Networks, Boltzmann Machines and Clusters
• hpylos program: AI of Pylos game with GLUT interface.
• HSGEP library and programs: Gene Expression Programming evolutionary algorithm in Haskell
• huff library and program: A fast-foward-based planner
• hVOIDP library and program: Optimal variable selection in chain graphical model.
• ihp-openai library and test: Call GPT4 from your Haskell apps
• instinct library: Fast artifical neural networks
• keera-posture program and tests: Get notifications when your sitting posture is inappropriate.
• liblinear-enumerator library: liblinear iteratee.
• markov-processes library and test: Hidden Markov processes.
• mines program: Minesweeper simulation using neural networks
• moo library and test: Genetic algorithm library
• mxnet-dataiter library and tests: mxnet dataiters
• mxnet-nn library and program: Train a neural network with MXNet in Haskell.
• neet library: A NEAT library for Haskell
• neural-network-base library: Yet Another High Performance and Extendable Neural Network in Haskell
• neural-network-blashs library and test: Yet Another High Performance and Extendable Neural Network in Haskell
• neural-network-hmatrix library: Yet Another High Performance and Extendable Neural Network in Haskell
• nn library and test: A tiny neural network
• nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
• opencv library, tests and benchmark: Haskell binding to OpenCV-3.x
• opencv-extra library and test: Haskell binding to OpenCV-3.x extra modules
• opencv-raw library: Raw Haskell bindings to OpenCV >= 2.0
• Probnet library: Geometric Extrapolation of Integer Sequences with error prediction
• sandlib library: SAND data serialization and manipulation library
• simple-genetic-algorithm library and program: Simple parallel genetic algorithm implementation
• simple-genetic-algorithm-mr library and program: Simple parallel genetic algorithm implementation
• simple-neural-networks library and programs: Simple parallel neural networks implementation
• SimpleEA library: Simple evolutionary algorithm framework.
• smarties library, programs and test: Haskell Behavior Tree Library
• SoccerFun library and program: Football simulation framework for teaching functional programming
• SoccerFunGL library and programs: OpenGL UI for the SoccerFun framework
• svm library: A support vector machine written in Haskell
• svm-simple library: Medium level, simplified, bindings to libsvm
• tensor-safe library and program: Create valid deep neural network architectures
• typechain library and program: An implementation of LangChain in Haskell

Algebra

• acts library: Semigroup actions and torsors.
• agum library and program: Unification and Matching in an Abelian Group
• algebra library: Constructive abstract algebra
• algebraic library: General linear algebra structures.
• algebraic-graphs library and test: A library for algebraic graph construction and transformation
• allen library, program, test and benchmark: A monadic way of calculating relations between intervals of time.
• cayley-dickson library and test: Complex numbers, quaternions, octonions, sedenions, etc.
• cl3 library, test and benchmarks: Clifford Algebra of three dimensional space.
• cl3-hmatrix-interface library: Interface to/from Cl3 and HMatrix.
• cl3-linear-interface library: Interface to/from Cl3 and Linear.
• cl3-posit library and test: Clifford Algebra of three dimensional space, implemented with Posit numbers.
• clif library, test and benchmark: A Clifford algebra number type for Haskell
• clipper library: Haskell API to clipper (2d polygon union/intersection/xor/clipping API)
• cmu library and program: Unification in a Commutative Monoid
• commutative-semigroups library: Commutative semigroups
• constructive-algebra library: A library of constructive algebra.
• csa library and test: Connection-set algebra (CSA) library
• eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
• fadno-braids library: Braid representations in Haskell
• fcf-graphs library and test: Type-level version of algebraic-graphs.
• finite-field library and test: Finite Fields
• free-algebras library and test: Free algebras
• free-category library, test and benchmark: efficient data types for free categories and arrows
• gasp library: A framework of algebraic classes
• ghc-bignum : GHC BigNum library
• group-theory library: The theory of groups
• groups library: Groups
• groups-generic library: Generically derive Group instances.
• haskell-eigen-util library and test: Some utility functions for haskell-eigen library
• hspray library, test and benchmark: Multivariate polynomials and fractions of multivariate polynomials.
• integer-gmp library: Integer library based on GMP
• interval-algebra library, program and tests: An implementation of Allen's interval algebra for temporal logic
• interval-patterns library and test: Intervals, and monoids thereof
• involutive-semigroups library: Semigroups with involution.
• jackpolynomials library, test and benchmark: Jack, zonal, Schur, and other symmetric polynomials
• linear library and tests: Linear Algebra
• linear-accelerate library and test: Lifting linear vector spaces into Accelerate
• linear-grammar library and test: A simple grammar for building linear equations and inclusive inequalities.
• linear-tests library and test: Linear Algebra
• magma library and test: magma is an algebraic structure.
• metamorphic library: metamorphisms: ana . cata or understanding folds and unfolds
• monoid-absorbing library: A library for (left, right) zero monoids and backtracking with cut
• monoid-subclasses library and test: Subclasses of Monoid
• mpolynomials library: Simple multivariate polynomials.
• multi-instance library and test: Typeclasses augmented with a phantom type parameter
• nats library: Natural numbers
• oalg-abg library and test: Finitely generated abelian groups.
• oalg-base library and test: ...
• partial-semigroup library and tests: A partial binary associative operator
• partial-semigroup-hedgehog library: Property testing for partial semigroups using Hedgehog
• partial-semigroup-test library: Testing utilities for the partial-semigroup package
• semigroups library: Anything that associates
• semigroups-actions library: Semigroups actions
• semilattices library and test: Semilattices
• semirings library: two monoids as one, in holy haskimony
• sign library and test: Arithmetic over signs and sets of signs
• simplex-basic library and test: Very basic simplex implementation.
• sparse-tensor library and test: typesafe tensor algebra library
• subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
• tropical-geometry library, program, test and benchmark: A Tropical Geometry package for Haskell
• unification-fd library: Simple generic unification algorithms.
• yap library: yet another prelude - a simplistic refactoring with algebraic classes

Algebra Uniform

• uniform-algebras library: Pointless functions and a simplistic zero and monoid

Algorithm

• grfn library, program, test and benchmark: Uniformly-random pre-factored numbers (Kalai)
• jps library: Jump point search for Haskell
• kmeans-par library, test and benchmark: Sequential and parallel implementations of Lloyd's algorithm.
• longshot library, program and test: Fast Brute-force search using parallelism
• mealy library and test: Mealy machines for processing time-series and ordered data.
• pathfinding library: pathfinding in grid and graphs
• Ritt-Wu library, program, test and benchmark: Parallel implementation of Ritt-Wu's algorithm.
• search-algorithms library, tests and benchmark: Common graph search algorithms
• typed-session-state-algorithm library and test: Automatically generate status for typed-session.

Algorithm Visualization

• provenience library and program: Computations that automatically track data dependencies
• treeviz library, program and test: Visualization of computation decomposition trees.

Algorithmic Music Composition

• AlgoRhythm library, program and test: Algorithmic music composition

Algorithms

• Adaptive library and program: Library for incremental computing.
• adp-multi library, programs and test: ADP for multiple context-free languages
• adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
• ADPfusion library, programs and test: Efficient, high-level dynamic programming.
• ADPfusionSet library and test: Dynamic programming for Set data structures.
• aeson-diff library, programs and tests: Extract and apply patches to JSON documents.
• AlanDeniseEricLauren library, test and benchmark: Find the minimal subset/submap satisfying some property.
• algebraic-graphs library and test: A library for algebraic graph construction and transformation
• AlignmentAlgorithms library: Collection of alignment algorithms
• arithmoi library, test and benchmarks: Efficient basic number-theoretic functions.
• assignment library, test and benchmarks: A solution to the assignment problem
• batching library and test: An Applicative Functor deferring actions to run in a batch later.
• binary-search library and tests: Binary and exponential searches
• Binpack library: Common bin-packing heuristics.
• bordacount library and test: Implementation of the Borda count election method.
• build library and test: Build Systems à la Carte
• ChibiHash library, program and test: a simple and fast 64-bit hash function
• cmaes library and test: CMA-ES wrapper in Haskell
• collate library and test: An Applicative Functor for extracting parts of a stream of values
• concorde library: Simple interface to the Concorde solver for the Traveling Salesperson Problem
• concurrent-sa library: Concurrent simulated annealing system.
• conduit-aeson library and tests: Short description
• cubicspline library: Natural cubic spline interpolation.
• DecisionTree library: A very simple implementation of decision trees for discrete attributes.
• dgim library and test: Implementation of DGIM algorithm
• Diff library and test: Diff algorithm in pure Haskell
• DifferentialEvolution library: Global optimization using Differential Evolution
• DimensionalHash library: An n-dimensional hash using Morton numbers.
• dom-lt library, test and benchmark: The Lengauer-Tarjan graph dominators algorithm.
• DP library: Pragmatic framework for dynamic programming
• dtw library and test: (Fast) Dynamic Time Warping
• edit-distance library, test and benchmark: Levenshtein and restricted Damerau-Levenshtein edit distances
• edit-distance-linear library, program, test and benchmark: Efficient implementation of the Levenshtein edit distance in linear memory.
• edit-distance-vector library and test: Calculate edit distances and edit scripts between vectors.
• eigen library and tests: Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, ...
• epanet-haskell library: Haskell binding for EPANET
• equivalence library and test: Maintaining an equivalence relation implemented as union-find using STT.
• ersatz library, programs and tests: A monad for expressing SAT or QSAT problems using observable sharing.
• ersatz-toysat library and programs: toysat driver as backend for ersatz
• exact-cover library, program and test: Efficient exact cover solver.
• fast-arithmetic library, test and benchmark: Fast functions on integers.
• fibonacci library: Fast computation of Fibonacci numbers.
• funsat library and program: A modern DPLL-style SAT solver
• GA library: Genetic algorithm library
• garsia-wachs library: A Functional Implementation of the Garsia-Wachs Algorithm
• genprog library: Genetic programming library
• graph-generators library, program and test: Functions for generating structured or random FGL graphs
• Graphalyze library: Graph-Theoretic Analysis library.
• graphs library: A simple monadic graph library
• GraphSCC library: Tarjan's algorithm for computing the strongly connected components of a graph.
• gutenberg-fibonaccis library: The first 1001 Fibonacci numbers, retrieved from the Gutenberg Project.
• heapsort library and programs: Heapsort of MArrays as a demo of imperative programming
• hgal library and test: library for computation automorphism group and canonical labelling of a graph
• hlcm library and programs: Fast algorithm for mining closed frequent itemsets
• HMM library: A hidden markov model library
• hmm library: A hidden markov model library
• hps-kmeans library: A nice implementation of the k-Means algorithm.
• hqcsim library and program: A library for simulating quantum circuits.
• htn library and test: resolver using htn algorithm
• Hungarian-Munkres library, test and benchmark: A Linear Sum Assignment Problem (LSAP) solver
• hypertypes library, test and benchmark: Typed ASTs
• imj-animation library and test: Animation Framework
• imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
• incremental-sat-solver library: Simple, Incremental SAT Solving as a Library
• infinite-search library: Exhaustively searchable infinite sets.
• integer-logarithms library and test: Integer logarithms.
• integer-roots library and tests: Integer roots and perfect powers
• iproute library and test: IP Routing Table
• kmeans library: K-means clustering algorithm
• KMP library and test: Knuth–Morris–Pratt string searching algorithm
• kmp-dfa library and test: KMP algorithm implementation, based on Deterministic Finite State Automata
• lca library: O(log n) persistent online lowest common ancestor search without preprocessing
• learning-hmm library: Yet another library for hidden Markov models
• libgraph library: Store and manipulate data in a graph.
• LinearSplit library: Partition the sequence of items to the subsequences in the order given
• ListTree library: Trees and monadic trees expressed as monadic lists where the underlying monad is a list
• majority library: Boyer-Moore Majority Vote Algorithm
• markov-chain library: Markov Chains for generating random sequences with a user definable behaviour.
• maximal-cliques library: Enumerate all maximal cliques of a graph.
• mdp library, programs and test: Tools for solving Markov Decision Processes.
• mempack library, test and benchmark: Short description
• MIP library and test: Library for using Mixed Integer Programming (MIP)
• MIP-glpk library and test: A GLPK backend to the MIP library.
• moo library and test: Genetic algorithm library
• Munkres library: Munkres' assignment algorithm (hungarian method)
• Munkres-simple library: Simple and typesafe layer over the Munkres package.
• natural-sort library: User-friendly text collation
• nonlinear-optimization-ad library and program: Wrapper of nonlinear-optimization package for using with AD package
• nonlinear-optimization-backprop library and program: Wrapper of nonlinear-optimization package for using with backprop package
• number-wall library, test and benchmark: Create number walls and save them as images
• Numbers library: An assortment of number theoretic functions
• numeric-optimization library, program and test: Unified interface to various numerical optimization algorithms
• numeric-optimization-ad library, program and test: Wrapper of numeric-optimization package for using with AD package
• numeric-optimization-backprop library, program and test: Wrapper of numeric-optimization package for using with backprop package
• outsort program: External sorting package based on Conduit
• palindromes library and program: Finding palindromes in strings
• patience library: Patience diff and longest increasing subsequence
• pell library and test: Package to solve the Generalized Pell Equation.
• pqueue-mtl library: Fully encapsulated monad transformers with queuelike functionality.
• presburger library and test: A decision procedure for quantifier-free linear arithmetic.
• primal library, tests and benchmark: Primeval world of Haskell.
• primal-memory library, test and benchmarks: Unified interface for memory managemenet.
• primes library: Efficient, purely functional generation of prime numbers
• primes-type library, test and benchmark: Type-safe prime numbers.
• primesieve library and programs: FFI bindings for the primesieve library.
• PropLogic library and program: Propositional Logic
• pure-shuffle library and test
• qchas library, program and test: A library for implementing Quantum Algorithms
• quadratic-irrational library and tests: An implementation of quadratic irrationals
• queuelike library: A library of queuelike data structures, both functional and stateful.
• rangemin library: Linear range-min algorithms.
• raz library, test and benchmarks: Random Access Zippers
• rspp library: A Rational Street Performer Protocol solver
• sat programs: CNF SATisfier
• sat-micro-hs program: A minimal SAT solver
• satchmo-backends library: driver for external satchmo backends
• satchmo-examples programs: examples that show how to use satchmo
• satchmo-funsat library: funsat driver as backend for satchmo
• satchmo-toysat library: toysat driver as backend for satchmo
• seqalign library: Sequence Alignment
• set-cover library, programs, test and benchmark: Solve exact set cover problems like Sudoku, 8 Queens, Soma Cube, Tetris Cube
• smartGroup library: group strings or bytestrings by words in common
• spacefill library and test: Generators for space-filling curves.
• stable-marriage library and test: algorithms around stable marriage
• strips library and test: resolver using strips algorithm
• svm-simple library: Medium level, simplified, bindings to libsvm
• teams library: Graphical modeling tools for sequential teams
• text-metrics library, test and benchmarks: Calculate various string metrics efficiently
• toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
• TrieMap library: Automatic type inference of generalized tries with Template Haskell.
• tsne library, programs and test: t-SNE
• twentyseven library, program and test: Rubik's cube solver
• unification-fd library: Simple generic unification algorithms.
• union-find library: Efficient union and equivalence testing of sets.
• union-find-array library: union find data structure
• vector-quicksort library, test and benchmark: Fast and flexible quicksort implementation for mutable vectors
• wordsearch library and program: A word search solver library and executable
• yices-easy library: Simple interface to the Yices SMT (SAT modulo theories) solver.

Amazon

• aws-sns-verify library and test: Parse and verify AWS SNS messages

Amqp

• amqp-streamly library and test: A simple streamly wrapper for amqp

Anatomy

• teeth library: Dental data types

Animation

• cal3d library: Haskell binding to the Cal3D animation library.
• cal3d-examples programs: Examples for the Cal3d animation library.
• cal3d-opengl library: OpenGL rendering for the Cal3D animation library
• imj-animation library and test: Animation Framework
• imj-base library, program and test: Game engine with geometry, easing, animated text, delta rendering.
• imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.

ANSI

• colourista library and test: Convenient interface for printing colourful messages

AOP

• effective-aspects library and test: A monadic embedding of aspect oriented programming
• effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

API

• aeson-result library: API Result for aeson
• alerta library: Bindings to the alerta REST API
• approveapi library and test: ApproveAPI Haskell Client
• arxiv library: A client for the Arxiv API
• bighugethesaurus library: API wrapper for Big Huge Thesaurus
• cicero-api library and program: API bindings to IOHK's Cicero job scheduler
• circlehs library: The CircleCI REST API for Haskell
• dialogflow-fulfillment library and test: A Dialogflow Fulfillment library for Haskell.
• doublify-toolkit library: Doublify API toolkit for Haskell
• dropbox library, program and test: Dropbox API client
• exchangerates library and test: A Haskell client for https://exchangeratesapi.io/
• factual-api library: A driver for the Factual API
• fixer library and test: A Haskell client for http://fixer.io/
• gitter library: Gitter.im API client
• hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
• hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
• jpl-horizons-api library and program: Ephemerides for solar system objects from the JPL Horizons service
• kawhi library and test: stats.NBA.com library
• leankit-api library: LeanKit API
• messente library: Messente SMS Gateway
• nylas library: Client for the Nylas API
• oanda-rest-api library and tests: Client to the OANDA REST API
• pagerduty-hs library and test: An interface to the PagerDuty API.
• plotserver-api library: Plotserver API
• pokitdok library: PokitDok Platform API Client for Haskell
• pubnub library, programs and test: PubNub Haskell SDK
• quandl-api library: Quandl.com API library
• rdioh library and programs: A Haskell wrapper for Rdio's API.
• reflex-gadt-api library and program: Interact with a GADT API in your reflex-dom application.
• servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
• speechmatics library, program and test: Speechmatics api client
• strive library: A client for the Strava V3 API.
• tablestorage library: Azure Table Storage REST API Wrapper
• textocat-api library and test: Unofficial Haskell SDK for Textocat API -- http://textocat.com
• themoviedb library, program and test: Haskell API bindings for http://themoviedb.org
• twfy-api-client library, program and test: They Work For You API Client Library
• uploadcare library: Haskell client for Uploadcare.
• voicebase library, program and test: Upload audio files to voicebase to get a transcription
• weather-api library: Weather API implemented in Haskell
• zendesk-api library: Zendesk API for Haskell programming language.

Apple

• hs-pkpass library: A library for Passbook pass creation & signing
• maclight library, program and test: Control screen and keyboard backlights on MACs under Linux
• workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Application

• boots library and test: IoC Monad in Haskell
• boots-app library and program: Factory for quickly building an application
• boots-cloud library: Factory for quickly building a microservice
• boots-web library: Factory for quickly building a web application
• cantor program and test: Application for analysis of java source code
• epub-tools programs and test: Command line utilities for working with epub files
• epubname program: Rename epub ebook files based on meta information
• follower program: Follow Tweets anonymously
• ghclive library and program: Interactive Haskell interpreter in a browser.
• Gifcurry library and programs: GIF creation utility.
• graph-rewriting-cl program: Interactive graph rewriting system implementing various well-known combinators
• graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus
• graph-rewriting-ski programs: Two interactive evalutors of the SKI combinator calculus
• graph-rewriting-trs program: Interactive evaluation of first-order applicative term rewrite systems
• graph-rewriting-ww program: Interactive evaluator of the lambda-calculus with explicit sharing
• haskell-pdf-presenter program: Tool for presenting PDF-based presentations.
• hscrtmpl programs: Haskell shell script templates
• imj-game-hamazed library, program and test: A game with flying numbers and 8-bit color animations.
• iptadmin program: web-interface for iptables
• movie-monad program: Plays videos using GStreamer and GTK+.
• nix-freeze-tree library, program and test: Convert a tree of files into fixed-output derivations
• opn program: Open files or URLs using associated programs.
• pb program: pastebin command line application
• perceptual-hash library, program, test and benchmark: Find duplicate images
• photoname library, program and test: Rename photo image files based on EXIF shoot date
• squeeze library, program and test: A file-packing application.
• sshtun program: Wrapper daemon to manage an ssh tunnel
• text-replace library, program and test: Simple text replacements from a list of search/replace pairs
• themplate program: Project templating tool
• thimk programs: Command-line spelling word suggestion tool
• traypoweroff program: Tray Icon application to PowerOff / Reboot computer
• weatherhs program: Weather and related data info command-line tool
• weekdaze library, program and test: A school-timetable problem-solver.
• wordlist library and program: Command-line tool to get random words

Application Server

• MFlow library: stateful, RESTful web framework
• Saturnin library, program and tests: Saturnin CI / Job System

Applicative

• lazyio-applicative library: LazyIO applicative for asymptotic performance
• uu-interleaved library: An interleaving combinator for use with applicative style implementations.

Archaeoinformatics

• currycarbon library, program and test: A package for simple, fast radiocarbon calibration

Archive

• archive-libarchive library: Common interface using libarchive
• archive-sig library: Backpack signature for archive libraries
• archive-tar library: Common interface using the tar package
• archive-tar-bytestring library: Common interface using the tar-bytestring package
• hstar program: Haskell version of tar CLI utility
• shake-bindist library: Rules for binary distributions
• streamly-archive library and test: Stream data from archives using the streamly library.
• streamly-zip library and test: Stream data from zip archives using the streamly library.

Argumentation

• arguedit program: A computer assisted argumentation transcription and editing software.
• CarneadesDSL library: An implementation and DSL for the Carneades argumentation model.
• CarneadesIntoDung library and program: A translation from the Carneades argumentation model into Dung's AFs.
• Dung library and program: An implementation of the Dung argumentation frameworks.

Arithmetic

• safe-numeric library and test: Safe arithmetic operations.

Array

• accelerate-kullback-liebler library, test and benchmark: Kullback-Liebler divergence
• apple library, programs, tests and benchmark: Apple array language compiler
• array-list library and tests: IsList instances of Array for OverloadedLists extension
• contiguous library, tests and benchmark: Unified interface for primitive arrays
• j library and test: J in Haskell
• massiv library and test: Massiv (Массив) is an Array Library.
• massiv-persist library and tests: Compatibility of 'massiv' with 'persist'
• massiv-serialise library and tests: Compatibility of 'massiv' with 'serialise'
• orthotope library and test: Multidimensional arrays inspired by APL
• orthotope-hmatrix library: Some algorithms from hmatrix
• primitive-checked library: primitive functions with bounds-checking
• primitive-maybe library and test: Arrays of Maybes
• streamly library: Streaming, dataflow programming and declarative concurrency
• streamly-core library: Streaming, parsers, arrays, serialization and more

Arrows

• arrow-utils library and test: functions for working with arrows
• Parallel-Arrows-BaseSpec library and test: BaseSpecs used for @Parallel-Arrows-Definition@ and Co.
• Parallel-Arrows-Definition library: Multithreaded evaluation using Arrows.
• Parallel-Arrows-Eden library and test: Eden based backend for @Parallel-Arrows-Definition@.
• Parallel-Arrows-Multicore library and test: GpH based backend for @Parallel-Arrows-Definition@ in a multicore variant.
• Parallel-Arrows-ParMonad library and test: Par Monad (@monad-par@) based backend for @Parallel-Arrows-Definition@.
• porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
• porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
• porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks

Artificial Intelligence

• mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
• opencog-atomspace library: Haskell Bindings for the AtomSpace.

Arxiv

• arxiv library: A client for the Arxiv API

ASCII

• double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]

ASP

• clingo library and programs: Haskell bindings to the Clingo ASP solver

Aspect Oriented Programming

• effective-aspects library and test: A monadic embedding of aspect oriented programming
• effective-aspects-mzv library and test: A monadic embedding of aspect oriented programming, using "Monads, ...

Assembler

• heystone library: Haskell bindings for the Keystone assembler framework

AST

• typerbole library and test: A typesystems library with exaggerated claims

Astrology

• swiss-ephemeris library and test: Haskell bindings for the Swiss Ephemeris C library

Astronomy

• jpl-horizons-api library and program: Ephemerides for solar system objects from the JPL Horizons service
• solar library: Simple library for solar calculations
• telescope library and test: Astronomical Observations (FITS, ASDF, WCS, etc)

Atom

• manatee-reader library and program: Feed reader extension for Manatee.

ATS

• ats-format program: A source-code formatter for ATS
• ats-pkg library and program: A build tool for ATS
• ats-setup library: ATS scripts for Cabal builds
• ats-storable library and test: Marshal ATS types into Haskell
• fast-arithmetic library, test and benchmark: Fast functions on integers.
• hs2ats library, program, test and benchmark: Create ATS types from Haskell types
• language-ats library, test and benchmark: Parser and pretty-printer for ATS.
• shake-ats library: Utilities for building ATS projects with shake

Attoparsec

• attoparsec-framer library, programs and test: Use Attoparsec to parse framed protocol byte streams
• attoparsec-time library: Attoparsec parsers of time
• ping-parser-attoparsec library, program and test: Attoparsec parsers of ping utility

Attribute Grammars

• XSaiga library and program: An implementation of a polynomial-time top-down parser suitable for NLP

Audio

• algorithmic-composition-overtones library: Some variants of the overtones functions to generate a timbre.
• cue-sheet library and test: Support for construction, rendering, and parsing of CUE sheets
• festival library: C bindings plus conveniences for the festival tts system.
• flac library and test: Complete high-level binding to libFLAC
• flac-picture library and test: Support for writing pictures into FLAC metadata blocks with JuicyPixels
• HGamer3D-SFML-Binding library: SFML Binding for HGamer3D
• lame library and test: A high-level binding to the LAME encoder
• libtagc library: Binding to TagLib C library.
• mediabus-rtp library, program and test: Receive and Send RTP Packets
• MusicBrainz-libdiscid library: Binding to libdiscid by MusicBrainz
• taglib-api library: An FFI layer over TagLib's C bindings
• vivid library: Sound synthesis with SuperCollider
• vivid-osc library and test: Open Sound Control encode/decode
• vivid-supercollider library and test: Implementation of SuperCollider server specifications
• wave library and test: Work with WAVE and RF64 files

Authentication

• fernet library, program and test: Generate and verify HMAC-based authentication tokens.
• gamgee library, program and test: Tool for generating TOTP MFA tokens.
• hsoz library, programs and test: Iron, Hawk, Oz: Web auth protocols
• my-test-docs library and tests: spam
• orizentic library, program and test: Token-based authentication and authorization
• pam library: Haskell binding for C PAM API
• servant-auth library: Authentication combinators for servant
• servant-auth-client library and test: servant-client/servant-auth compatibility
• servant-auth-docs library and tests: servant-docs/servant-auth compatibility
• servant-auth-server library and tests: servant-server/servant-auth compatibility
• servant-auth-swagger library and test: servant-swagger/servant-auth compatibility
• thentos-cookie-session library and test: All-in-one session handling for servant-based frontends
• wai-middleware-bearer library and test: WAI Middleware for Bearer Token Authentication
• webauthn library and test: Relying party (server) implementation of the WebAuthn 2 specification

Automatic Music Generation

• AlgoRhythm library, program and test: Algorithmic music composition

Automation

• eibd-client-simple library: EIBd Client
• hsautogui library and test: Haskell bindings for PyAutoGUI, a library for automating user interaction
• workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Avers

• avers library, test and benchmark: Server-side implementation of the Avers storage model
• avers-api library: Types describing the core and extended Avers APIs
• avers-api-docs library: Swagger documentation for the Avers API
• avers-server library: Server implementation of the Avers API

Aviation

• aip library, program and test: Aeronautical Information Package (AIP)
• aip-version program: Version of AIP documents
• aviation-cessna172-diagrams library: Diagrams for the Cessna 172 aircraft in aviation.
• aviation-cessna172-weight-balance library: Weight and Balance for the Cessna 172 aircraft in aviation.
• aviation-units library: Units of measurements used in aviation.
• aviation-weight-balance library: Weight and Balance structures used in aviation.
• avwx library, program and test: Parse aviation weather reports
• casa-abbreviations-and-acronyms library and programs: CASA Abbreviations and Acronyms
• casr-logbook library: CASR 61.345 Pilot Personal Logbook
• casr-logbook-html library and test: CASR 61.345 Pilot Personal Logbook HTML output
• casr-logbook-meta library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook)
• casr-logbook-meta-html library and test: Meta-information about entries in a CASR 61.345 logbook (casr-logbook) HTML output
• casr-logbook-reports library and test: CASR 61.345 logbook (casr-logbook) reports.
• casr-logbook-reports-html library and test: CASR 61.345 logbook reports HTML output
• casr-logbook-reports-meta library and test: Reports on meta-information about entries in a CASR 61.345 logbook (casr-logbook)
• casr-logbook-reports-meta-html library and test: HTML output for reports on meta-information about entries in a CASR 61.345 logbook
• casr-logbook-types library and test: CASR 61.345 Pilot Personal Logbook
• ersaconcat library, program and test: A script to concatenate AIP ERSA
• metar library, program and test: Australian METAR
• metar-http library, program and test: HTTP for METAR
• sixfiguregroup library and test: A six figure group of time
• stratux library: A library for stratux
• stratux-demo library and program: A demonstration of the stratux library.
• stratux-http library: A library for using HTTP with stratux
• stratux-types library: A library for reading JSON output from stratux
• stratux-websockets library: A library for using websockets with stratux
• vfr-waypoints library and program: VFR waypoints, as published in the AIP (ERSA)

AWS

• amazonka library: Comprehensive Amazon Web Services SDK.
• amazonka-accessanalyzer library and test: Amazon Access Analyzer SDK.
• amazonka-account library and test: Amazon Account SDK.
• amazonka-alexa-business library and test: Amazon Alexa For Business SDK.
• amazonka-amp library and test: Amazon Prometheus Service SDK.
• amazonka-amplify library and test: Amazon Amplify SDK.
• amazonka-amplifybackend library and test: Amazon AmplifyBackend SDK.
• amazonka-amplifyuibuilder library and test: Amazon Amplify UI Builder SDK.
• amazonka-apigateway library and test: Amazon API Gateway SDK.
• amazonka-apigatewaymanagementapi library and test: Amazon ApiGatewayManagementApi SDK.
• amazonka-apigatewayv2 library and test: Amazon ApiGatewayV2 SDK.
• amazonka-appconfig library and test: Amazon AppConfig SDK.
• amazonka-appconfigdata library and test: Amazon AppConfig Data SDK.
• amazonka-appflow library and test: Amazon Appflow SDK.
• amazonka-appintegrations library and test: Amazon AppIntegrations Service SDK.
• amazonka-application-autoscaling library and test: Amazon Application Auto Scaling SDK.
• amazonka-application-insights library and test: Amazon CloudWatch Application Insights SDK.
• amazonka-applicationcostprofiler library and test: Amazon Application Cost Profiler SDK.
• amazonka-appmesh library and test: Amazon App Mesh SDK.
• amazonka-apprunner library and test: Amazon App Runner SDK.
• amazonka-appstream library and test: Amazon AppStream SDK.
• amazonka-appsync library and test: Amazon AppSync SDK.
• amazonka-arc-zonal-shift library and test: Amazon ARC - Zonal Shift SDK.
• amazonka-athena library and test: Amazon Athena SDK.
• amazonka-auditmanager library and test: Amazon Audit Manager SDK.
• amazonka-autoscaling library and test: Amazon Auto Scaling SDK.
• amazonka-autoscaling-plans library and test: Amazon Auto Scaling Plans SDK.
• amazonka-backup library and test: Amazon Backup SDK.
• amazonka-backup-gateway library and test: Amazon Backup Gateway SDK.
• amazonka-backupstorage library and test: Amazon Backup Storage SDK.
• amazonka-batch library and test: Amazon Batch SDK.
• amazonka-billingconductor library and test: Amazon BillingConductor SDK.
• amazonka-braket library and test: Amazon Braket SDK.
• amazonka-budgets library and test: Amazon Budgets SDK.
• amazonka-certificatemanager library and test: Amazon Certificate Manager SDK.
• amazonka-certificatemanager-pca library and test: Amazon Certificate Manager Private Certificate Authority SDK.
• amazonka-chime library and test: Amazon Chime SDK.
• amazonka-chime-sdk-identity library and test: Amazon Chime SDK Identity SDK.
• amazonka-chime-sdk-media-pipelines library and test: Amazon Chime SDK Media Pipelines SDK.
• amazonka-chime-sdk-meetings library and test: Amazon Chime SDK Meetings SDK.
• amazonka-chime-sdk-messaging library and test: Amazon Chime SDK Messaging SDK.
• amazonka-chime-sdk-voice library and test: Amazon Chime SDK Voice SDK.
• amazonka-cloud9 library and test: Amazon Cloud9 SDK.
• amazonka-cloudcontrol library and test: Amazon Cloud Control API SDK.
• amazonka-clouddirectory library and test: Amazon CloudDirectory SDK.
• amazonka-cloudformation library and test: Amazon CloudFormation SDK.
• amazonka-cloudfront library and test: Amazon CloudFront SDK.
• amazonka-cloudhsm library and test: Amazon CloudHSM SDK.
• amazonka-cloudhsmv2 library and test: Amazon CloudHSM V2 SDK.
• amazonka-cloudsearch library and test: Amazon CloudSearch SDK.
• amazonka-cloudsearch-domains library and test: Amazon CloudSearch Domain SDK.
• amazonka-cloudtrail library and test: Amazon CloudTrail SDK.
• amazonka-cloudwatch library and test: Amazon CloudWatch SDK.
• amazonka-cloudwatch-events library and test: Amazon EventBridge SDK.
• amazonka-cloudwatch-logs library and test: Amazon CloudWatch Logs SDK.
• amazonka-codeartifact library and test: Amazon CodeArtifact SDK.
• amazonka-codebuild library and test: Amazon CodeBuild SDK.
• amazonka-codecommit library and test: Amazon CodeCommit SDK.
• amazonka-codedeploy library and test: Amazon CodeDeploy SDK.
• amazonka-codeguru-reviewer library and test: Amazon CodeGuru Reviewer SDK.
• amazonka-codeguruprofiler library and test: Amazon CodeGuru Profiler SDK.
• amazonka-codepipeline library and test: Amazon CodePipeline SDK.
• amazonka-codestar library and test: Amazon CodeStar SDK.
• amazonka-codestar-connections library and test: Amazon CodeStar connections SDK.
• amazonka-codestar-notifications library and test: Amazon CodeStar Notifications SDK.
• amazonka-cognito-identity library and test: Amazon Cognito Identity SDK.
• amazonka-cognito-idp library and test: Amazon Cognito Identity Provider SDK.
• amazonka-cognito-sync library and test: Amazon Cognito Sync SDK.
• amazonka-comprehend library and test: Amazon Comprehend SDK.
• amazonka-comprehendmedical library and test: Amazon Comprehend Medical SDK.
• amazonka-compute-optimizer library and test: Amazon Compute Optimizer SDK.
• amazonka-config library and test: Amazon Config SDK.
• amazonka-connect library and test: Amazon Connect Service SDK.
• amazonka-connect-contact-lens library and test: Amazon Connect Contact Lens SDK.
• amazonka-connectcampaigns library and test: Amazon ConnectCampaignService SDK.
• amazonka-connectcases library and test: Amazon Connect Cases SDK.
• amazonka-connectparticipant library and test: Amazon Connect Participant Service SDK.
• amazonka-contrib-rds-utils library and program: A Haskell equivalent of "aws rds generate-db-auth-token"
• amazonka-controltower library and test: Amazon Control Tower SDK.
• amazonka-core library and test: Core data types and functionality for Amazonka libraries.
• amazonka-cost-explorer library and test: Amazon Cost Explorer Service SDK.
• amazonka-cur library and test: Amazon Cost and Usage Report Service SDK.
• amazonka-customer-profiles library and test: Amazon Connect Customer Profiles SDK.
• amazonka-databrew library and test: Amazon Glue DataBrew SDK.
• amazonka-dataexchange library and test: Amazon Data Exchange SDK.
• amazonka-datapipeline library and test: Amazon Data Pipeline SDK.
• amazonka-datasync library and test: Amazon DataSync SDK.
• amazonka-detective library and test: Amazon Detective SDK.
• amazonka-devicefarm library and test: Amazon Device Farm SDK.
• amazonka-devops-guru library and test: Amazon DevOps Guru SDK.
• amazonka-directconnect library and test: Amazon Direct Connect SDK.
• amazonka-discovery library and test: Amazon Application Discovery Service SDK.
• amazonka-dlm library and test: Amazon Data Lifecycle Manager SDK.
• amazonka-dms library and test: Amazon Database Migration Service SDK.
• amazonka-docdb library and test: Amazon DocumentDB with MongoDB compatibility SDK.
• amazonka-docdb-elastic library and test: Amazon DocumentDB Elastic Clusters SDK.
• amazonka-drs library and test: Amazon Elastic Disaster Recovery Service SDK.
• amazonka-ds library and test: Amazon Directory Service SDK.
• amazonka-dynamodb library and test: Amazon DynamoDB SDK.
• amazonka-dynamodb-dax library and test: Amazon DynamoDB Accelerator (DAX) SDK.
• amazonka-dynamodb-streams library and test: Amazon DynamoDB Streams SDK.
• amazonka-ebs library and test: Amazon Elastic Block Store SDK.
• amazonka-ec2 library and test: Amazon Elastic Compute Cloud SDK.
• amazonka-ec2-instance-connect library and test: Amazon EC2 Instance Connect SDK.
• amazonka-ecr library and test: Amazon EC2 Container Registry SDK.
• amazonka-ecr-public library and test: Amazon Elastic Container Registry Public SDK.
• amazonka-ecs library and test: Amazon EC2 Container Service SDK.
• amazonka-efs library and test: Amazon Elastic File System SDK.
• amazonka-eks library and test: Amazon Elastic Kubernetes Service SDK.
• amazonka-elastic-inference library and test: Amazon Elastic Inference SDK.
• amazonka-elasticache library and test: Amazon ElastiCache SDK.
• amazonka-elasticbeanstalk library and test: Amazon Elastic Beanstalk SDK.
• amazonka-elasticsearch library and test: Amazon Elasticsearch Service SDK.
• amazonka-elastictranscoder library and test: Amazon Elastic Transcoder SDK.
• amazonka-elb library and test: Amazon Elastic Load Balancing SDK.
• amazonka-elbv2 library and test: Amazon Elastic Load Balancing SDK.
• amazonka-emr library and test: Amazon EMR SDK.
• amazonka-emr-containers library and test: Amazon EMR Containers SDK.
• amazonka-emr-serverless library and test: Amazon EMR Serverless SDK.
• amazonka-evidently library and test: Amazon CloudWatch Evidently SDK.
• amazonka-finspace library and test: Amazon FinSpace User Environment Management service SDK.
• amazonka-finspace-data library and test: Amazon FinSpace Public API SDK.
• amazonka-fis library and test: Amazon Fault Injection Simulator SDK.
• amazonka-fms library and test: Amazon Firewall Management Service SDK.
• amazonka-forecast library and test: Amazon Forecast Service SDK.
• amazonka-forecastquery library and test: Amazon Forecast Query Service SDK.
• amazonka-frauddetector library and test: Amazon Fraud Detector SDK.
• amazonka-fsx library and test: Amazon FSx SDK.
• amazonka-gamelift library and test: Amazon GameLift SDK.
• amazonka-gamesparks library and test: Amazon GameSparks SDK.
• amazonka-glacier library and test: Amazon Glacier SDK.
• amazonka-globalaccelerator library and test: Amazon Global Accelerator SDK.
• amazonka-glue library and test: Amazon Glue SDK.
• amazonka-grafana library and test: Amazon Managed Grafana SDK.
• amazonka-greengrass library and test: Amazon Greengrass SDK.
• amazonka-greengrassv2 library and test: Amazon IoT Greengrass V2 SDK.
• amazonka-groundstation library and test: Amazon Ground Station SDK.
• amazonka-guardduty library and test: Amazon GuardDuty SDK.
• amazonka-health library and test: Amazon Health APIs and Notifications SDK.
• amazonka-healthlake library and test: Amazon HealthLake SDK.
• amazonka-honeycode library and test: Amazon Honeycode SDK.
• amazonka-iam library and test: Amazon Identity and Access Management SDK.
• amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
• amazonka-identitystore library and test: Amazon SSO Identity Store SDK.
• amazonka-imagebuilder library and test: Amazon EC2 Image Builder SDK.
• amazonka-importexport library and test: Amazon Import/Export SDK.
• amazonka-inspector library and test: Amazon Inspector SDK.
• amazonka-inspector2 library and test: Amazon Inspector2 SDK.
• amazonka-iot library and test: Amazon IoT SDK.
• amazonka-iot-analytics library and test: Amazon IoT Analytics SDK.
• amazonka-iot-dataplane library and test: Amazon IoT Data Plane SDK.
• amazonka-iot-jobs-dataplane library and test: Amazon IoT Jobs Data Plane SDK.
• amazonka-iot-roborunner library and test: Amazon IoT RoboRunner SDK.
• amazonka-iot1click-devices library and test: Amazon IoT 1-Click Devices Service SDK.
• amazonka-iot1click-projects library and test: Amazon IoT 1-Click Projects Service SDK.
• amazonka-iotdeviceadvisor library and test: Amazon IoT Core Device Advisor SDK.
• amazonka-iotevents library and test: Amazon IoT Events SDK.
• amazonka-iotevents-data library and test: Amazon IoT Events Data SDK.
• amazonka-iotfleethub library and test: Amazon IoT Fleet Hub SDK.
• amazonka-iotfleetwise library and test: Amazon IoT FleetWise SDK.
• amazonka-iotsecuretunneling library and test: Amazon IoT Secure Tunneling SDK.
• amazonka-iotsitewise library and test: Amazon IoT SiteWise SDK.
• amazonka-iotthingsgraph library and test: Amazon IoT Things Graph SDK.
• amazonka-iottwinmaker library and test: Amazon IoT TwinMaker SDK.
• amazonka-iotwireless library and test: Amazon IoT Wireless SDK.
• amazonka-ivs library and test: Amazon Interactive Video Service SDK.
• amazonka-ivschat library and test: Amazon Interactive Video Service Chat SDK.
• amazonka-kafka library and test: Amazon Managed Streaming for Kafka SDK.
• amazonka-kafkaconnect library and test: Amazon Managed Streaming for Kafka Connect SDK.
• amazonka-kendra library and test: Amazon KendraFrontendService SDK.
• amazonka-keyspaces library and test: Amazon Keyspaces SDK.
• amazonka-kinesis library and test: Amazon Kinesis SDK.
• amazonka-kinesis-analytics library and test: Amazon Kinesis Analytics SDK.
• amazonka-kinesis-firehose library and test: Amazon Kinesis Firehose SDK.
• amazonka-kinesis-video library and test: Amazon Kinesis Video Streams SDK.
• amazonka-kinesis-video-archived-media library and test: Amazon Kinesis Video Streams Archived Media SDK.
• amazonka-kinesis-video-media library and test: Amazon Kinesis Video Streams Media SDK.
• amazonka-kinesis-video-signaling library and test: Amazon Kinesis Video Signaling Channels SDK.
• amazonka-kinesis-video-webrtc-storage library and test: Amazon Kinesis Video WebRTC Storage SDK.
• amazonka-kinesisanalyticsv2 library and test: Amazon Kinesis Analytics SDK.
• amazonka-kms library and test: Amazon Key Management Service SDK.
• amazonka-lakeformation library and test: Amazon Lake Formation SDK.
• amazonka-lambda library and test: Amazon Lambda SDK.
• amazonka-lex-models library and test: Amazon Lex Model Building Service SDK.
• amazonka-lex-runtime library and test: Amazon Lex Runtime Service SDK.
• amazonka-lexv2-models library and test: Amazon Lex Model Building V2 SDK.
• amazonka-license-manager library and test: Amazon License Manager SDK.
• amazonka-license-manager-linux-subscriptions library and test: Amazon License Manager Linux Subscriptions SDK.
• amazonka-license-manager-user-subscriptions library and test: Amazon License Manager User Subscriptions SDK.
• amazonka-lightsail library and test: Amazon Lightsail SDK.
• amazonka-location library and test: Amazon Location Service SDK.
• amazonka-lookoutequipment library and test: Amazon Lookout for Equipment SDK.
• amazonka-lookoutmetrics library and test: Amazon Lookout for Metrics SDK.
• amazonka-lookoutvision library and test: Amazon Lookout for Vision SDK.
• amazonka-m2 library and test: Amazon MainframeModernization SDK.
• amazonka-macie library and test: Amazon Macie SDK.
• amazonka-maciev2 library and test: Amazon Macie 2 SDK.
• amazonka-managedblockchain library and test: Amazon Managed Blockchain SDK.
• amazonka-marketplace-analytics library and test: Amazon Marketplace Commerce Analytics SDK.
• amazonka-marketplace-catalog library and test: Amazon Marketplace Catalog Service SDK.
• amazonka-marketplace-entitlement library and test: Amazon Marketplace Entitlement Service SDK.
• amazonka-marketplace-metering library and test: Amazon Marketplace Metering SDK.
• amazonka-mechanicalturk library and test: Amazon Mechanical Turk SDK.
• amazonka-mediaconnect library and test: Amazon MediaConnect SDK.
• amazonka-mediaconvert library and test: Amazon Elemental MediaConvert SDK.
• amazonka-medialive library and test: Amazon Elemental MediaLive SDK.
• amazonka-mediapackage library and test: Amazon Elemental MediaPackage SDK.
• amazonka-mediapackage-vod library and test: Amazon Elemental MediaPackage VOD SDK.
• amazonka-mediastore library and test: Amazon Elemental MediaStore SDK.
• amazonka-mediastore-dataplane library and test: Amazon Elemental MediaStore Data Plane SDK.
• amazonka-mediatailor library and test: Amazon MediaTailor SDK.
• amazonka-memorydb library and test: Amazon MemoryDB SDK.
• amazonka-mgn library and test: Amazon Application Migration Service SDK.
• amazonka-migration-hub-refactor-spaces library and test: Amazon Migration Hub Refactor Spaces SDK.
• amazonka-migrationhub library and test: Amazon Migration Hub SDK.
• amazonka-migrationhub-config library and test: Amazon Migration Hub Config SDK.
• amazonka-migrationhuborchestrator library and test: Amazon Migration Hub Orchestrator SDK.
• amazonka-migrationhubstrategy library and test: Amazon Migration Hub Strategy Recommendations SDK.
• amazonka-ml library and test: Amazon Machine Learning SDK.
• amazonka-mobile library and test: Amazon Mobile SDK.
• amazonka-mq library and test: Amazon MQ SDK.
• amazonka-mwaa library and test: Amazon MWAA SDK.
• amazonka-neptune library and test: Amazon Neptune SDK.
• amazonka-network-firewall library and test: Amazon Network Firewall SDK.
• amazonka-networkmanager library and test: Amazon Network Manager SDK.
• amazonka-nimble library and test: Amazon NimbleStudio SDK.
• amazonka-oam library and test: Amazon CloudWatch Observability Access Manager SDK.
• amazonka-omics library and test: Amazon Omics SDK.
• amazonka-opensearch library and test: Amazon OpenSearch Service SDK.
• amazonka-opensearchserverless library and test: Amazon OpenSearch Service Serverless SDK.
• amazonka-opsworks library and test: Amazon OpsWorks SDK.
• amazonka-opsworks-cm library and test: Amazon OpsWorks CM SDK.
• amazonka-organizations library and test: Amazon Organizations SDK.
• amazonka-outposts library and test: Amazon Outposts SDK.
• amazonka-panorama library and test: Amazon Panorama SDK.
• amazonka-personalize library and test: Amazon Personalize SDK.
• amazonka-personalize-events library and test: Amazon Personalize Events SDK.
• amazonka-personalize-runtime library and test: Amazon Personalize Runtime SDK.
• amazonka-pi library and test: Amazon Performance Insights SDK.
• amazonka-pinpoint library and test: Amazon Pinpoint SDK.
• amazonka-pinpoint-email library and test: Amazon Pinpoint Email Service SDK.
• amazonka-pinpoint-sms-voice library and test: Amazon Pinpoint SMS and Voice Service SDK.
• amazonka-pinpoint-sms-voice-v2 library and test: Amazon Pinpoint SMS Voice V2 SDK.
• amazonka-pipes library and test: Amazon EventBridge Pipes SDK.
• amazonka-polly library and test: Amazon Polly SDK.
• amazonka-pricing library and test: Amazon Price List Service SDK.
• amazonka-privatenetworks library and test: Amazon Private 5G SDK.
• amazonka-proton library and test: Amazon Proton SDK.
• amazonka-qldb library and test: Amazon QLDB SDK.
• amazonka-qldb-session library and test: Amazon QLDB Session SDK.
• amazonka-quicksight library and test: Amazon QuickSight SDK.
• amazonka-ram library and test: Amazon Resource Access Manager SDK.
• amazonka-rbin library and test: Amazon Recycle Bin SDK.
• amazonka-rds library and test: Amazon Relational Database Service SDK.
• amazonka-rds-data library and test: Amazon RDS DataService SDK.
• amazonka-redshift library and test: Amazon Redshift SDK.
• amazonka-redshift-data library and test: Amazon Redshift Data API Service SDK.
• amazonka-redshift-serverless library and test: Amazon Redshift Serverless SDK.
• amazonka-rekognition library and test: Amazon Rekognition SDK.
• amazonka-resiliencehub library and test: Amazon Resilience Hub SDK.
• amazonka-resource-explorer-v2 library and test: Amazon Resource Explorer SDK.
• amazonka-resourcegroups library and test: Amazon Resource Groups SDK.
• amazonka-resourcegroupstagging library and test: Amazon Resource Groups Tagging API SDK.
• amazonka-robomaker library and test: Amazon RoboMaker SDK.
• amazonka-rolesanywhere library and test: Amazon IAM Roles Anywhere SDK.
• amazonka-route53 library and test: Amazon Route 53 SDK.
• amazonka-route53-autonaming library and test: Amazon Cloud Map SDK.
• amazonka-route53-domains library and test: Amazon Route 53 Domains SDK.
• amazonka-route53-recovery-cluster library and test: Amazon Route53 Recovery Cluster SDK.
• amazonka-route53-recovery-control-config library and test: Amazon Route53 Recovery Control Config SDK.
• amazonka-route53-recovery-readiness library and test: Amazon Route53 Recovery Readiness SDK.
• amazonka-route53resolver library and test: Amazon Route 53 Resolver SDK.
• amazonka-rum library and test: Amazon CloudWatch RUM SDK.
• amazonka-s3 library and test: Amazon Simple Storage Service SDK.
• amazonka-s3-encryption library and test: Amazon Simple Storage Service SDK - Client-Side Encryption.
• amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
• amazonka-s3outposts library and test: Amazon S3 on Outposts SDK.
• amazonka-sagemaker library and test: Amazon SageMaker Service SDK.
• amazonka-sagemaker-a2i-runtime library and test: Amazon Augmented AI Runtime SDK.
• amazonka-sagemaker-edge library and test: Amazon Sagemaker Edge Manager SDK.
• amazonka-sagemaker-featurestore-runtime library and test: Amazon SageMaker Feature Store Runtime SDK.
• amazonka-sagemaker-geospatial library and test: Amazon SageMaker geospatial capabilities SDK.
• amazonka-sagemaker-metrics library and test: Amazon SageMaker Metrics Service SDK.
• amazonka-sagemaker-runtime library and test: Amazon SageMaker Runtime SDK.
• amazonka-savingsplans library and test: Amazon Savings Plans SDK.
• amazonka-scheduler library and test: Amazon EventBridge Scheduler SDK.
• amazonka-schemas library and test: Amazon Schemas SDK.
• amazonka-sdb library and test: Amazon SimpleDB SDK.
• amazonka-secretsmanager library and test: Amazon Secrets Manager SDK.
• amazonka-securityhub library and test: Amazon SecurityHub SDK.
• amazonka-securitylake library and test: Amazon Security Lake SDK.
• amazonka-serverlessrepo library and test: Amazon ServerlessApplicationRepository SDK.
• amazonka-service-quotas library and test: Amazon Quotas SDK.
• amazonka-servicecatalog library and test: Amazon Service Catalog SDK.
• amazonka-servicecatalog-appregistry library and test: Amazon Service Catalog App Registry SDK.
• amazonka-ses library and test: Amazon Simple Email Service SDK.
• amazonka-sesv2 library and test: Amazon Simple Email Service SDK.
• amazonka-shield library and test: Amazon Shield SDK.
• amazonka-signer library and test: Amazon Signer SDK.
• amazonka-simspaceweaver library and test: Amazon SimSpace Weaver SDK.
• amazonka-sms library and test: Amazon Server Migration Service SDK.
• amazonka-sms-voice library and test: Amazon Pinpoint SMS and Voice Service SDK.
• amazonka-snow-device-management library and test: Amazon Snow Device Management SDK.
• amazonka-snowball library and test: Amazon Import/Export Snowball SDK.
• amazonka-sns library and test: Amazon Simple Notification Service SDK.
• amazonka-sqs library and test: Amazon Simple Queue Service SDK.
• amazonka-ssm library and test: Amazon Simple Systems Manager (SSM) SDK.
• amazonka-ssm-contacts library and test: Amazon Systems Manager Incident Manager Contacts SDK.
• amazonka-ssm-incidents library and test: Amazon Systems Manager Incident Manager SDK.
• amazonka-ssm-sap library and test: Amazon Systems Manager for SAP SDK.
• amazonka-sso library and test: Amazon Single Sign-On SDK.
• amazonka-sso-admin library and test: Amazon Single Sign-On Admin SDK.
• amazonka-sso-oidc library and test: Amazon SSO OIDC SDK.
• amazonka-stepfunctions library and test: Amazon Step Functions SDK.
• amazonka-storagegateway library and test: Amazon Storage Gateway SDK.
• amazonka-sts library and test: Amazon Security Token Service SDK.
• amazonka-support library and test: Amazon Support SDK.
• amazonka-support-app library and test: Amazon Support App SDK.
• amazonka-swf library and test: Amazon Simple Workflow Service SDK.
• amazonka-synthetics library and test: Amazon Synthetics SDK.
• amazonka-test library: Common functionality for Amazonka library test-suites.
• amazonka-textract library and test: Amazon Textract SDK.
• amazonka-timestream-query library and test: Amazon Timestream Query SDK.
• amazonka-timestream-write library and test: Amazon Timestream Write SDK.
• amazonka-transcribe library and test: Amazon Transcribe Service SDK.
• amazonka-transfer library and test: Amazon Transfer Family SDK.
• amazonka-translate library and test: Amazon Translate SDK.
• amazonka-voice-id library and test: Amazon Voice ID SDK.
• amazonka-waf library and test: Amazon WAF SDK.
• amazonka-waf-regional library and test: Amazon WAF Regional SDK.
• amazonka-wafv2 library and test: Amazon WAFV2 SDK.
• amazonka-wellarchitected library and test: Amazon Well-Architected Tool SDK.
• amazonka-wisdom library and test: Amazon Connect Wisdom Service SDK.
• amazonka-workdocs library and test: Amazon WorkDocs SDK.
• amazonka-worklink library and test: Amazon WorkLink SDK.
• amazonka-workmail library and test: Amazon WorkMail SDK.
• amazonka-workmailmessageflow library and test: Amazon WorkMail Message Flow SDK.
• amazonka-workspaces library and test: Amazon WorkSpaces SDK.
• amazonka-workspaces-web library and test: Amazon WorkSpaces Web SDK.
• amazonka-xray library and test: Amazon X-Ray SDK.
• aws library, programs and tests: Amazon Web Services (AWS) for Haskell
• aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
• aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
• aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
• aws-dynamodb-conduit library: Conduit-based interface for AWS DynamoDB
• aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
• aws-ec2-knownhosts library and programs: Capture and manage AWS EC2 known_host pubkeys
• aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
• aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
• aws-kinesis library and test: Bindings for Amazon Kinesis
• aws-lambda-haskell-runtime library and test: Haskell runtime for AWS Lambda
• aws-lambda-haskell-runtime-wai library and test: Run wai applications on AWS Lambda
• aws-lambda-runtime library and program: Haskell on AWS Lambda Runtime API
• aws-larpi library: Package Haskell functions for easy use on AWS Lambda.
• aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
• aws-sdk library and test: AWS SDK for Haskell
• aws-secrets library and test: Fetch data from AWS Secrets Manager
• aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
• aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
• aws-sns-verify library and test: Parse and verify AWS SNS messages
• aws-spend-summary library and program: Extract recent daily AWS costs
• awsspendsummary library and program: Extract recent daily AWS costs
• credentials library and test: Secure Credentials Storage and Distribution
• credentials-cli program: Secure Credentials Administration
• ec2-unikernel program: A handy tool for uploading unikernels to Amazon's EC2.
• eventful-dynamodb library and test: Library for eventful DynamoDB event stores
• groot library, program and test: Command line utility to manage AWS ECS resources
• hal library and test: A runtime environment for Haskell applications running on AWS Lambda.
• hs-aws-lambda library and test: ...
• infernal library: The Infernal Machine - An AWS Lambda Custom Runtime for Haskell
• kerry library and test: Manage and abstract your packer configurations.
• loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
• minio-hs library, programs and tests: A MinIO Haskell Library for Amazon S3 compatible cloud storage.
• mismi-core library and tests: AWS Library
• mismi-kernel library and test: AWS Library
• mismi-s3 library, tests and benchmark: AWS Library
• mismi-s3-core library and test: AWS Library
• porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
• s3-signer library and test: Pre-signed Amazon S3 URLs
• serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
• ses-html library: Send HTML formatted emails using Amazon's SES REST API with blaze
• ses-html-snaplet library: Snaplet for the ses-html package
• snaplet-ses-html library: Snaplet for the ses-html package
• stratosphere library, programs and test: EDSL for AWS CloudFormation
• wai-handler-hal library and test: Wrap WAI applications to run on AWS Lambda
• wolf library and programs: Amazon Simple Workflow Service Wrapper.

Azure

• azure-functions-worker library and test: Azure Functions Worker

Backup

• bkr library and program: Backup utility for backing up to cloud storage services (S3 only right now)
• multiplicity program: Wrapper program for duplicity, adding config files
• pinboard-notes-backup program: Back up the notes you've saved to Pinboard

Barcode

• zbar library: zbar bindings in Haskell

Base

• guid library and test: A simple wrapper around uuid

Benchmark

• concurrency-benchmarks program and benchmark: Benchmarks to compare concurrency APIs
• streaming-benchmarks program and benchmark: Measures and compares the performance of streaming libraries

Benchmarking

• bench-graph library and test: Plot and compare benchmarks
• bench-show library, program and tests: Show, plot and compare benchmark results
• BenchmarkHistory library and program: Benchmark functions with history
• chronos-bench library, program and benchmark: Benchmarking tool with focus on comparing results.
• cloben program: Clone and benchmark Haskell cabal projects
• containers-benchmark program: Extensive benchmark suite for containers package.
• criterion library, program and tests: Robust, reliable performance measurement and analysis
• criterion-measurement library: Criterion measurement functionality and associated types
• criterion-plus library and test: Enhancement of the "criterion" benchmarking library
• feed-gipeda library, program and test: CI service around gipeda
• fibon programs: Tools for running and analyzing Haskell benchmarks
• freer-simple-profiling library and test: Automatic profling of freer-simple programs
• gauge tests and benchmark: small framework for performance measurement and analysis
• hashtable-benchmark program: Benchmark of hash table implementations
• hyperion library, programs and test: Reliable performance measurement with robust data export.
• miniterion library, test and benchmark: Simple and lightweight benchmarking utilities
• paramtree library and test: Generate labelled test/benchmark trees from sets of parameters
• park-bench library: A quick-and-dirty, low-friction benchmark tool with immediate feedback
• tasty-bench library and benchmark: Featherlight benchmark framework
• tasty-papi test: Bencmarking using instruction counting

Big Data

• karps library and tests: Haskell bindings for Spark Dataframes and Datasets
• krapsh library and tests: Haskell bindings for Spark Dataframes and Datasets

Binary

• binary-orphans library and test: Compatibility package for binary; provides instances
• binary-parser library and test: An efficient but limited parser API specialised to bytestrings
• leb128-binary library, test and benchmark: Signed and unsigned LEB128 codec for binary library
• lsh library, program and test: A simple ls clone with modern, colored formatting
• streamly-binary library and test: Integration of streamly and binary

Bindings

• bindings-codec2 library and program: Very low-level FFI bindings for Codec2
• bindings-nettle library and test: bindings to nettle crypto library
• cli-git library: Bindings to the git command-line interface
• cli-nix library: Bindings to the nix command-line interface
• gi-adwaita library: Adwaita bindings
• gi-atk library: Atk bindings
• gi-ayatana-appindicator3 library: libayatana-appindicator3 bindings
• gi-cairo library: Cairo bindings
• gi-clutter library: clutter GObject bindings
• gi-cogl library: COGL GObject bindings
• gi-coglpango library: Cogl Pango GObject bindings
• gi-dazzle library: libdazzle bindings
• gi-dbusmenu library: Dbusmenu bindings
• gi-dbusmenugtk3 library: DbusmenuGtk bindings
• gi-freetype2 library: freetype2 bindings
• gi-gdk library: Gdk bindings
• gi-gdkpixbuf library: GdkPixbuf bindings
• gi-gdkx11 library: GdkX11 bindings
• gi-ges library: libges bindings
• gi-ggit library: libgit2-glib bindings
• gi-gio library: Gio bindings
• gi-girepository library: GIRepository (gobject-introspection) bindings
• gi-glib library: GLib bindings
• gi-gmodule library: GModule bindings
• gi-gobject library: GObject bindings
• gi-graphene library: Graphene bindings
• gi-gsk library: Gsk bindings
• gi-gst library: GStreamer bindings
• gi-gstapp library: GStreamerApp bindings
• gi-gstaudio library: GStreamerAudio bindings
• gi-gstbase library: GStreamerBase bindings
• gi-gstpbutils library: GStreamer Plugins Base Utils bindings
• gi-gsttag library: GStreamer Tag bindings
• gi-gstvideo library: GStreamerVideo bindings
• gi-gtk library: Gtk bindings
• gi-gtk-layer-shell library: gtk-layer-shell bindings
• gi-gtkosxapplication library: GtkosxApplication bindings
• gi-gtksheet library: GtkSheet bindings
• gi-gtksource library: GtkSource bindings
• gi-handy library: libhandy bindings
• gi-harfbuzz library: HarfBuzz bindings
• gi-ibus library: IBus bindings
• gi-javascriptcore library: JavaScriptCore bindings
• gi-json library: JSON GObject bindings
• gi-keybinder library: Libkeybinder bindings
• gi-nm library: NM bindings
• gi-notify library: Libnotify bindings
• gi-ostree library: OSTree bindings
• gi-pango library: Pango bindings
• gi-pangocairo library: PangoCairo bindings
• gi-poppler library: Poppler bindings
• gi-rsvg library: librsvg bindings
• gi-secret library: Libsecret bindings
• gi-soup library: Libsoup bindings
• gi-vips library: libvips GObject bindings
• gi-vte library: Vte bindings
• gi-webkit library: WebKit bindings
• gi-webkit2 library: WebKit2 bindings
• gi-webkit2webextension library: WebKit2-WebExtension bindings
• gi-webkitwebprocessextension library: WebKitWebProcessExtension bindings
• gi-wnck library: Wnck bindings
• gi-xlib library: xlib bindings
• haskell-ffprobe library and test: Haskell bindings for ffprobe
• haskell-gi-overloading library: Overloading support for haskell-gi
• heystone library: Haskell bindings for the Keystone assembler framework
• hs-tango library and benchmarks: Bindings to the Tango Controls system
• nfc library and program: libnfc bindings
• souffle-haskell library, test and benchmark: Souffle Datalog bindings for Haskell
• TORCS library and program: Bindings to the TORCS vehicle simulator.
• ViennaRNA-bindings library and test: ViennaRNA v2 bindings
• workflow-osx library and program: a "Desktop Workflow" monad with Objective-C bindings

Bio

• bbi library and test: Tools for reading Big Binary Indexed files, e.g., bigBed, bigWig
• bio-sequence library and tests: Initial project template from stack
• bioinformatics-toolkit library, test and benchmark: A collection of bioinformatics tools
• cobot library, test and benchmark: ...
• cobot-io library and test: Biological data file formats and IO
• cobot-tools library and test: Biological data file formats and IO
• HsHTSLib library and test: Bindings to htslib.
• uniprot-kb library and test: UniProt-KB format parser

Bioinformatics

• a50 program: Compare genome assemblies
• adp-multi library, programs and test: ADP for multiple context-free languages
• adp-multi-monadiccp library, program and test: Subword construction in adp-multi using monadiccp
• ADPfusion library, programs and test: Efficient, high-level dynamic programming.
• ADPfusionForest library, programs, test and benchmark: Dynamic programming on tree and forest structures
• ADPfusionSet library and test: Dynamic programming for Set data structures.
• AlignmentAlgorithms library: Collection of alignment algorithms
• bamstats library and program: A program to extract various information from BAM alignmnet files.
• BCMtools library and program: Big Contact Map Tools
• bio library and programs: A bioinformatics library
• bioace library: Library for reading ace assembly files
• bioalign library: Data structures and helper functions for calculating alignments
• Biobase library: Base library for bioinformatics
• BiobaseBlast library and test: BLAST-related tools
• BiobaseDotP library: Vienna / DotBracket / ExtSS parsers
• BiobaseEnsembl library: Ensembl related datastructures and functions
• BiobaseFasta library, program and test: streaming FASTA parser
• BiobaseFR3D library: Importer for FR3D resources
• BiobaseHTTP library: Libary to interface with the Bioinformatics HTTP services - Entrez Ensembl
• BiobaseHTTPTools programs: Tools to query Bioinformatics HTTP services e.g. Entrez, Ensembl.
• BiobaseInfernal library, program, test and benchmark: Infernal data structures and tools
• BiobaseMAF library: Multiple Alignment Format
• BiobaseNewick library, program and test: Newick file format parser.
• BiobaseTrainingData library and program: RNA folding training data
• BiobaseTurner library: Import Turner RNA parameters
• BiobaseTypes library and test: Collection of types for bioinformatics
• BiobaseVienna library: Import Vienna energy parameters
• BiobaseXNA library, program and test: Efficient RNA/DNA/Protein Primary/Secondary Structure
• biocore library: A bioinformatics library
• biofasta library: Library for reading fasta sequence files
• biofastq library: A library for reading FASTQ files
• biohazard library: bioinformatics support library
• BioHMM library: Libary for Hidden Markov Models in HMMER3 format.
• biophd library: Library for reading phd sequence files
• biopsl library and programs: Library and executables for working with PSL files
• biosff library and programs: Library and executables for working with SFF files
• biostockholm library and test: Parsing and rendering of Stockholm files (used by Pfam, Rfam and Infernal).
• birch-beer library and program: Plot a colorful tree.
• BlastHTTP library: Libary to interface with the NCBI blast REST interface
• blastxml library: Library for reading Blast XML output
• blosum library and program: BLOSUM generator
• classify-frog programs: Classify sounds produced by Xenopus laevis
• ClustalParser library, program and test: Libary for parsing Clustal tools output
• clustertools programs: Tools for manipulating sequence clusters
• CMCompare library and program: Infernal covariance model comparison
• cmv library and programs: Detailed visualization of CMs, HMMs and their comparisions
• collapse-duplication library and program: Collapse the duplication output into clones and return their frequencies.
• convert-annotation library and program: ...
• dephd programs: Analyze quality of nucleotide sequences.
• differential library and program: Finds out whether an entity comes from different distributions (statuses).
• diversity library and program: Quantify the diversity of a population
• DnaProteinAlignment library and program: Frameshift-aware alignment of protein sequences with DNA sequences
• elynx program: Validate and (optionally) redo ELynx analyses
• elynx-markov library, test and benchmark: Simulate molecular sequences along trees
• elynx-nexus library and test: Import and export Nexus files
• elynx-seq library and test: Handle molecular sequences
• elynx-tools library: Tools for ELynx
• elynx-tree library, test and benchmark: Handle phylogenetic trees
• EntrezHTTP library: Libary to interface with the NCBI Entrez REST service.
• estreps programs: Repeats from ESTs
• flower programs: Analyze 454 flowgrams (.SFF files)
• flowsim programs: Simulate 454 pyrosequencing
• Forestry library, program, test and benchmark: Comparison of trees and forests.
• ForestStructures library, test and benchmark: Tree- and forest structures
• FormalGrammars library and test: (Context-free) grammars in formal language theory
• gact program: General Alignment Clustering Tool
• Genbank library and program: Libary for processing the NCBI genbank format
• Gene-CluEDO library, program and test: Hox gene clustering
• GenussFold library, program and test: MCFGs for Genus-1 RNA Pseudoknots
• GrammarProducts library, program and test: Grammar products and higher-dimensional grammars
• heatitup library and program: Find and annotate ITDs.
• heatitup-complete library and program: Find and annotate ITDs with assembly or read pair joining.
• hemokit library, programs, test and benchmarks: Haskell port of the Emokit EEG project
• hierarchical-spectral-clustering library and program: Hierarchical spectral clustering of a graph.
• hPDB library: Protein Databank file format library
• hPDB-examples programs and test: Examples for hPDB library
• hs-samtools library and test: Read and write SAM, BAM, and CRAM files.
• hTalos library and test: Parser, print and manipulate structures in PDB file format.
• hyraxAbif library, program and test: Modules for parsing, generating and manipulating AB1 files.
• integreat library and program: Integrate different assays.
• korfu program: The Korfu ORF Utility
• MC-Fold-DP library and program: Folding algorithm based on nucleotide cyclic motifs.
• memexml library: Library for reading Meme XML output
• mmtf library and test: Macromolecular Transmission Format implementation
• modify-fasta library and program: Modify fasta (and CLIP) files in several optional ways
• modularity library: Find the modularity of a network.
• MutationOrder library, program and test: Most likely order of mutation events in RNA
• normalize library and program: Normalize data using a variety of methods.
• Nussinov78 library and program: Nussinov78 using the ADPfusion library.
• PDBtools library and program: A library for analysis of 3-D protein coordinates
• phybin library, program and test: ...
• pipes-ordered-zip library and test: merge two ordered Producers into a new Producer
• ploterific library and program: Basic plotting of tabular data for the command line.
• rank-product library and program: Find the rank product of a data set.
• rbr programs: Mask nucleotide (EST) sequences in Fasta format
• RNAdesign library and program: Multi-target RNA sequence design
• RNAdraw library and program: Draw RNA secondary structures
• RNAFold library and programs: RNA secondary structure prediction
• RNAFoldProgs programs: RNA secondary structure folding
• RNAlien library and programs: Unsupervized construction of RNA family models
• RNAwolf library and programs: RNA folding with non-canonical basepairs and base-triplets.
• samtools library and program: Binding to the C samtools library
• samtools-conduit library and program: Conduit interface to SAM/BAM format files through samtools
• samtools-enumerator library: Enumerator interface to SamTools library
• samtools-iteratee library and program: Iteratee interface to SamTools library
• SelectSequencesFromMSA library and program: Selects a representative subset of sequences from multiple sequence alignment.
• seqloc library and test: Handle sequence locations for bioinformatics
• seqloc-datafiles library, programs and tests: Read and write BED and GTF format genome annotations
• sequence-formats library and test: A package with basic parsing utilities for several Bioinformatic data formats.
• sequenceTools library, programs and test: A package with tools for processing DNA sequencing data
• sgrep program: Sgrep - grep Fasta files for sequences matching a regular expression
• simseq program: Simulate sequencing with different models for priming and errors
• slynx library and program: Handle molecular sequences
• smiles library and tests
• StockholmAlignment library: Libary for Stockholm aligmnent format
• subsample library and program: Subsample data.
• Taxonomy library: Libary for parsing, processing and vizualization of taxonomy data
• TaxonomyTools programs: Tool for parsing, processing, comparing and visualizing taxonomy data
• tex-join-bib library and program: Compile separate tex files with the same bibliography.
• tlynx library and program: Handle phylogenetic trees
• too-many-cells library and program: Cluster single cells and analyze cell clade relationships.
• trimpolya program: Search for, annotate and trim poly-A tail
• twobitreader library and program: reader for the 2bit file format
• varan programs: Process mpileup output to identify significant differences
• vcf library and test: A package to parse VCF files inspired in similar python libraries
• ViennaRNA-bindings library and test: ViennaRNA v2 bindings
• ViennaRNA-extras library and test: ViennaRNA v2 extensions
• ViennaRNAParser library and test: Libary for parsing ViennaRNA package output
• xml2x program: Convert BLAST output in XML format to CSV or HTML
• xsact programs: Cluster EST sequences
• zsyntax library and test: Automated theorem prover for the Zsyntax biochemical calculus

Bit

• bitfield library and test: Generic and easy to use haskell bitfields
• bits-extra library, tests and benchmark: Useful bitwise operations
• bits-show library and test: Showing data as strings of 0 and 1
• hw-balancedparens library, program, tests and benchmark: Balanced parentheses
• hw-bits library, tests and benchmark: Bit manipulation
• hw-dump library, program, tests and benchmark: File Dump
• hw-rankselect library, program, tests and benchmark: Rank-select
• hw-rankselect-base library, tests and benchmark: Rank-select base
• hw-simd library, tests and benchmark: SIMD library
• hw-simd-cli library, program and test: SIMD library
• hw-string-parse library and tests: String parser

Bit Vectors

• bit-array library and test: A bit array (aka bitset, bitmap, bit vector) API for numeric types
• bit-vector library and test: Simple bit vectors for Haskell
• bitvec library, test and benchmark: Space-efficient bit vectors
• bitwise library, test and benchmark: fast multi-dimensional unboxed bit packed Bool arrays
• boolector library and tests: Haskell bindings for the Boolector SMT solver
• bv library and program: Bit-vector arithmetic library
• bv-little library, test and benchmarks: Efficient little-endian bit vector library
• bv-sized library and test: a bitvector datatype that is parameterized by the vector width
• bv-sized-lens library: Well-typed lenses for bv-sized bitvectors.
• hz3 library, program and test: Bindings for the Z3 Theorem Prover
• sbv library, tests and benchmark: SMT Based Verification: Symbolic Haskell theorem prover using SMT solving.
• sbv-program library and test: Component-based program synthesis using SBV
• z3 library, program and test: Bindings for the Z3 Theorem Prover

Bitcoin

• bitcoin-hs library and test: Partial implementation of the Bitcoin protocol (as of 2013)
• bitcoin-payment-channel library, test and benchmark: Instant, two-party Bitcoin payments
• bitcoin-rpc library and test: Library to communicate with the Satoshi Bitcoin daemon
• bitx-bitcoin library and tests: A Haskell library for working with the BitX bitcoin exchange.
• btc-lsp library, programs and test: Lightning service provider
• clplug library and test: Easily add functionality to your lightning node
• electrs-client library and test: Electrs client library for Haskell
• haskoin library and test: Implementation of the Bitcoin protocol.
• haskoin-core library and test: Bitcoin & Bitcoin Cash library for Haskell
• haskoin-crypto library and test: Implementation of Bitcoin cryptographic primitives.
• haskoin-node library and test: P2P library for Bitcoin and Bitcoin Cash
• haskoin-protocol library and test: Implementation of the Bitcoin network protocol messages
• haskoin-script library and test: Implementation of Bitcoin script parsing and evaluation
• haskoin-store library, program and test: Storage and index for Bitcoin and Bitcoin Cash
• haskoin-store-data library and test: Data for Haskoin Store
• haskoin-util library and test: Utility functions for the Network.Haskoin project
• haskoin-wallet library, programs and test: Implementation of a Bitcoin SPV Wallet with BIP32 and multisig support.
• lnd-client library, program and test: Lightning Network Daemon (LND) client library for Haskell
• SCRIPTWriter library and program: ESCRIPT: a human friendly language for programming Bitcoin scripts

Bits

• bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

Blockchain

• blockchain library and test: Generic blockchain implementation.
• cleveland library and test: Testing framework for Morley.
• dfinity-radix-tree library, program and test: A generic data integrity layer.
• morley-client library, program and test: Client to interact with the Tezos blockchain
• utxorpc library: Generated code for a gRPC interface for UTxO Blockchains
• utxorpc-client library, programs and test: An SDK for clients of the UTxO RPC specification.
• utxorpc-server library, program and test: An SDK for UTxO RPC services.

Blog

• blagda library and program: Shake frontend for Agda blogging

Book

• algebra-driven-design library: Companion library for the book Algebra-Driven Design by Sandy Maguire

Browser

• diohsc program: Gemini client
• GoogleSuggest library: Interface to Google Suggest API
• hbro library and program: Minimal extensible web-browser
• hbro-contrib library and program: Third-party extensions to hbro.
• manatee-browser library and program: Browser extension for Manatee.
• web-browser-in-haskell library: Web Browser In Haskell
• webdriver library: a Haskell client for the Selenium WebDriver protocol
• webdriver-snoy library and test: a Haskell client for the Selenium WebDriver protocol (deprecated)
• webdriver-wrapper library: Wrapper around the webdriver package that automatically manages Selenium

BSD

• bsd-sysctl library: Access to the BSD sysctl(3) interface

BSD3

• co-log-effectful library and test: effectful log effect using co-log-core
• easytensor-vulkan library: Use easytensor with vulkan-api.
• haskell-src-exts-sc library and program: Pretty print haskell code with comments
• hinfo library, program and test: Command Line App With Info on your Haskell App
• HNumeric library and test: Haskell Numeric Library with pure functionality, R & MATLAB Syntax.
• io-embed library and test: Use Template Haskell to embed the result of an IO computation.
• katip-effectful library and test: Katip integration for Effectful
• polysemy-keyed-state library and test: Effect for a set of stateful values indexed by a type of keys
• tasty-grading-system library: Grade your tasty-testsuite.
• vulkan-api library: Low-level low-overhead vulkan api bindings

Bsparse

• bsparse library: A simple unassuming parser for bytestring

Build

• chs-cabal library: Cabal with c2hs dependencies
• dependency library, test and benchmark: Dependency resolution for package management
• Grow library: A declarative make-like interpreter.
• hix library, program and test: Haskell/Nix development build tools
• language-ninja library, programs and tests: A library for dealing with the Ninja build language.
• neko-lib library and test: Neko VM code generation and disassembly library
• shake-ats library: Utilities for building ATS projects with shake
• shake-futhark library: Dependency tracking for Futhark
• uniform-shake library: uniform wrapper for shake
• up-grade program: Software management tool

Build Tool

• bazel-coverage-report-renderer program: HTML Coverage Reports for Rules_Haskell
• bazel-runfiles library and program: Locate Bazel runfiles location
• elm-make program: A build tool for Elm projects

Builders

• bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
• text-builder library, test and benchmarks: Efficient strict text builder
• text-builder-dev library, test and benchmarks: Edge of developments for "text-builder"

Building

• boilerplate library, program and test: Generate Haskell boilerplate.
• ghcflags library: Dump the ghc flags during compilation
• hsinspect library and program: Inspect Haskell source files.
• hsinspect-lsp library, program and test: LSP interface over the hsinspect binary.
• stack2cabal library and program: Convert stack projects to cabal.project + cabal.project.freeze
• stackage-to-hackage library and program: Convert stack.yaml to cabal.project + cabal.project.freeze

Bundle

• asset-bundle library: A build-time Cabal library that bundles executables with assets
• cabal-auto-expose library: Build time library that autodetects exposed modules

Business

• bookkeeping library and tests: A module for bookkeeping by double entry.
• bookkeeping-jp library and tests: Helper functions for Japanese bookkeeping.
• docusign-base library: Low-level bindings to the DocuSign API
• docusign-base-minimal library: Low-level bindings to the DocuSign API (only what is necessary for docusign-client)
• docusign-client library: Client bindings for the DocuSign API
• docusign-example program: DocuSign examples
• ochintin-daicho library and tests: A module to manage payroll books for Japanese companies.
• work-time library and program: A library for parsing a chat-based work hour reporting scheme.

Bytes

• bit-protocol library and test: Encode binary protocols with some odd bit numbers into a bytestring

ByteString

• bytestring-strict-builder library, test and benchmark: An efficient strict bytestring builder
• bytestring-tree-builder library, test and benchmark: A very efficient ByteString builder implementation based on the binary tree
• ListLike library and test: Generalized support for list-like structures
• pathological-bytestrings library: Pathological ByteStrings for testing
• streamly-bytestring library, test and benchmark: Library for streamly and bytestring interoperation.
• stringable library: A Stringable type class, in the spirit of Foldable and Traversable
• type-level-bytestrings library and test: Tools for manipulating type-level bytes and bytestrings

ByteStrings

• base58-bytestring library, test and benchmark: Implementation of BASE58 transcoding for ByteStrings

BZip

• bzip-signature library: Backpack signature for BZip compression

C

• C-structs library and tests: C-Structs implementation for Haskell
• cdeps library, program, test and benchmark: Extract dependencies from C code.
• cpkg library, program and test: Build tool for C
• gmpint library: GMP integer conversions
• shake-c library: Library for building C code with shake
• zbar library: zbar bindings in Haskell

C#

• tree-sitter-c-sharp library: Tree-sitter grammar/parser for C#

Cabal

• ats-setup library: ATS scripts for Cabal builds
• autopack library: Custom Setup to automate package modules discovery
• chs-cabal library: Cabal with c2hs dependencies
• policeman library, program and test: Haskell PVP version adviser

Cache

• cache library and test: An in-memory key/value store with expiration support
• cache-polysemy library and test: cached hashmaps
• fcache library and test: Cache a function (a -> b)
• polling-cache library and test: Cache infrequently updated data for simpler distributed systems.
• rediscaching-haxl library: Combine redis caching and haxl.

Caching

• expiring-cache-map library and tests: General purpose simple caching.

CAPTCHA

• antigate library: Interface for antigate.com captcha recognition API

Cardano

• blockfrost-api library and test: API definitions for blockfrost.io
• blockfrost-client library, program and test: blockfrost.io basic client
• blockfrost-client-core library: blockfrost.io common client definitions / instances
• cardano-coin-selection library and test: Algorithms for coin selection and fee balancing.
• cardano-transactions library, program and test: Library utilities for constructing and signing Cardano transactions.
• utxorpc library: Generated code for a gRPC interface for UTxO Blockchains
• utxorpc-client library, programs and test: An SDK for clients of the UTxO RPC specification.
• utxorpc-server library, program and test: An SDK for UTxO RPC services.

Cast

• type-iso library: Typeclasses for injective relations and isomorphisms between types.

Categories

• dualizer library: Automatically generate dual constructions.
• groupoids library: This package has been absorbed into semigroupoids 4.0
• hyperfunctions library: Hyperfunctions
• kindly-functors library and test: A category polymorphic `Functor` typeclass
• monoidal-functors library and program: Monoidal Functors Library
• profunctor-extras library: This package has been absorbed into profunctors 4.0
• profunctors library: Profunctors
• representable-profunctors library: This package has been absorbed into profunctor-extras.
• subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
• thrist library: Type-threaded list

Category

• free-category library, test and benchmark: efficient data types for free categories and arrows
• oalg-abg library and test: Finitely generated abelian groups.
• oalg-base library and test: ...
• product-profunctors library, test and benchmark: product-profunctors

Catgirls

• nekos-best library: Unofficial nekos.best API wrapper

CGI

• cgi-utils library: Simple modular utilities for CGI/FastCGI (sessions, etc.)

Chaos Music

• AlgoRhythm library, program and test: Algorithmic music composition

Charts

• chart-unit library and test: Native haskell charts.
• Histogram library
• interval-patterns library and test: Intervals, and monoids thereof
• plotlyhs library: Haskell bindings to Plotly.js
• textPlot library: Plot functions in text.

Chat

• matterhorn library, program and test: Terminal client for the Mattermost chat system
• simplexmq library, programs and test: SimpleXMQ message broker

Chemistry

• ConClusion library and program: Cluster algorithms, PCA, and chemical conformere analysis
• hall-symbols library and tests: Symmetry operations generater of Hall Symbols
• isotope library and test: Isotopic masses and relative abundances.
• matrix-as-xyz library and tests: Read and Display Jones-Faithful notation for spacegroup and planegroup
• radium library and test: Chemistry
• radium-formula-parser library and test: Chemistry
• science-constants library: Mathematical/physical/chemical constants
• science-constants-dimensional library: Mathematical/physical/chemical constants
• seitz-symbol library and tests: Read and Display Seitz Symbol
• significant-figures library, program and test: Calculate expressions involving significant figures.
• symmetry-operations-symbols library and tests: Derivation of symbols and coordinate triplets Library

CHs

• chs-deps library, test and benchmark: c2hs dependency analyzer

CI

• hercules-ci-agent library, programs and test: Runs Continuous Integration tasks on your machines
• hercules-ci-api-agent library and test: API definition for Hercules CI Agent to talk to hercules-ci.com or Hercules CI Enterprise
• hercules-ci-api-core library: Types and convenience modules use across Hercules CI API packages
• hercules-ci-cnix-expr library and test: Bindings for the Nix evaluator
• packcheck library, test and benchmark: Universal build and CI testing for Haskell packages

Classes

• closed-classes library: Closed type class declarations

Classification

• HasGP library: A Haskell library for inference using Gaussian processes
• hslibsvm library: A FFI binding to libsvm.
• HSvm library: Haskell Bindings for libsvm
• liblinear-enumerator library: liblinear iteratee.

Clckwrks

• clckwrks library: A secure, reliable content management system (CMS) and blogging platform
• clckwrks-cli library and program: a command-line interface for adminstrating some aspects of clckwrks
• clckwrks-dot-com programs: clckwrks.com
• clckwrks-plugin-bugs library: bug tracking plugin for clckwrks
• clckwrks-plugin-ircbot library: ircbot plugin for clckwrks
• clckwrks-plugin-mailinglist library: mailing list plugin for clckwrks
• clckwrks-plugin-media library: media plugin for clckwrks
• clckwrks-plugin-page library: support for CMS/Blogging in clckwrks
• clckwrks-plugin-redirect library and program: support redirects for CMS/Blogging in clckwrks
• clckwrks-theme-bootstrap library: simple bootstrap based template for clckwrks
• clckwrks-theme-clckwrks library: simple bootstrap based template for clckwrks
• clckwrks-theme-geo-bootstrap library: geo bootstrap based template for clckwrks

CLI

• bunz library, program and test: CLI tool to beautify JSON string.
• bytepatch library, program and test: Patch byte-representable data in a bytestream
• cli library and program: CLI
• cli-arguments library: A library to process command line arguments in some more convenient way.
• cli-arguments-strict library: A library to process command line arguments in some more convenient way.
• codeforces-cli library and program: Command line interface to interact with Codeforces.
• commander-cli library, program and test: A command line argument/option parser library
• dobutok library: Creates the time intervals for CLI changing messages on the screen.
• dobutokO library: The library is intended to print updated messages on the terminal screen.
• docrecords library and test: Vinyl-based records with hierarchical field names, default values and documentation
• ethereum-analyzer-cli library and programs: A CLI frontend for ethereum-analyzer.
• extensioneer program: Inspect extensions in cabal and hpack files
• file-templates program: Use templates for files and directories
• gen-passwd program: Create wordlist-based passwords easily
• gli library, program and test: Tiny cli to fetch PR info from gitlab
• harg library and tests: Haskell program configuration using higher kinded data
• hastily library, program and test: A program to download subtitle files.
• hb3sum program: A command line tool to compute BLAKE3 hashes.
• herms program: A command-line manager for delicious kitchen recipes
• hifi library, program and test: WiFi connection script generator
• hinfo library, program and test: Command Line App With Info on your Haskell App
• hinit library, program and test: Generic project initialization tool
• hsendxmpp program: sendxmpp clone, sending XMPP messages via CLI
• intel-powermon program: Poll modern Intel/AMD CPU power consumption on Linux via RAPL.
• iris library and test: Haskell CLI framework
• jot program: Tiny markdown notebook
• life-sync library, program and test: Synchronize personal configs across multiple machines.
• mit-3qvpPyAi6mH library and program: A git wrapper with a streamlined UX
• mmark-cli program: Command line interface to the MMark markdown processor
• morpheus-graphql-cli program and test: Morpheus GraphQL CLI
• morpheus-graphql-code-gen library and program: Morpheus GraphQL CLI
• morpheus-graphql-code-gen-utils library: Morpheus GraphQL CLI
• neolua program: A CLI adapter to map Lua's CLI to Neovim's CLI for lua interpretation.
• optima library and test: Simple command line interface arguments parser
• optparse-applicative library and test: Utilities and combinators for parsing command line options
• optparse-applicative-cmdline-util library: Utility functions for working with optparse-applicative
• optparse-applicative-simple library and test: Simple command line interface arguments parser
• optparse-enum library: An enum-text based toolkit for optparse-applicative
• optparse-version library
• optstream library and test: Command line option parsing library with a twice applicative interface
• otp-authenticator library and program: OTP Authenticator (a la google) command line client
• pinboard-notes-backup program: Back up the notes you've saved to Pinboard
• platinum-parsing library, program and test: General Framework for compiler development.
• ploton library, program and test: A useful cli tool to draw figures
• rob library, program and test: Simple projects generator
• summoner library, program and test: ...
• symantic-cli library: Symantics for parsing and documenting a CLI
• tasklite program and test: CLI task / todo list manager with SQLite backend
• tasklite-core library, test and benchmark: CLI task / todo list manager with SQLite backend
• tldr library, program and test: Haskell tldr client
• translate-cli library, program and test: Translation cli tool
• trial-optparse-applicative library: Trial helper functions for optparse-applicative
• unused library, program and test: A command line tool to identify unused code.
• yiyd program and test

CLI Tool

• airgql library, program and test: Automatically generate a GraphQL API for an SQLite database
• eddie program: Command line file filtering with haskell
• git-cuk library and program: Haskell Git Helper Tool
• hit-on library, program and test: Haskell Git Helper Tool
• life-sync library, program and test: Synchronize personal configs across multiple machines.
• smh library, program and test: String manipulation tool written in haskell
• summoner library, program and test: ...

ClickHouse

• ClickHaskell library: ClickHouse driver

Client

• approveapi library and test: ApproveAPI Haskell Client
• hs-tango library and benchmarks: Bindings to the Tango Controls system
• jobqueue library and test: A job queue library
• morpheus-graphql-client library and test: Morpheus GraphQL Client
• redis-job-queue library: Simple priority job queue backed by Redis.
• scidb-hquery library and program: Haskell query for SciDB via shim
• stomp-conduit library: Stompl Conduit Client
• stomp-patterns library: Stompl MOM Stomp Patterns
• stomp-queue library: Stompl Client Library

Clipboard

• helic library, program and test: Clipboard Manager

Closure

• static library and tests: Type-safe and interoperable static values and closures

Cloud

• amazonka-iam-policy library and tests: Amazon IAM Policy Document DSL and Combinators.
• amazonka-s3-streaming library and program: Provides conduits to upload data to S3 using the Multipart API
• api-tools library, programs, test and benchmark: DSL for generating API boilerplate and docs
• arion-compose library, program and test: Run docker-compose with help from Nix/NixOS
• aws library, programs and tests: Amazon Web Services (AWS) for Haskell
• aws-arn library and test: Types and optics for manipulating Amazon Resource Names (ARNs)
• aws-cloudfront-signed-cookies library, program and test: Generate signed cookies for AWS CloudFront
• aws-cloudfront-signer library: For signing AWS CloudFront HTTP URL requests
• aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
• aws-ec2 library and programs: AWS EC2/VPC, ELB and CloudWatch client library for Haskell
• aws-elastic-transcoder library, program and test: Haskell suite for the Elastic Transcoder service
• aws-general library and test: Bindings for Amazon Web Services (AWS) General Reference
• aws-kinesis library and test: Bindings for Amazon Kinesis
• aws-kinesis-client library and program: A producer & consumer client library for AWS Kinesis
• aws-kinesis-reshard library and program: Reshard AWS Kinesis streams in response to Cloud Watch metrics
• aws-lambda library: Haskell bindings for AWS Lambda
• aws-performance-tests library and program: Performance Tests for the Haskell bindings for Amazon Web Services (AWS)
• aws-sdk library and test: AWS SDK for Haskell
• aws-sign4 library and test: Amazon Web Services (AWS) Signature v4 HTTP request signer
• aws-sns library and test: Bindings for AWS SNS Version 2013-03-31
• aws-sns-verify library and test: Parse and verify AWS SNS messages
• azure-functions-worker library and test: Azure Functions Worker
• backblaze-b2-hs library, program and test: A client library to access Backblaze B2 cloud storage in Haskell.
• cloud-seeder library and test: A tool for interacting with AWS CloudFormation
• firebase-database library, test and benchmark: Google Firebase Database SDK
• gogol library: Comprehensive Google Services SDK.
• gogol-abusiveexperiencereport library: Google Abusive Experience Report SDK.
• gogol-acceleratedmobilepageurl library: Google Accelerated Mobile Pages (AMP) URL SDK.
• gogol-accessapproval library: Google Access Approval SDK.
• gogol-accesscontextmanager library: Google Access Context Manager SDK.
• gogol-adexchange-buyer library: Google Ad Exchange Buyer SDK.
• gogol-adexchange-seller library: Google Ad Exchange Seller SDK.
• gogol-adexchangebuyer2 library: Google Ad Exchange Buyer API II SDK.
• gogol-adexperiencereport library: Google Ad Experience Report SDK.
• gogol-admin-datatransfer library: Google Admin Data Transfer SDK.
• gogol-admin-directory library: Google Admin Directory SDK.
• gogol-admin-emailmigration library: Google Email Migration API v2 SDK.
• gogol-admin-reports library: Google Admin Reports SDK.
• gogol-adsense library: Google AdSense Management SDK.
• gogol-adsense-host library: Google AdSense Host SDK.
• gogol-affiliates library: Google Affiliate Network SDK.
• gogol-alertcenter library: Google G Suite Alert Center SDK.
• gogol-analytics library: Google Analytics SDK.
• gogol-analyticsreporting library: Google Analytics Reporting SDK.
• gogol-android-enterprise library: Google Play EMM SDK.
• gogol-android-publisher library: Google Play Developer SDK.
• gogol-androiddeviceprovisioning library: Google Android Device Provisioning Partner SDK.
• gogol-androidmanagement library: Google Android Management SDK.
• gogol-appengine library: Google App Engine Admin SDK.
• gogol-apps-activity library: Google Drive Activity SDK.
• gogol-apps-calendar library: Google Calendar SDK.
• gogol-apps-licensing library: Google Enterprise License Manager SDK.
• gogol-apps-reseller library: Google Enterprise Apps Reseller SDK.
• gogol-apps-tasks library: Google Tasks SDK.
• gogol-appstate library: Google App State SDK.
• gogol-autoscaler library: Google Compute Engine Autoscaler SDK.
• gogol-bigquery library: Google BigQuery SDK.
• gogol-bigquerydatatransfer library: Google BigQuery Data Transfer SDK.
• gogol-bigtableadmin library: Google Cloud Bigtable Admin SDK.
• gogol-billing library: Google Cloud Billing SDK.
• gogol-binaryauthorization library: Google Binary Authorization SDK.
• gogol-blogger library: Google Blogger SDK.
• gogol-books library: Google Books SDK.
• gogol-chat library: Google Hangouts Chat SDK.
• gogol-civicinfo library: Google Civic Information SDK.
• gogol-classroom library: Google Classroom SDK.
• gogol-cloudasset library: Google Cloud Asset SDK.
• gogol-clouderrorreporting library: Google Stackdriver Error Reporting SDK.
• gogol-cloudfunctions library: Google Cloud Functions SDK.
• gogol-cloudidentity library: Google Cloud Identity SDK.
• gogol-cloudiot library: Google Cloud IoT SDK.
• gogol-cloudkms library: Google Cloud Key Management Service (KMS) SDK.
• gogol-cloudmonitoring library: Google Cloud Monitoring SDK.
• gogol-cloudprivatecatalog library: Google Cloud Private Catalog SDK.
• gogol-cloudprivatecatalogproducer library: Google Cloud Private Catalog Producer SDK.
• gogol-cloudprofiler library: Google Stackdriver Profiler SDK.
• gogol-cloudscheduler library: Google Cloud Scheduler SDK.
• gogol-cloudsearch library: Google Cloud Search SDK.
• gogol-cloudshell library: Google Cloud Shell SDK.
• gogol-cloudtasks library: Google Cloud Tasks SDK.
• gogol-cloudtrace library: Google Stackdriver Trace SDK.
• gogol-commentanalyzer library: Google Perspective Comment Analyzer SDK.
• gogol-composer library: Google Cloud Composer SDK.
• gogol-compute library: Google Compute Engine SDK.
• gogol-consumersurveys library: Google Consumer Surveys SDK.
• gogol-container library: Google Kubernetes Engine SDK.
• gogol-containeranalysis library: Google Container Analysis SDK.
• gogol-containerbuilder library: Google Cloud Build SDK.
• gogol-core library and test: Core data types and functionality for Gogol libraries.
• gogol-customsearch library: Google CustomSearch SDK.
• gogol-dataflow library: Google Dataflow SDK.
• gogol-datafusion library: Google Cloud Data Fusion SDK.
• gogol-dataproc library: Google Cloud Dataproc SDK.
• gogol-datastore library: Google Cloud Datastore SDK.
• gogol-debugger library: Google Stackdriver Debugger SDK.
• gogol-deploymentmanager library: Google Cloud Deployment Manager SDK.
• gogol-dfareporting library: Google DCM/DFA Reporting And Trafficking SDK.
• gogol-dialogflow library: Google Dialogflow SDK.
• gogol-digitalassetlinks library: Google Digital Asset Links SDK.
• gogol-discovery library: Google API Discovery Service SDK.
• gogol-dlp library: Google Cloud Data Loss Prevention (DLP) SDK.
• gogol-dns library: Google Cloud DNS SDK.
• gogol-docs library: Google Docs SDK.
• gogol-doubleclick-bids library: Google DoubleClick Bid Manager SDK.
• gogol-doubleclick-search library: Google DoubleClick Search SDK.
• gogol-drive library: Google Drive SDK.
• gogol-driveactivity library: Google Drive Activity SDK.
• gogol-factchecktools library: Google Fact Check Tools SDK.
• gogol-file library: Google Cloud Filestore SDK.
• gogol-firebase-dynamiclinks library: Google Firebase Dynamic Links SDK.
• gogol-firebase-rules library: Google Firebase Rules SDK.
• gogol-firebasehosting library: Google Firebase Hosting SDK.
• gogol-firebaseremoteconfig library: Google Firebase Remote Config SDK.
• gogol-firestore library: Google Cloud Firestore SDK.
• gogol-fitness library: Google Fitness SDK.
• gogol-fonts library: Google Fonts Developer SDK.
• gogol-freebasesearch library: Google Freebase Search SDK.
• gogol-fusiontables library: Google Fusion Tables SDK.
• gogol-games library: Google Play Game Services SDK.
• gogol-games-configuration library: Google Play Game Services Publishing SDK.
• gogol-games-management library: Google Play Game Services Management SDK.
• gogol-genomics library: Google Genomics SDK.
• gogol-gmail library: Google Gmail SDK.
• gogol-groups-migration library: Google Groups Migration SDK.
• gogol-groups-settings library: Google Groups Settings SDK.
• gogol-healthcare library: Google Cloud Healthcare SDK.
• gogol-iam library: Google Identity and Access Management (IAM) SDK.
• gogol-iamcredentials library: Google IAM Service Account Credentials SDK.
• gogol-iap library: Google Cloud Identity-Aware Proxy SDK.
• gogol-identity-toolkit library: Google Identity Toolkit SDK.
• gogol-indexing library: Google Indexing SDK.
• gogol-jobs library: Google Cloud Talent Solution SDK.
• gogol-kgsearch library: Google Knowledge Graph Search SDK.
• gogol-language library: Google Cloud Natural Language SDK.
• gogol-latencytest library: Google Cloud Network Performance Monitoring SDK.
• gogol-libraryagent library: Google Library Agent SDK.
• gogol-logging library: Google Stackdriver Logging SDK.
• gogol-manufacturers library: Google Manufacturer Center SDK.
• gogol-maps-coordinate library: Google Maps Coordinate SDK.
• gogol-maps-engine library: Google Maps Engine SDK.
• gogol-mirror library: Google Mirror SDK.
• gogol-ml library: Google Cloud Machine Learning Engine SDK.
• gogol-monitoring library: Google Stackdriver Monitoring SDK.
• gogol-oauth2 library: Google OAuth2 SDK.
• gogol-oslogin library: Google Cloud OS Login SDK.
• gogol-pagespeed library: Google PageSpeed Insights SDK.
• gogol-partners library: Google Partners SDK.
• gogol-people library: Google People SDK.
• gogol-photoslibrary library: Google Photos Library SDK.
• gogol-play-moviespartner library: Google Play Movies Partner SDK.
• gogol-playcustomapp library: Google Play Custom App Publishing SDK.
• gogol-plus library: Google + SDK.
• gogol-plus-domains library: Google + Domains SDK.
• gogol-poly library: Google Poly SDK.
• gogol-prediction library: Google Prediction SDK.
• gogol-proximitybeacon library: Google Proximity Beacon SDK.
• gogol-pubsub library: Google Cloud Pub/Sub SDK.
• gogol-qpxexpress library: Google QPX Express SDK.
• gogol-redis library: Google Cloud Memorystore for Redis SDK.
• gogol-remotebuildexecution library: Google Remote Build Execution SDK.
• gogol-replicapool library: Google Replica Pool SDK.
• gogol-replicapool-updater library: Google Compute Engine Instance Group Updater SDK.
• gogol-resourcemanager library: Google Cloud Resource Manager SDK.
• gogol-resourceviews library: Google Compute Engine Instance Groups SDK.
• gogol-run library: Google Cloud Run SDK.
• gogol-runtimeconfig library: Google Cloud Runtime Configuration SDK.
• gogol-safebrowsing library: Google Safe Browsing SDK.
• gogol-script library: Google Apps Script SDK.
• gogol-searchconsole library: Google Search Console URL Testing Tools SDK.
• gogol-securitycenter library: Google Cloud Security Command Center SDK.
• gogol-servicebroker library: Google Service Broker SDK.
• gogol-serviceconsumermanagement library: Google Service Consumer Management SDK.
• gogol-servicecontrol library: Google Service Control SDK.
• gogol-servicemanagement library: Google Service Management SDK.
• gogol-servicenetworking library: Google Service Networking SDK.
• gogol-serviceusage library: Google Service Usage SDK.
• gogol-serviceuser library: Google Service User SDK.
• gogol-sheets library: Google Sheets SDK.
• gogol-shopping-content library: Google Content API for Shopping SDK.
• gogol-siteverification library: Google Site Verification SDK.
• gogol-slides library: Google Slides SDK.
• gogol-sourcerepo library: Google Cloud Source Repositories SDK.
• gogol-spanner library: Google Cloud Spanner SDK.
• gogol-spectrum library: Google Spectrum Database SDK.
• gogol-speech library: Google Cloud Speech-to-Text SDK.
• gogol-sqladmin library: Google Cloud SQL Admin SDK.
• gogol-storage library: Google Cloud Storage JSON SDK.
• gogol-storage-transfer library: Google Storage Transfer SDK.
• gogol-streetviewpublish library: Google Street View Publish SDK.
• gogol-surveys library: Google Surveys SDK.
• gogol-tagmanager library: Google Tag Manager SDK.
• gogol-taskqueue library: Google TaskQueue SDK.
• gogol-testing library: Google Cloud Testing SDK.
• gogol-texttospeech library: Google Cloud Text-to-Speech SDK.
• gogol-toolresults library: Google Cloud Tool Results SDK.
• gogol-tpu library: Google Cloud TPU SDK.
• gogol-tracing library: Google Tracing SDK.
• gogol-translate library: Google Cloud Translation SDK.
• gogol-urlshortener library: Google URL Shortener SDK.
• gogol-useraccounts library: Google Cloud User Accounts SDK.
• gogol-vault library: Google G Suite Vault SDK.
• gogol-videointelligence library: Google Cloud Video Intelligence SDK.
• gogol-vision library: Google Cloud Vision SDK.
• gogol-webmaster-tools library: Google Search Console SDK.
• gogol-websecurityscanner library: Google Web Security Scanner SDK.
• gogol-youtube library: Google YouTube Data SDK.
• gogol-youtube-analytics library: Google YouTube Analytics SDK.
• gogol-youtube-reporting library: Google YouTube Reporting SDK.
• groot library, program and test: Command line utility to manage AWS ECS resources
• hadoop-streaming library and test: A simple Hadoop streaming library
• hdo library and program: A Digital Ocean client in Haskell
• hetzner library, program and test: Hetzner Cloud and DNS library.
• kerry library and test: Manage and abstract your packer configurations.
• linode library and test: Bindings to the Linode API
• loup library and programs: Amazon Simple Workflow Service Wrapper for Work Pools.
• micro-gateway library and program: A Micro service gateway.
• porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
• pubnub library, programs and test: PubNub Haskell SDK
• push-notify library: A server-side library for sending push notifications.
• push-notify-apn library, program and test: Send push notifications to mobile iOS devices
• push-notify-ccs library: ...
• push-notify-general library: A general library for sending/receiving push notif. through dif. services.
• scheduling library and program: An interview scheduler using constraint satisfaction and Google Sheets
• serverless-haskell library and test: Deploying Haskell code onto AWS Lambda using Serverless
• stratosphere library, programs and test: EDSL for AWS CloudFormation
• wai-handler-hal library and test: Wrap WAI applications to run on AWS Lambda
• wolf library and programs: Amazon Simple Workflow Service Wrapper.

Cloud Haskell

• distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
• distributed-process-systest library: Cloud Haskell Test Support
• distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
• distributed-process-tests library and tests: Tests and test support tools for distributed-process.
• distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.

CLR

• clr-bindings library and test: Glue between clr-host and clr-typed
• clr-host library and test: Hosting the Common Language Runtime
• clr-inline library, test and benchmark: Quasiquoters for inline C# and F#
• clr-marshal library: Marshaling for the clr
• clr-typed library and test: A strongly typed Haskell interface to the CLR type system
• clr-win-linker program: A GHC linker wrapper tool to workaround a GHC >8.2 bug

Clustering

• gsc-weighting library: Generic implementation of Gerstein/Sonnhammer/Chothia weighting.
• hieraclus library: Automated clustering of arbitrary elements in Haskell.
• hierarchical-clustering library and test: Fast algorithms for single, average/UPGMA and complete linkage clustering.
• hierarchical-clustering-diagrams library and test: Draw diagrams of dendrograms made by hierarchical-clustering.
• hps-kmeans library: A nice implementation of the k-Means algorithm.
• hsgsom library: An implementation of the GSOM clustering algorithm.
• kmeans library: K-means clustering algorithm

CmdLineArgs

• uniform-cmdLineArgs library: a convenient handling of command line arguments

Code Competitions

• competition library: Helpers and runners for code competitions

Code Generation

• bond library, program and test: Bond schema compiler and code generator
• dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
• elminator library and test: Generate ELM types/encoders/decoders from Haskell types.
• flexible-defaults library: Generate default function implementations for complex type classes.
• harpy library: Runtime code generation for x86 machine code
• haskell-generate library and test: Typesafe generation of haskell source code
• hasktorch-codegen library, program and test: Code generation tools for Hasktorch
• hburg program: Haskell Bottom Up Rewrite Generator
• llvm library: Bindings to the LLVM compiler toolkit.
• llvm-base library: FFI bindings to the LLVM compiler toolkit.
• llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
• llvm-dsl library and test: Support for writing an EDSL with LLVM-JIT as target
• llvm-extension library and program: Processor specific intrinsics for the llvm interface
• llvm-extra library, program and test: Utility functions for the llvm interface
• llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
• llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
• llvm-general library and test: General purpose LLVM bindings
• llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
• llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
• llvm-hs library and test: General purpose LLVM bindings
• llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
• llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
• llvm-party library and test: General purpose LLVM bindings
• llvm-pkg-config program: Generate Pkg-Config configuration file for LLVM
• llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
• morloc library, program and test: A multi-lingual, typed, workflow language
• passage library: Parallel code generation for hierarchical Bayesian modeling.
• preprocessor-tools library: A framework for extending Haskell's syntax via quick-and-dirty preprocessors
• sugarhaskell programs: Library-based syntactic extensibility for Haskell
• x86-64bit library and test: Runtime code generation for x86 64 bit machine code

Code-Generator

• openapi3-code-generator library, program and test: OpenAPI3 Haskell Client Code Generator

Codec

• AC-PPM library: Trivial package for writing PPM images.
• activitystreams-aeson library: An interface to the ActivityStreams specification
• archive-libarchive library: Common interface using libarchive
• archive-sig library: Backpack signature for archive libraries
• archive-tar library: Common interface using the tar package
• archive-tar-bytestring library: Common interface using the tar-bytestring package
• automitive-cse library and test: Automotive CSE emulation
• automotive-cse library and test: Automotive CSE emulation
• avif library and test: High-level bindings to libavif
• base-encoding library: RFC4648 Binary-to-text encodings (e.g. base64)
• base32-bytestring library, test and benchmark: Fast base32 and base32hex codec for ByteStrings
• base32-z-bytestring library, test and benchmark: Fast z-base32 and z-base32hex codec for ByteStrings
• base64-string library: Base64 implementation for String's.
• base91 library, program and test: A Generic Base91 Encoder & Decoder
• benc library, test and benchmark: Bencode encoding and decoding library
• bgzf library: Blocked GZip
• bidirectional library and test: Simple bidirectional serialization and deserialization
• binary-serialise-cbor library: Yet Another Binary Serialisation Library (compatibility shim)
• bindings-codec2 library and program: Very low-level FFI bindings for Codec2
• bitmaps library: Bitmap library
• bmp library: Read and write uncompressed BMP image files.
• borsh library and test: Implementation of BORSH serialisation
• bottom library, program, test and benchmark: Encoding and decoding for the Bottom spec.
• brotli library and test: Brotli (RFC7932) compression and decompression
• brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
• brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
• bytable library: data from/to ByteString
• bzip2-clib library: bzip2 C sources
• bzlib library and test: Compression and decompression in the bzip2 format
• bzlib-conduit library, test and benchmark: Streaming compression/decompression via conduits.
• bzlib-conduit-jappie library, test and benchmark: Streaming compression/decompression via conduits.
• candid library, program and tests: Candid integration
• cbor-tool program: A tool for manipulating CBOR.
• cborg library and test: Concise Binary Object Representation (CBOR)
• cborg-json library, test and benchmark: A library for encoding JSON as CBOR
• chunky library, program and test: Human-readable storage of text/binary objects.
• cityhash library and test: Bindings to CityHash
• codec-beam library and test: Erlang VM byte code assembler
• Codec-Compression-LZF library: LZF compression bindings.
• codec-mbox library: A library to read and write mailboxes in mbox format
• compression library: Common compression algorithms.
• crockford library: An implementation of Douglas Crockford's base32 encoding.
• Crypto library and tests: Common Cryptographic Algorithms in Pure Haskell
• cryptostore library and test: Serialization of cryptographic data types
• dataenc library and program: Data encoding library
• deunicode program: Get rid of unicode (utf-8) symbols in Haskell sources
• double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]
• DSA library and test: Implementation of DSA, based on the description of FIPS 186-4
• dvorak library and test: Dvorak encoding for Haskell.
• ebml library, program and test: A pure EBML parser
• edf library: EDF parsing library
• embroidery library and program: support for embroidery formats in haskell
• Encode library and programs: Encoding character data
• encoding library and test: A library for various character encodings
• epub-metadata library, program and test: Library for parsing epub document metadata
• exomizer library: Compression and decompression in the exomizer format
• fast-bech32 library, test and benchmark: Fast implementation of the Bech32 encoding format.
• fec library, program and test: Forward error correction of ByteStrings
• ffmpeg-light library and programs: Minimal bindings to the FFmpeg library.
• file-collection library: Provide a uniform interface over file archives and directories
• flac library and test: Complete high-level binding to libFLAC
• flac-picture library and test: Support for writing pictures into FLAC metadata blocks with JuicyPixels
• fountain library: A fountain codec.
• friday-juicypixels library and test: Converts between the Friday and JuicyPixels image types
• gnuidn library and test: Bindings for GNU IDN
• goat library and test: Time Series Compression
• GOST34112012-Hash library and test: Bindings to the GOST R 34.11-2012 hashing implementation
• gray-code library and test: Gray code encoder/decoder.
• hascar library, program and test: Decompress SAPCAR archives
• hcobs library, tests and benchmark: An implementation of the Consistent Overhead Byte Stuffing algorithm
• HCodecs library and test: A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files.
• hecc library: Elliptic Curve Cryptography for Haskell
• hogg library and programs: Library and tools to manipulate the Ogg container format
• hOpenPGP library, test and benchmark: native Haskell implementation of OpenPGP (RFC4880)
• hopenpgp-tools programs: hOpenPGP-based command-line tools
• hopfli library and test: Bidings to Google's Zopfli compression library
• hs-zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
• hstar program: Haskell version of tar CLI utility
• HsYAML-aeson library and program: JSON to YAML Adapter
• htar program: Command-line tar archive utility.
• hw-tar library, program and test: Library for creating and extracting tar archives
• iff library: Constructing and dissecting IFF files
• isobmff library, test and benchmark: A parser and generator for the ISO-14496-12/14 base media file format
• isobmff-builder library, test and benchmark: A (bytestring-) builder for the ISO-14496-12 base media file format
• iteratee-compress library: Enumeratees for compressing and decompressing streams
• jordan library and test: JSON with Structure
• json-directory library and program: Load JSON from files in a directory structure
• json-encoder library: A direct-to-bytes single-pass JSON encoder with a declarative DSL
• jsop library and test: Cherry picking in JSON objects
• JuicyPixels library: Picture loading/serialization (in png, jpeg, bitmap, gif, tga, tiff and radiance)
• JuicyPixels-blp library and program: BLP format decoder/encoder over JuicyPixels library
• lame library and test: A high-level binding to the LAME encoder
• leb128 library, test and benchmark: LEB128 encoding logic for and in Haskell
• leb128-cereal library and tests: LEB128 and SLEB128 encoding
• libarchive program, test and benchmarks: Haskell interface to libarchive
• libarchive-conduit library: Read many archive formats with libarchive and conduit
• libvorbis library: Haskell binding for libvorbis, for decoding Ogg Vorbis audio files
• LibZip library and test: Bindings to libzip, a library for manipulating zip archives.
• list-t-text library and test: A streaming text codec
• logic-TPTP library, programs and test: Import, export etc. for TPTP, a syntax for first-order logic
• lz4 library, test and benchmark: LZ4 compression for ByteStrings
• lz4-conduit library, program and test: LZ4 compression for conduits
• lz4-hs library, test and benchmarks: lz4 bindings for Haskell
• lzip library: Lzip compression / Lzlib bindings
• lzlib library, test and benchmarks: lzlib bindings
• lzma library and test: LZMA/XZ compression and decompression
• lzma-clib : liblzma C library and headers for use by LZMA bindings
• lzma-conduit library and test: Conduit interface for lzma/xz compression.
• lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
• lzma-static test: LZMA/XZ compression and decompression (static)
• lzma-streams library and test: IO-Streams interface for lzma/xz compression
• lzo library, test and benchmark: minilzo bundled for Haskell
• mime library: Working with MIME types.
• mime-string library: MIME implementation for String's.
• mp3decoder program: MP3 decoder for teaching.
• mpg123-bindings library: Mpg132 bindings
• mucipher library: A library to produce simple ciphers for use with lambdabot.
• multihash-serialise library and test: CBOR encoding of multihashes
• multipath library: Parser and builder for unix-path-like objects.
• nano-hmac library: Bindings to OpenSSL HMAC.
• nano-md5 library: Efficient, ByteString bindings to OpenSSL.
• netpbm library, test and benchmark: Loading PBM, PGM, PPM image files
• omnicodec programs: Data encoding and decoding command line utilities
• openpgp-asciiarmor library, test and benchmark: OpenPGP (RFC4880) ASCII Armor codec
• pipes-bgzf library: Blocked GZip
• pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
• pipes-bzip library, test and benchmark: Streaming compression/decompression via pipes.
• pipes-illumina library: Illumina NGS data processing
• pipes-lzma library, program and test: LZMA compressors and decompressors for the Pipes package
• ppm library: a tiny PPM image generator
• proto3-suite library, programs and test: A higher-level API to the proto3-wire library
• proto3-wire library, test and benchmark: A low-level implementation of the Protocol Buffers (version 3) wire format
• pure-zlib library, program, test and benchmark: A Haskell-only implementation of zlib / DEFLATE
• qrcode library: QR Code library in pure Haskell
• qrcode-core library: QR code library in pure Haskell
• quicklz library and test: QuickLZ compression for ByteStrings
• raaz library, program, tests and benchmark: Fast and type safe cryptography.
• rlglue library and programs: A Haskell codec for RL-Glue.
• rot13 library and test: Fast ROT13 cipher for Haskell.
• RSA library and test: Implementation of RSA, using the padding schemes of PKCS#1 v2.1.
• sandi library, test and benchmark: Data encoding library
• serialise library, test and benchmarks: A binary serialisation library for Haskell values.
• sexpr library and program: S-expression printer and parser
• SHA library, programs and test: Implementations of the SHA suite of message digest functions
• shamochu library: “Shuffle and merge overlapping chunks” lossless compression
• shannon-fano library, program and test: Shannon-fano compression algorithm in Haskell
• simple-tar library: Simple, pure, file-system-free reading of tar files
• snappy library and test: Bindings to the Google Snappy library for fast compression/decompression
• snappy-c library, program, test and benchmark: Bindings to Google's Snappy: A fast compression library
• snappy-conduit library: Conduit bindings for Snappy (see snappy package)
• snappy-framing library: Snappy Framing Format in Haskell
• snappy-iteratee library: An enumeratee that uses Google's snappy compression library.
• snappy-lazy library: Lazy bytestring compression and decompression
• sndfile-enumerators library: Audio file reading/writing
• snow-white library: encode any binary instance to white space
• stb-image library: A wrapper around Sean Barrett's JPEG/PNG decoder
• streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
• streaming-lzma library and test: Streaming interface for LZMA/XZ compression
• streaming-png library and program: Perfectly streaming PNG image decoding
• streamly-archive library and test: Stream data from archives using the streamly library.
• streamly-lz4 library, test and benchmark: Streamly combinators for LZ4 compression
• streamly-zip library and test: Stream data from zip archives using the streamly library.
• strict-containers-serialise library: Strict containers - Serialise instances
• tahoe-capabilities library and test: Abstractions related to Tahoe-LAFS "capabilities".
• tar library, test and benchmark: Reading, writing and manipulating ".tar" archive files.
• tar-bytestring test and benchmark: Reading, writing and manipulating ".tar" archive files.
• text-locale-encoding library: Encode and decode Text to/from ByteString using TextEncoding
• threefish library: The Threefish block cipher and the Skein hash function for Haskell.
• Twofish library and test: An implementation of the Twofish Symmetric-key cipher.
• uconv library: String encoding conversion with ICU
• ulid library, program, test and benchmark: Implementation of ULID - Universally Unique Lexicographically Sortable Identifier
• utf8-conversions library and test: A string conversion library that assumes utf8
• utf8-light library and test: Unicode
• utf8-string library and test: Support for reading and writing UTF8 Strings
• utf8-validator library, test and benchmark: Constant-space UTF8 validator for ByteStrings
• vivid-osc library and test: Open Sound Control encode/decode
• wave library and test: Work with WAVE and RF64 files
• wavefront library: Wavefront OBJ loader
• webp library and test: JuicyPixels support for WebP format
• winery library, program, tests and benchmark: A compact, well-typed seralisation format for Haskell values
• xls library, program and test: Parse Microsoft Excel xls files (BIFF/Excel 97-2004)
• xlsior library and test: Streaming Excel file generation and parsing
• xlsx library, test and benchmark: Simple and incomplete Excel file parser/writer
• xlsx-tabular library and test: Xlsx table cell value extraction utility
• xlsx-templater library and program: Simple and incomplete Excel file templater
• xor library, test and benchmark: Efficient XOR masking
• xz library and test: LZMA/XZ compression and decompression
• xz-clib library: LZMA/XZ clibs
• yajl library: Bindings for YAJL, an event-based JSON implementation
• zim-parser library and test: Read and parse ZIM files
• zip library, program and test: Operations on zip archives
• zip-archive library, program and test: Library for creating and modifying zip archives.
• zip-conduit library and test: Working with zip archives via conduits
• zip-stream library, programs and test: ZIP archive streaming using conduits
• zlib library and test: Compression and decompression in the gzip and zlib formats
• zlib-bindings library and test: Low-level bindings to the zlib package.
• zlib-clib library: zlib C library bits
• zlib-enum program: Enumerator interface for zlib compression
• zlib-lens library: Lenses for zlib
• zstd library, test and benchmark: Haskell bindings to the Zstandard compression algorithm
• ztar library and tests: Creating and extracting arbitrary archives

Codecs

• Codec-Image-DevIL library: An FFI interface to the DevIL library
• double-x-encoding library and test: Encoding scheme to encode any Unicode string with only [0-9a-zA-Z_]
• HSoundFile library: Audio file reading/writing
• html-entities library: A codec library for HTML-escaped text and HTML-entities
• json-bytes-builder library, test and benchmark: Direct-to-bytes JSON Builder
• pngload library: Pure Haskell loader for PNG images
• pngload-fixed library: Pure Haskell loader for PNG images
• postgresql-binary library, test and benchmarks: Encoders and decoders for the PostgreSQL's binary format
• url-decoders library, test and benchmarks: Decoders for URL-encoding (aka Percent-encoding)

Codegen

• elmental library, program and test: Generate Elm datatype definitions, encoders and decoders from Haskell datatypes.
• fields-and-cases library and test: Codegen Haskell types to other languages
• hasktorch library, tests and benchmarks: Haskell bindings to libtorch, supporting both typed and untyped tensors.
• libtorch-ffi library and test: Haskell bindings for PyTorch
• libtorch-ffi-helper library: Helpers for integrating libtorch-ffi with Hasktorch.
• module-munging library and test: Smash together text to make modules.
• shwifty library: Generate swift types from haskell types.
• tdlib-gen library, program and test: Codegen for TDLib

CodeQuality

• source-constraints library and test: Source constraints GHC plugin

Coerce

• safe-coerce library: A friendly shorthand for an old friend

Combinatorics

• fast-arithmetic library, test and benchmark: Fast functions on integers.
• jackpolynomials library, test and benchmark: Jack, zonal, Schur, and other symmetric polynomials
• matroid library and test: matroid (combinatorial pre-geometries) library

Combinators

• arrow-utils library and test: functions for working with arrows
• data-aviary library: Combinator birds.
• data-emoticons library: Combinator emoticons: data-aviary in the flavor of emoticons
• DeepArrow library: Arrows for "deep application"
• flow library and test: Write more understandable Haskell.
• flow-er library and test: More directional operators
• functional-arrow library: Combinators that allow for a more functional/monadic style of Arrow programming
• JSON-Combinator library: A combinator library on top of a generalised JSON type
• JSON-Combinator-Examples library: Example uses of the JSON-Combinator library.
• MapWith library, tests and benchmarks: mapWith: like fmap, but with additional parameters (isFirst, isLast, etc).
• op library and test: Common operators encouraging large-scale easy reading
• overhang library: Hang loose with your lambdas!
• pattern-arrows library: Arrows for Pretty Printing
• pointless-fun library: Some common point-free combinators.
• porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
• porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
• porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
• predicates library: A couple of convenience functions for forming predicates.
• prelude-extras library: Higher order versions of Prelude classes
• reader-soup library: Vinyl-based reader-like monad composition
• reverse-apply library: Standard version of the reverse apply operator.
• scc library, program and test: Streaming component combinators
• sec library: Semantic Editor Combinators.
• syb-extras library: Higher order versions of the Scrap Your Boilerplate classes

Command Line

• cli-extras library: Miscellaneous utilities for building and working with command line interfaces
• dmc library and test: cmd for common cases
• gamgee library, program and test: Tool for generating TOTP MFA tokens.
• Hish library and program
• hnormalise library, programs, test and benchmark: Log message normalisation tool producing structured JSON messages
• optima-for-hasql library: Command-line arguments parsing for Hasql
• oset library, program and test: An insertion-order-preserving set
• ReadArgs library, program and test: Simple command line argument parsing
• readline-in-other-words library and program: Readline effect for in-other-words.
• req-oauth2 library, program and test: Provides OAuth2 authentication for use with Req
• sandwatch library, program and test: record historical command runtimes for later prediction
• sexpr-parser library, program and test: Simple s-expression parser
• shellmet library, program and test: Out of the shell solution for scripting in Haskell
• tinyapp library and test: Library to build tiny apps in Haskell

Command Line Tool

• catnplus program: Simple tool to display text files with line numbers and paging
• herms program: A command-line manager for delicious kitchen recipes
• hidden-char library and test: Provides cross-platform getHiddenChar function
• update-repos library, program and test: Update all your git repositories with just one command.
• weatherhs program: Weather and related data info command-line tool

Command Line Tools

• brok library, program and test: Finds broken links in text files
• cli-setup library: Helper setup scripts for packaging command-line tools.
• cmt library, program and test: Write consistent git commit messages
• confetti library, program and test: A simple config file swapping tool
• frecently program: CLI frecency history
• mem-info library, program and test: Print the core memory usage of programs
• taskell library, program and test: A command-line kanban board/task manager

CommandLine

• calenderweek program: Commandline tool to get week of the year
• pandoc-sidenote library and program: Convert Pandoc Markdown-style footnotes into sidenotes
• perceptual-hash library, program, test and benchmark: Find duplicate images
• sak program: Compression command-line tool

Commerce

• turni program: shifts scheduling tool

Commercial

• snowflake-core library and test: twitter's snowflake
• snowflake-server program: snowflake http server

Common-Parts

• handle-like library: HandleLike class

Comonad

• co-log library, programs and tests: Composable Contravariant Comonadic Logging Library
• co-log-concurrent library: Asynchronous backend for co-log library
• co-log-core library and test: Composable Contravariant Comonadic Logging Library
• co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library

Comonads

• category-extras library: A meta-package documenting various packages inspired by category theory
• comonad library: Comonads
• comonad-extras library: Exotic comonad transformers
• comonad-transformers library: This package has been merged into comonad 4.0
• comonads-fd library: This package has been merged into comonad 4.0
• data-lens library: Used to be Haskell 98 Lenses
• data-lens-fd library: Lenses
• data-lens-ixset library and test: A Lens for IxSet
• day-comonoid library: A comonoid w.r.t. Day
• folds library: Beautiful Folding
• functor-monad library and test: FFunctor: functors on (the usual) Functors
• graphted library: Graph indexed monads.
• kan-extensions library: Kan extensions, Kan lifts, the Yoneda lemma, and (co)density (co)monads
• partial-lens library: Haskell 98 Partial Lenses
• representable-tries library: Tries from representations of polynomial functors
• rivers library: Rivers are like Streams, but different.
• semigroupoids library: Semigroupoids: Category sans id
• streams library: Various Haskell 2010 stream comonads
• zipper-extra library: Zipper utils that weren't in Control.Comonad.Store.Zipper

Compatibility

• base-compat library: A compatibility layer for base
• base-compat-batteries library and test: base-compat with extra batteries
• base-orphans library and test: Backwards-compatible orphan instances for base
• binary-orphans library and test: Compatibility package for binary; provides instances
• data-array-byte library and test: Compatibility layer for Data.Array.Byte
• deriving-compat library and test: Backports of GHC deriving extensions
• foldable1-classes-compat library, test and benchmark: Compatibility package for the Foldable1 and Bifoldable1 type classes
• ghc-bignum-orphans library: Backwards-compatible orphan instances for ghc-bignum
• ghc-magic-dict-compat library and test: A compatibility layer and GHC plugin for `withDict` from "GHC.Magic.Dict".
• mtl-compat library: Backported Control.Monad.Except module from mtl
• prelude-compat library: Provide Prelude and Data.List with fixed content across GHC versions
• template-haskell-compat-v0208 library: Backward-compatibility layer for Template Haskell newer than 2.8
• time-compat library and tests: Compatibility package for time
• transformers-compat library: A small compatibility shim for the transformers library
• types-compat library: ghc-7.6/7.8 compatible GHC.TypeLits, Data.Typeable and Data.Proxy.
• wherefrom-compat library and test: A compatibility layer for GHC's 'wherefrom' function

Compilation

• platinum-parsing library, program and test: General Framework for compiler development.

Compiler

• agda2hs program: Compiling Agda code to readable Haskell.
• ajhc library and programs: Haskell compiler that produce binary through C language
• alpha program: A compiler for the Alpha language
• annah library and program: Medium-level language that desugars to Morte
• binaryen library and test: Haskell bindings to binaryen
• bond library, program and test: Bond schema compiler and code generator
• cao program: CAO Compiler
• circ library: A Compiler IR Compiler.
• core-compiler library and program: compile your own mini functional language with Core
• datafix library, program, tests and benchmark: Fixing data-flow problems
• dataflow library, program and test: Generate Graphviz documents from a Haskell representation.
• dhall library, program, tests and benchmarks: A configuration language guaranteed to terminate
• dhall-bash library and program: Compile Dhall to Bash
• dhall-csv library, programs and test: Convert bidirectionally between Dhall and CSV files.
• dhall-docs library, program and tests: Generate HTML docs from a dhall package
• dhall-json library, programs and test: Convert between Dhall and JSON or YAML
• dhall-nix program: Dhall to Nix compiler
• dhall-openapi library and program: Convert an OpenAPI specification to a Dhall package
• dhall-text program: Template text using Dhall
• dhall-text-shell library and program: Render dhall text with shell commands as function arguments
• dhall-toml library, programs and tests: Convert between Dhall and TOML
• dhall-yaml library, programs and test: Convert between Dhall and YAML
• Elm library, programs and tests: The Elm language module.
• elm-bridge library and tests: Derive Elm types and Json code from Haskell types, using aeson's options
• elm-build-lib library: Compile Elm code to JS within Haskell
• elm-compiler library, programs and test: Values to help with elm-package, elm-make, and elm-lang.org.
• elm-core-sources library: Source files for the Elm runtime and standard libraries
• elm-reactor program: Interactive development tool for Elm programs
• elm-server program: Server for developing Elm projects
• elm-street library, programs and test: Crossing the road between Haskell and Elm
• elm-syntax library and test: Elm syntax and pretty-printing
• feldspar-compiler library, tests and benchmark: Compiler for the Feldspar language
• flite library and programs: f-lite compiler, interpreter and libraries
• flp library, programs and test: A layout spec language for memory managers implemented in Rust.
• formal program: A statically typed, functional programming language
• forml program: A statically typed, functional programming language
• gf library, program and test: Grammatical Framework
• gibbon program: A compiler for operating on serialized trees.
• gotyno-hs library, program and test: A type definition compiler supporting multiple output languages.
• hackager program: Hackage testing tool
• haskell-to-elm library, programs and test: Generate Elm types and JSON encoders and decoders from Haskell types
• haskelm library, program and test: Elm to Haskell translation
• haste-compiler programs: Haskell To ECMAScript compiler
• hcc program: A toy C compiler.
• helium library and programs: The Helium Compiler.
• hgom program: An haskell port of the java version of gom
• hs2bf program: Haskell to Brainfuck compiler
• jsonnet library, program, test and benchmark: Jsonnet implementaton in pure Haskell
• KiCS library and programs: A compiler from Curry to Haskell
• lambda2js program: Untyped Lambda calculus to JavaScript compiler
• lambdacube-compiler library and programs: LambdaCube 3D is a DSL to program GPUs
• lazyboy library and test: An EDSL for programming the Game Boy.
• lhc programs: LHC Haskell Compiler
• maxsharing program: Maximal sharing of terms in the lambda calculus with letrec
• microc library, program and test: microc compiler
• miv program and test: Vim plugin manager written in Haskell
• morloc library, program and test: A multi-lingual, typed, workflow language
• morte library, program, test and benchmark: A bare-bones calculus of constructions
• ntha library, program and test: A tiny statically typed functional programming language.
• optimusprime program: A supercompiler for f-lite
• pcf library: A one file compiler for PCF
• platinum-parsing library, program and test: General Framework for compiler development.
• polyglot library and program: Haskell to Purescript & Scala 3 transpiler
• record-preprocessor library, program and benchmark: Compiler preprocessor introducing a syntactic extension for anonymous records
• servant-to-elm library, program and test: Automatically generate Elm clients for Servant APIs
• sjsp program: Simple JavaScript Profiler
• statechart program: Compiles Rhapsody statecharts to C.
• sunroof-compiler library: Monadic Javascript Compiler
• sunroof-examples programs: Tests for Sunroof
• supero program: A Supercompiler
• tiger program: Tiger Compiler of Universiteit Utrecht
• zeolite-lang library, programs and test: Zeolite is a statically-typed, general-purpose programming language.

Compiler Plugin

• apply-unordered library and test: Apply a function to an argument specified by a type level Nat
• BinderAnn library and test: Source-to-source plugin for enhancing EDSLs with static annotations
• const-math-ghc-plugin library and test: Compiler plugin for constant math elimination
• cse-ghc-plugin library: Compiler plugin for common subexpression elimination
• ecta-plugin library: Hole-Fit Synthesis using ECTAs
• ghc-clippy-plugin library: Override GHC error messages to the user's liking
• ghc-plugin-non-empty library and test: GHC Plugin for non-empty lists
• ghc-plugs-out library and tests: Type checker plugins without the type checking.
• ghc-proofs library and tests: GHC plugin to prove program equations by simplification
• haskell-stack-trace-plugin library, program and test: haskell-stack-trace-plugin
• inspection-testing library and tests: GHC plugin to do inspection testing
• magic-tyfams library: Write plugins for magic type families with ease
• om-plugin-imports library: Plugin-based explicit import generation.
• seqaid library and programs: Dynamic strictness control, including space leak repair
• smuggler2 library and test: GHC Source Plugin that helps to minimise imports and generate explicit exports
• strict-ghc-plugin library: Compiler plugin for making Haskell strict
• typecheck-plugin-nat-simple library and tests: Simple type check plugin which calculate addition, subtraction and less-or-equal-than
• unroll-ghc-plugin library: Compiler plugin for loop unrolling

Compilers

• bound-extras library and test: ScopeH and ScopeT extras for bound
• funcons-intgen program: Generate Funcons interpreters from CBS description files
• fungll-combinators library: GLL parser with simple combinator interface
• gll library: GLL parser with simple combinator interface
• kaleidoscope library and programs: Haskell Kaleidoscope tutorial
• kempe library, program, tests and benchmark: Kempe compiler
• llvm-codegen library and test: A DSL for LLVM IR code generation based on llvm-hs.
• llvm-hs-pretty library and test: A pretty printer for LLVM IR.

Compilers/Interpreters

• accelerate library and tests: An embedded language for accelerated array processing
• accelerate-cuda library: Accelerate backend for NVIDIA GPUs
• accelerate-llvm library: Accelerate backend component generating LLVM IR
• accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
• accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
• alms program: a practical affine language
• amrun program: Interpreter for AM
• angle library, program, test and benchmarks: A small, general-purpose programming language.
• asic program: Action Script Instrumentation Compiler
• asil library: Action Script Instrumentation Library
• atuin program: Embedded Turtle language compiler in Haskell, with Epic output
• baskell program: An interpreter for a small functional language
• Befunge93 program: An interpreter for the Befunge-93 Programming Language
• bound library and tests: Making de Bruijn Succ Less
• bound-gen library: Unwrap Scope's with globally fresh values
• brainfuck library and program: Brainfuck interpreter
• brainfuck-monad library: BrainFuck monad
• cfipu program: cfipu processor for toy brainfuck-like language
• cfopu program: cfopu processor
• cnc-spec-compiler program: Compiler/Translator for CnC Specification Files.
• compilation library: Haskell functionality for quickly assembling simple compilers.
• core-haskell program: A subset of Haskell using in UCC for teaching purpose
• CPBrainfuck program: A simple Brainfuck interpretter.
• CPL program: An interpreter of Hagino's Categorical Programming Language (CPL).
• dcpu16 library, program and test: DCPU-16 Emulator & Assembler
• ddc-base library: Disciplined Disciple Compiler common utilities.
• ddc-build library: Disciplined Disciple Compiler build framework.
• ddc-code library: Disciplined Disciple Compiler base libraries.
• ddc-core library: Disciplined Disciple Compiler core language and type checker.
• ddc-core-babel library: Disciplined Disciple Compiler PHP code generator.
• ddc-core-eval library: Disciplined Disciple Compiler semantic evaluator for the core language.
• ddc-core-flow library: Disciplined Disciple Compiler data flow compiler.
• ddc-core-llvm library: Disciplined Disciple Compiler LLVM code generator.
• ddc-core-salt library: Disciplined Disciple Compiler C code generator.
• ddc-core-simpl library: Disciplined Disciple Compiler code transformations.
• ddc-core-tetra library: Disciplined Disciple Compiler intermediate language.
• ddc-driver library: Disciplined Disciple Compiler top-level driver.
• ddc-interface library: Disciplined Disciple Compiler user interface support.
• ddc-source-tetra library: Disciplined Disciple Compiler source language.
• ddc-tools programs: Disciplined Disciple Compiler command line tools.
• ddc-war program: Disciplined Disciple Compiler test driver and buildbot.
• ddci-core program: Disciple Core language interactive interpreter.
• dedukti library and programs: A type-checker for the λΠ-modulo calculus.
• Delta-Lambda program and test: A demonstration interpreter for type system delta-lambda (of N.G. De-bruijn)
• egison library, programs, tests and benchmark: Programming language with non-linear pattern-matching against non-free data
• egison-tutorial program: A tutorial program for the Egison programming language
• epic library and program: Compiler for a simple functional language
• exploring-interpreters library: A generic exploring interpreter for exploratory programming
• fst library, program and test: Finite state transducers
• funcons-simple program: A modular interpreter for executing SIMPLE funcons
• funcons-tools library and programs: A modular interpreter for executing funcons
• funcons-values library: Library providing values and operations on values in a fixed universe.
• Fungi program: Funge-98 interpreter written in Haskell
• ghci-haskeline program: An implementation of ghci using the Haskeline line-input library.
• ghclive library and program: Interactive Haskell interpreter in a browser.
• glambda library, program and test: A simply typed lambda calculus interpreter, written with GADTs
• graph-rewriting-lambdascope program: Lambdascope, an optimal evaluator of the lambda calculus
• graph-rewriting-ski programs: Two interactive evalutors of the SKI combinator calculus
• graph-rewriting-trs program: Interactive evaluation of first-order applicative term rewrite systems
• graph-rewriting-ww program: Interactive evaluator of the lambda-calculus with explicit sharing
• gulcii program: graphical untyped lambda calculus interactive interpreter
• HARM library and programs: A simple ARM emulator in haskell
• Haschoo program: Minimalist R5RS Scheme interpreter
• haskeem program: A small scheme interpreter
• helisp program: An incomplete Elisp compiler
• heystone library: Haskell bindings for the Keystone assembler framework
• hiccup program: Relatively efficient Tcl interpreter with support for basic operations
• hint library and test: A Haskell interpreter built on top of the GHC API
• hint-server library: A server process that runs hint.
• hinter library and test: Runtime Haskell interpreter (GHC API wrapper)
• hjs library and program: JavaScript Parser
• hLLVM library and program: A library for analyzing and transforming LLVM (3.5) assembly codes
• hoe program: hoe: Haskell One-liner Evaluator
• hoopl library and test: A library to support dataflow analysis and optimization
• husk-scheme library and programs: R5RS Scheme interpreter, compiler, and library.
• husk-scheme-libs library: Extra libraries for the husk Scheme platform.
• hybrid program: A implementation of a type-checker for Lambda-H
• hyper-haskell-server program: Server back-end for the HyperHaskell graphical Haskell interpreter
• hypertypes library, test and benchmark: Typed ASTs
• idris library, programs and test: Functional Programming Language with Dependent Types
• INblobs program: Editor and interpreter for Interaction Nets
• intcode library and test: Advent of Code 2019 intcode interpreter
• Jikka library, program and tests: A transpiler from Python to C++ for competitive programming
• koneko library, program and test: a concatenative not-quite-lisp for kittens
• lambda program: Interpreters for lambda calculus, calculus of constructions, and more
• lambda-ast library: Lambda Calculi Abstract Syntax Trees
• lambdacube program: A simple lambda cube type checker.
• LambdaShell program: Simple shell for evaluating lambda expressions
• language-dickinson library, program, test and benchmark: A language for generative literature
• llvm library: Bindings to the LLVM compiler toolkit.
• llvm-base library: FFI bindings to the LLVM compiler toolkit.
• llvm-base-util library: Utilities for bindings to the LLVM compiler toolkit.
• llvm-dsl library and test: Support for writing an EDSL with LLVM-JIT as target
• llvm-extension library and program: Processor specific intrinsics for the llvm interface
• llvm-extra library, program and test: Utility functions for the llvm interface
• llvm-ffi library and programs: FFI bindings to the LLVM compiler toolkit.
• llvm-ffi-tools programs: Tools for maintaining the llvm-ffi package
• llvm-general library and test: General purpose LLVM bindings
• llvm-general-pure library and test: Pure Haskell LLVM functionality (no FFI).
• llvm-general-quote library and test: QuasiQuoting llvm code for llvm-general
• llvm-hs library and test: General purpose LLVM bindings
• llvm-hs-pure library and test: Pure Haskell LLVM functionality (no FFI).
• llvm-ht library: Bindings to the LLVM compiler toolkit with some custom extensions.
• llvm-party library and test: General purpose LLVM bindings
• llvm-tf library, programs and test: Bindings to the LLVM compiler toolkit using type families.
• lvmlib library and program: The Lazy Virtual Machine (LVM).
• lvmrun program: The Lazy Virtual Machine (LVM) Runtime System.
• mappy library, program and test: A functional programming language focused around maps.
• nom library and tests: Name-binding & alpha-equivalence
• nominal library: Binders and alpha-equivalence made easy
• noodle library and programs: the noodle programming language
• NXTDSL library and program: Generate NXC Code from DSL
• omega program: A purely functional programming language and a proof system
• oplang program: Stack-based esoteric programming language
• peg program: a lazy non-deterministic concatenative programming language
• pesca program: Proof Editor for Sequent Calculus
• pi-forall library and program: Demo implementation of typechecker for dependently-typed language
• piet library and program: A Piet interpreter
• pretty-loc library: Tracking and highlighting of locations in source files
• risc386 program: Reduced instruction set i386 simulator
• secd library, program and test: A Haskell implementation of the SECD abstract machine
• secdh library and program: SECDH Machine Simulator
• shell-monad library: shell monad
• shimmer library and program: The Reflective Lambda Machine
• simple-atom library: Atom (or symbol) datatype for fast comparision and sorting.
• simple-pascal library and program: Simplified Pascal language to SSVM compiler
• simple-stacked-vm library and program: Simple stacked virtual machine: assembler, disassembler, bytecode interpreter
• soyuz library and program: DCPU-16 architecture utilities for Notch's 0x10c game.
• staticanalysis library: Reusable static analysis interfaces and modules.
• swf library: A library for creating Shockwave Flash (SWF) files
• tempus program: Interpreter for the FRP language Tempus
• textmatetags program: A simple Haskell program to provide tags for Haskell code completion in TextMate
• TinyLaunchbury library: Simple implementation of call-by-need using Launchbury's semantics
• transf library and program: Text transformer and interpreter.
• TypeIlluminator program: TypeIlluminator is a prototype tool exploring debugging of type errors/
• unbound library and test: Generic support for programming with names and binders
• unification-fd library: Simple generic unification algorithms.
• unique-lang program: Esoteric programming language where each number can only appear once
• unlambda library and program: Unlambda interpreter
• uu-cco library: Utilities for compiler construction: core functionality
• uu-cco-examples programs: Utilities for compiler construction: example programs
• uu-cco-hut-parsing library: Utilities for compiler construction: Feedback wrapper around parser in uulib
• uu-cco-uu-parsinglib library: Utilities for compiler construction: Feedback wrapper around parser in uu-parsinglib
• vintage-basic program and test: Interpreter for microcomputer-era BASIC
• whitespace program: Whitespace, an esoteric programming language.
• yabi program: Yet Another Brainfuck Interpreter
• zot program: Zot language

Composite

• compdoc library: Parse a Pandoc to a composite value.
• compdoc-dhall-decoder library: Allows you to write FromDhall instances for Compdoc
• composite-cassava library and test: Csv parsing functionality for composite.
• composite-dhall library and test: Dhall instances for composite records.
• composite-lens-extra library: Extra lens functions for composite.
• composite-tuple library: Tuple functions for composite records.
• composite-xml library and test: RecXML Type
• fcf-composite library and test: Type-level computation for composite using first-class-families.
• polysemy-methodology-composite library: Functions for using polysemy-methodology with composite.

Composition

• Aoide library: A simple music library with the capability of generating .ly and .mid files.
• higherorder library: Some higher order functions for Bool and []
• hofix-mtl library: defining @mtl@-ready monads as * -> * fixed-points
• invertible library and test: bidirectional arrows, bijective functions, and invariant functors
• invertible-hlist library: invertible functions and instances for HList
• invertible-hxt library: invertible transformer instances for HXT Picklers
• pointless-fun library: Some common point-free combinators.
• reverse-apply library: Standard version of the reverse apply operator.
• star-to-star library: the * -> * types, operators, and covariant instances.
• star-to-star-contra library: contravariant instances for * -> * types and operators.
• TypeCompose library: Type composition classes & instances

Compression

• brotli library and test: Brotli (RFC7932) compression and decompression
• brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
• brotli-streams library and test: IO-Streams interface for Brotli (RFC7932) compression
• bz2 library, test and benchmark: Bindings to libbz2
• bzip-signature library: Backpack signature for BZip compression
• compressed library: Compressed containers and reducers
• conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
• huffman library: Pure Haskell implementation of the Huffman encoding algorithm
• lz4-conduit library, program and test: LZ4 compression for conduits
• lz4-hs library, test and benchmarks: lz4 bindings for Haskell
• lzip library: Lzip compression / Lzlib bindings
• lzlib library, test and benchmarks: lzlib bindings
• lzma library and test: LZMA/XZ compression and decompression
• lzma-conduit library and test: Conduit interface for lzma/xz compression.
• lzma-enumerator library and test: Enumerator interface for lzma/xz compression.
• lzma-static test: LZMA/XZ compression and decompression (static)
• lzma-streams library and test: IO-Streams interface for lzma/xz compression
• lzo library, test and benchmark: minilzo bundled for Haskell
• machines-zlib library: Decompression support for machines
• parquet-hs library and tests: Streaming Parquet reader
• pipes-brotli library and test: Brotli (RFC7932) compressors and decompressors for the Pipes package
• pipes-zlib library and test: Zlib and GZip compression and decompression for Pipes streams
• potoki-zlib library: Streaming ZLib decompression
• sak program: Compression command-line tool
• sequitur library, program, test and benchmark: Grammar-based compression algorithms SEQUITUR
• shake-bindist library: Rules for binary distributions
• snappy library and test: Bindings to the Google Snappy library for fast compression/decompression
• snappy-framing library: Snappy Framing Format in Haskell
• snappy-lazy library: Lazy bytestring compression and decompression
• streaming-brotli library and test: Streaming interface for Brotli (RFC7932) compression
• streaming-lzma library and test: Streaming interface for LZMA/XZ compression
• streamly-lz4 library, test and benchmark: Streamly combinators for LZ4 compression
• webp library and test: JuicyPixels support for WebP format
• xz library and test: LZMA/XZ compression and decompression
• xz-clib library: LZMA/XZ clibs
• zlib-enum program: Enumerator interface for zlib compression

Computational Geometry

• marching-cubes library: Marching Cubes
• marching-cubes2 library: Marching Cubes

Computer Algebra

• cash library: the Computer Algebra SHell

Concourse

• dhall-fly library, program and test: Translate concourse config from Dhall to YAML

Concurrency

• accelerate library and tests: An embedded language for accelerated array processing
• accelerate-cuda library: Accelerate backend for NVIDIA GPUs
• accelerate-llvm library: Accelerate backend component generating LLVM IR
• accelerate-llvm-native library and test: Accelerate backend for multicore CPUs
• accelerate-llvm-ptx library and test: Accelerate backend for NVIDIA GPUs
• actor library: Actors with multi-headed receive clauses
• alarmclock library and test: Wake up and perform an action at a certain time.
• arbor-lru-cache library and test: LRU cache based on STM
• async library, programs and test: Run IO operations asynchronously and wait for their results
• async-combinators library and test: Async combinators
• async-dejafu library and test: Run MonadConc operations asynchronously and wait for their results.
• async-extras library: Extra Utilities for the Async Library
• async-manager library and program: A thread manager for async
• async-timer library and test: Provides API for timer based execution of IO actions
• atomic-counter library, test and benchmark: Mutable counters that can be modified with atomic operatinos
• atomic-modify library: A typeclass for mutable references that have an atomic modify operation.
• atomic-modify-general library and test: Generalizations of atomicModifyIORef
• atomic-primops-vector library and test: Atomic operations on Data.Vector types
• AVar library: Mutable variables with Exception handling and concurrency support.
• bits-atomic library and program: Atomic bit operations on memory locations for low-level synchronization
• bitset-word8 library, test and benchmark: Space efficient set of Word8 and some pre-canned sets useful for parsing HTTP
• blocking-transactions library: Composable, blocking transactions.
• bounded-qsem library: Bounded quantity semaphores.
• bounded-tchan library: Bounded Transactional channels (queues)
• BoundedChan library: Implementation of bounded channels.
• butter library and tests: Monad Transformer for Asyncronous Message Passing
• caf library: A library of Concurrency Abstractions using Futures.
• capataz library and test: OTP-like supervision trees in Haskell
• cgroup-rts-threads library and test: A container-/cgroup-aware substitute for the GHC RTS `-N` flag
• chan library and test: Some extra kit for Chans
• chan-split library: Concurrent Chans as read/write pairs. Also provides generic Chan pair class.
• chp library: An implementation of concurrency ideas from Communicating Sequential Processes
• chp-mtl library: MTL class instances for the CHP library
• chp-plus library: A set of high-level concurrency utilities built on Communicating Haskell Processes
• chp-spec library: A mirror implementation of chp that generates a specification of the program
• chp-transformers library: Transformers instances for the CHP library
• cio library: A monad for concurrent IO on a thread pool
• clocked library: timer functionality to clock IO commands
• cml library: Events and Channels as in Concurrent ML
• collapse-util program: utility for collapsing adjacent writes
• companion library: A Haskell library to provide companion threads.
• conceit library: Concurrent actions that may fail with a value.
• concurrency library: Typeclasses, functions, and data types for concurrency and STM.
• concurrent-barrier library: Simple thread barriers
• Concurrent-Cache library: A Cached variable for IO functions.
• concurrent-extra library and test: Extra concurrency primitives
• concurrent-hashtable library, test and benchmark: Thread-safe hash tables for multi-cores!
• concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
• concurrent-output library: Ungarble output from several threads or commands
• concurrent-rpc library: An abstraction for inter-thread RPC based on MVars
• concurrent-sa library: Concurrent simulated annealing system.
• concurrent-supply library and test: A fast concurrent unique identifier supply with a pure API
• concurrent-utilities library: More utilities and broad-used datastructures for concurrency.
• ConcurrentUtils library: Concurrent utilities
• conlogger library and program: A logger for a concurrent program.
• consumers library and tests: Concurrent PostgreSQL data consumers
• coroutine-enumerator library: Bridge between the monad-coroutine and enumerator packages.
• coroutine-iteratee library: Bridge between the monad-coroutine and iteratee packages.
• CSPM-CoreLanguage library: Definition of a CSP core-language.
• CSPM-cspm library and program: cspm command line tool for analyzing CSPM specifications.
• CSPM-FiringRules library: Firing rules semantic of CSPM
• CSPM-Frontend library: A CSP-M parser compatible with FDR-2.91
• CSPM-Interpreter library: An interpreter for CSPM
• cspmchecker programs: A command line type checker for CSPM files.
• ctrie library, test and benchmarks: Non-blocking concurrent map
• data-concurrent-queue library: A Library for directional queues
• data-ivar library: Write-once variables with concurrency support
• data-timeout library: 64-bit timeouts of nanosecond precision
• dejafu library: A library for unit-testing concurrent programs.
• delay library and test: More useful and humain delaying functions
• drama library and programs: Actor library for Haskell
• epass library: Baisc, Erlang-like message passing supporting sockets.
• eprocess library: Basic Erlang-like process support for Haskell
• equeue library and test: Application level triggered, and edge triggered event multiqueues.
• event library: Monoidal, monadic and first-class events
• expiring-mvar library: Create values which expire after a period of time.
• extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
• festung library, program and test: Remote multi-db SQLCipher server
• flush-queue library, test and benchmark: ...
• forward-chan library: Concurrent channels with a forwarding primitive
• fraxl library, program and benchmark: Cached and parallel data fetching.
• free-concurrent library: Free monads suitable for concurrent computation
• fudgets library and programs: The Fudgets Library
• future library: Supposed to mimics and enhance proposed C++ "future" features
• futures library: Simple and fast implementation of Future
• global-lock library: A global lock implemented without unsafePerformIO
• gochan library, programs and test: Go-style channels
• Graph500 library and program: Graph500 benchmark-related definitions and data set generator.
• GraphHammer library: GraphHammer Haskell graph analyses framework inspired by STINGER.
• GraphHammer-examples library and programs: Test harness for TriangleCount analysis.
• hactor library: Lightweight Erlang-style actors for Haskell.
• hactors library: Practical actors for Haskell.
• hakka library and program: Minimal akka-inspired actor library
• HasChor library and programs: Functional choreographic programming in Haskell
• haskell-throttle library and test: A simple throttling library, which drops messages from same group.
• haxl library, programs and test: A Haskell library for efficient, concurrent, and concise data access.
• haxl-facebook library and test: An example Haxl data source for accessing the Facebook Graph API
• heartbeat-streams library: Heartbeats for io-streams
• hint-server library: A server process that runs hint.
• HLogger library and program: Simple, concurrent and easy-to-use logging library
• hlogger library: Simple, concurrent, extendable and easy-to-use logging library
• hydra-print library, programs and test: NCurses interface to view multiple ByteString streams in parallel.
• immortal library and test: Spawn threads that never die (unless told to do so)
• immortal-queue library and test: Build a pool of queue-processing worker threads.
• immortal-worker library: Create worker threads that logs exceptions and restarts.
• inc-ref library: A STM reference useful for incremental computing
• io-throttle library and test: Limit number of IO actions started per second
• iothread library: run IOs in a single thread
• ivar-simple library: Write once concurrency primitives.
• join library: Parallel Join Patterns with Guards and Propagation
• kazura-queue library, tests and benchmark: Fast concurrent queues much inspired by unagi-chan
• keera-callbacks library: Mutable memory locations with callbacks
• ki library and test: A lightweight structured concurrency library
• ki-effectful library and test: Adaptation of the ki library for the effectful ecosystem.
• ki-unlifted library: A lightweight structured concurrency library
• kickchan library and test: Kick Channels: bounded channels with non-blocking writes
• laminar library and test: Run dependent IO actions asynchronously.
• lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
• lazy-async library and test: Asynchronous actions that don't start right away
• legion library: Distributed, stateful, homogeneous microservice framework.
• libcspm library and test: A library providing a parser, type checker and evaluator for CSPM.
• lifted-async library, tests and benchmarks: Run lifted IO operations asynchronously and wait for their results
• lifted-stm library: STM operations lifted through monad transformer stacks
• lifted-threads library: lifted IO operations from the threads library
• lockpool library: set a maximum on the number of concurrent actions
• lrucaching-haxl library: Combine lrucaching and haxl.
• lub library: information operators: least upper bound (lub) and greatest lower bound (glb)
• lukko library and tests: File locking
• lvar library: TMVar that can be listened to
• lvish library and test: Parallel scheduler, LVar data structures, and infrastructure to build more.
• massiv-scheduler library and tests: Work stealing scheduler for Massiv (Массив) and other parallel applications.
• mech library: mecha are the most complex composite machines known to humanity, lets build them well!
• Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
• Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
• mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
• midair library: Hot-swappable FRP
• monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
• monad-schedule library and test: A new, simple, composable concurrency abstraction.
• monadIO library: Overloading of concurrency variables
• mstate library: MState: A consistent State monad for concurrent applications.
• multisetrewrite library: Multi-set rewrite rules with guards and a parallel execution scheme
• mvar-lock library: A trivial lock based on MVar
• mvc library: Model-view-controller
• mvc-updates library: Concurrent and combinable updates
• named-lock library: A named lock that is created on demand.
• nano-erl library: Small library for Erlang-style actor semantics
• oath library, test and benchmark: Composable concurrent computation done right
• ochan library and test: Owned channels in the Ownership Monad
• om-actor library: Actor pattern utilities.
• orderly-workers library: Fork concurrent worker threads and produce ordered results
• parallel-io library and programs: Combinators for executing IO actions in parallel on a thread pool.
• parallel-tree-search library: Parallel Tree Search
• persistent-map library: A thread-safe (STM) persistency interface for finite map types.
• pipes-cliff library and programs: Streaming to and from subprocesses using Pipes
• pipes-concurrency library and test: Concurrency for the pipes ecosystem
• polysemy-conc library and test: Polysemy effects for concurrency
• post-mess-age library: Send messages to a handle concurrently without getting them mixed.
• prefetch program: Prefetch stdin even before stdout is ready
• priority-sync library and program: Cooperative task prioritization.
• PriorityChansConverger library: Read single output from an array of inputs - channels with priorities
• privileged-concurrency library: Provides privilege separated versions of the concurrency primitives.
• promise library: A monadic interface for async
• pulse library: Synchronize actions to a time pulse
• qsem library: quantity semaphores
• rawlock library and test: A writer-biased RAW lock.
• reactor library: Reactor - task parallel reactive programming
• restricted-workers library: Running worker processes under system resource restrictions
• rio-process-pool library, program, test and benchmark: A library for process pools coupled with asynchronous message queues
• roundRobin library and test: A simple round-robin data type
• rwlock library: Multiple-read / single-write locks
• SafeSemaphore library and test: Much safer replacement for QSemN, QSem, and SampleVar
• scc library, program and test: Streaming component combinators
• scheduler library and tests: Work stealing scheduler.
• scotty-haxl library: Combine scotty and haxl
• semaphore-plus library: Various concurrency abstractions built on top of semaphores
• sharedio library: Bundles shared calls to IO functions to perform them only once
• simple-actors library: A library for more structured concurrent programming, based on the Actor Model
• singnal library: Singnal
• sirkel library: Sirkel, a Chord DHT
• skip-var library: Skip variables
• slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
• spawn library: Tiny library for concurrent computations
• spectacle library and tests: Embedded specification language & model checker in Haskell.
• speculation library: A framework for safe, programmable, speculative parallelism
• split-channel library: Control.Concurrent.Chan split into sending and receiving halves.
• split-tchan library: STM's TChan split into sending and receiving halves.
• Stasis library and program: A simple MVCC like library
• stc-lang library, program and test: A library for implicit, monadic dataflow parallelism
• stm library: Software Transactional Memory
• stm-channelize library: Transactional I/O for duplex streams
• stm-chans library: Additional types of channels for STM.
• stm-chunked-queues library and test: Chunked Communication Queues
• stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
• stm-containers library and test: Containers for STM
• stm-extras library: Extra STM functions
• stm-hamt library, test and benchmark: STM-specialised Hash Array Mapped Trie
• stm-incremental library and test: A library for constructing incremental computations
• stm-io-hooks library: Launch your IO-actions from within the STM monad
• stm-lifted library: Software Transactional Memory lifted to MonadIO
• stm-orelse-io library: Choose between the return value of an STM operation and an IO action.
• stm-promise library and test: Simple STM Promises for IO computations and external processes
• stm-queue-extras library: Extra queue utilities for STM
• stm-stats library: retry statistics for STM transactions
• stmcontrol library: Control communication among retrying transactions
• streamly library: Streaming, dataflow programming and declarative concurrency
• streamly-examples programs: Examples for Streamly
• strict-mvar library and test: Strict MVars for IO and IOSim
• strict-stm library: Strict STM interface polymorphic over stm implementation.
• supervisors library and test: Monitor groups of threads with non-hierarchical lifetimes.
• suspend library: Simple package that allows for long thread suspensions.
• sync library: A fast implementation of synchronous channels with a CML-like API
• synchronous-channels library: Synchronous communication channels
• tag-bits library: Provides access to the dynamic pointer tagging bits used by GHC.
• tbox library: Transactional variables and data structures with IO hooks
• theatre library: Minimalistic actor library
• theatre-dev library and test: Minimalistic actor library experiments
• thespian library: Lightweight Erlang-style actors for Haskell
• thread-hierarchy library and test: Simple Haskell thread management in hierarchical manner
• thread-supervisor library and test: A simplified implementation of Erlang/OTP like supervisor over thread
• thread-utils-context library and test: Garbage-collected thread local storage
• thread-utils-finalizers library and test: Perform finalization for threads.
• threadmanager library: (deprecated in favor of 'threads') Simple thread management
• ThreadObjects library: Mutable objects that reside in their own threads.
• threads library and test: Fork threads and wait for their result
• threads-supervisor library, program and test: Simple, IO-based library for Erlang-style thread supervision
• throttle-io-stream library and test: Throttler between arbitrary IO producer and consumer functions
• throttled library: Concurrent processing of a Foldable, throttled by CPU count.
• ticker library and tests: A concurrent utility inspired by Ticker in golang
• timeout library and test: Generalized sleep and timeout functions
• timeout-control library: Updatable timeouts as a Monad transformer
• timeout-with-results library: Runs a time-limited computation alowing it to return intermediate results.
• timers library: Simple package that implements timers.
• timers-updatable library: timers which are updatable in the remaining time
• token-bucket library and test: Rate limiter using lazy bucket algorithm
• token-limiter library, program and test: Fast rate limiting using the token bucket algorithm (BSD)
• transient library and test: composing programs with multithreading, events and distributed computing
• tskiplist library: A Skip List Implementation in Software Transactional Memory (STM)
• ttrie library, test and benchmark: Contention-free STM hash map
• twilight-stm library: STM library with safe irrevocable I/O and inconsistency repair
• typed-duration library: Thread delay and timeout functions with typed arguments
• unagi-bloomfilter library, program, test and benchmark: A fast, cache-efficient, concurrent bloom filter
• unagi-chan library, test and benchmarks: Fast concurrent queues with a Chan-like API, and more
• unagi-streams library: Unagi Chan IO-Streams
• unamb library and program: Unambiguous choice
• unamb-custom library: Functional concurrency with unamb using a custom scheduler.
• unbounded-delays library: Unbounded thread delays and timeouts
• unclogging library, program and test: a library which implements easy, concurrent and pretty logging
• unfork library: Make any action thread safe
• unique library: Fully concurrent unique identifiers
• unlift-stm library: (un)lifted classes and functions for the STM monad
• unliftio-messagebox library, program, test and benchmark: Fast and robust message queues for concurrent processes
• unsafe-promises library: Create pure futures using lazy IO.
• wait-handle library: Wait handles are MVars which can only be written to once, ...
• waitfree library: A wrapping library for waitfree computation.

Concurrent

• chaselev-deque library and test: Chase & Lev work-stealing lock-free double-ended queues (deques).
• concurrent-split library: MVars and Channels with distinguished input and output side
• forkable-monad library: An implementation of forkIO for monad stacks.
• lockfree-queue library and test: Michael and Scott lock-free queues.
• net-concurrent library: Concurrent over the network execution library
• par-traverse library: Traverse a directory in parallel
• promises library: Lazy demand-driven promises
• sirkel library: Sirkel, a Chord DHT
• slave-thread library and test: A fundamental solution to ghost threads and silent exceptions
• spawn library: Tiny library for concurrent computations
• stm-split library: TMVars, TVars and TChans with distinguished input and output side
• threaded library and test: Manage concurrently operating threads without having to spark them
• throttled-io-loop library and test: Loop over an action but throttle it to a certain rate

Conduit

• amqp-streamly library and test: A simple streamly wrapper for amqp
• ascii85-conduit library and test: Conduit for encoding ByteString into Ascii85
• atom-conduit library and tests: Streaming parser/renderer for the Atom 1.0 standard (RFC 4287).
• attoparsec-conduit library: Consume attoparsec parsers via conduit. (deprecated)
• base64-conduit library and test: Base64-encode and decode streams of bytes. (deprecated)
• binary-conduit library and test: data serialization/deserialization conduit library
• bits-conduit library, test and benchmark: Bitstream support for Conduit
• blaze-builder-conduit library: Convert streams of builders to streams of bytestrings. (deprecated)
• brotli-conduit library and test: Conduit interface for Brotli (RFC7932) compression.
• cereal-conduit library and test: Turn Data.Serialize Gets and Puts into Sources, Sinks, and Conduits
• conduit library, test and benchmarks: Streaming data processing library.
• conduit-algorithms library, test and benchmark: Conduit-based algorithms
• conduit-combinators library: DEPRECATED Functionality merged into the conduit package itself
• conduit-concurrent-map library and test: Concurrent, order-preserving mapping Conduit
• conduit-connection library and test: Conduit source and sink for Network.Connection.
• conduit-extra library, test and benchmark: Batteries included conduit: adapters for common libraries.
• conduit-iconv library, test and benchmark: Conduit for character encoding conversion.
• conduit-merge library: Merge multiple sorted conduits
• conduit-parse library and tests: Parsing framework based on conduit.
• conduit-resumablesink library and test: Allows conduit to resume sinks to feed multiple sources into it.
• conduit-tokenize-attoparsec library, program and test: Conduits for tokenizing streams.
• conduit-vfs library and test: Virtual file system for Conduit; disk, pure, and in-memory impls.
• conduit-vfs-zip library and test: Zip archive interface for the Conduit Virtual File System.
• conduit-zstd library and test: Conduit-based ZStd Compression
• couchdb-conduit library and test: Couch DB client library using http-conduit and aeson
• crypto-conduit library and test: Conduit interface for cryptographic operations (from crypto-api).
• cryptohash-conduit library: cryptohash conduit
• crypton-conduit library and test: crypton conduit
• cryptonite-conduit library and test: cryptonite conduit
• csv-conduit library and test: A flexible, fast, conduit-based CSV parser library for Haskell.
• decoder-conduit library: Conduit for decoding ByteStrings using Data.Binary.Get
• esqueleto-streaming library: Memory-constant streaming of Esqueleto results from PostgreSQL
• filesystem-conduit library and test: Use system-filepath data types with conduits. (deprecated)
• fluent-logger-conduit library: Conduit interface for fluent-logger
• fold-debounce-conduit library and test: Regulate input traffic from conduit Source with Control.FoldDebounce
• fsnotify-conduit library and test: Get filesystem notifications as a stream of events
• ftp-conduit library: FTP client package with conduit interface based off http-conduit
• hasql-streams-conduit library: Stream Hasql queries with Conduit
• hinotify-conduit library and test: inotify conduit sources
• hreq-conduit library and tests: Conduit streaming support for Hreq.
• html-conduit library and test: Parse HTML documents using xml-conduit datatypes.
• http-conduit library and test: HTTP client package with conduit interface and HTTPS support.
• http-conduit-browser library and test: Browser interface to the http-conduit package
• hw-all library: Demo library
• hw-conduit library, tests and benchmark: Conduits for tokenizing streams.
• hw-conduit-merges library and test: Additional merges and joins for Conduit
• hw-succinct library: Succint datastructures
• imagesize-conduit library and test: Determine the size of some common image formats.
• jsonrpc-conduit library and test: JSON-RPC 2.0 server over a Conduit.
• lz4-conduit library, program and test: LZ4 compression for conduits
• lzma-conduit library and test: Conduit interface for lzma/xz compression.
• network-conduit library: Stream socket data using conduits. (deprecated)
• opml-conduit library and tests: Streaming parser/renderer for the OPML 2.0 format.
• persistent-postgresql-streaming library: Memory-constant streaming of Persistent entities from PostgreSQL
• pool-conduit library: Resource pool allocations via ResourceT. (deprecated)
• potoki-conduit library and test: Integration of "potoki" and "conduit"
• process-conduit library and test: Conduits for processes (deprecated)
• req-conduit library, test and benchmark: Conduit helpers for the req HTTP client library
• resourcet library and test: Deterministic allocation and freeing of scarce resources.
• resourcet-pool library: A small library to convert a Pool into an Acquire
• rss-conduit library and tests: Streaming parser/renderer for the RSS standard.
• sandi library, test and benchmark: Data encoding library
• shell-conduit library and test: Write shell scripts with Conduit
• simple-conduit library and benchmark: A simple streaming I/O library based on monadic folds
• stm-conduit library and tests: Introduces conduits to channels, and promotes using conduits concurrently.
• stomp-conduit library: Stompl Conduit Client
• tagstream-conduit library and test: streamlined html tag parser
• twitter-conduit library and tests: Twitter API package with conduit interface and Streaming API support.
• udp-conduit library: Simple fire-and-forget conduit UDP wrappers
• wai-conduit library: conduit wrappers for WAI
• xinput-conduit library: Conduit of keys pressed by xinput
• xml-conduit library and tests: Pure-Haskell utilities for dealing with XML with the conduit package.
• xml-conduit-parse library and tests: Streaming XML parser based on conduits.
• zip-conduit library and test: Working with zip archives via conduits
• zip-stream library, programs and test: ZIP archive streaming using conduits
• zlib-conduit library: Streaming compression/decompression via conduits. (deprecated)

Config

• aws-mfa-credentials program: Keep your AWS credentials file up to date with MFA-carrying credentials
• rasa-example-config program: Example user config for Rasa

Configuration

• app-settings library and test: A library to manage application settings (INI file-like)
• aws-configuration-tools library: Configuration types, parsers & renderers for AWS services
• bini library: A collection of various methods for reading and writing bini files.
• boots-app library and program: Factory for quickly building an application
• cfg library and tests: Type directed application configuration parsing and accessors
• conf library and test: Parser for Haskell-based configuration files.
• conf-json library and test: read, parse json config
• conferer library and test: Configuration management library
• conferer-aeson library and test: conferer's source for reading json files
• conferer-dhall library and test: Configuration for reading dhall files
• conferer-hedis library and test: conferer's FromConfig instances for hedis settings
• conferer-hspec library and test: conferer's FromConfig instances for hspec Config
• conferer-provider-dhall library and test: Configuration for reading dhall files
• conferer-provider-json library and test: conferer's provider for reading json files
• conferer-provider-yaml library and test: Configuration for reading yaml files
• conferer-snap library and test: conferer's FromConfig instances for snap Config
• conferer-source-dhall library and test: Configuration for reading dhall files
• conferer-source-json library and test: conferer's source for reading json files
• conferer-source-yaml library and test: Configuration for reading yaml files
• conferer-warp library and test: conferer's FromConfig instances for warp settings
• conferer-yaml library and test: Configuration for reading yaml files
• config-ini library and tests: A library for simple INI-based configuration files.
• config-manager library and test: Configuration management
• config-value-getopt library: Interface between config-value and System.GetOpt
• Configger library: Parse config files
• configifier library, program and test: parser for config files, shell variables, command line args.
• configuration-tools library, program and tests: Tools for specifying and parsing configurations
• configurator library and test: Configuration management
• configurator-export library and test: Pretty printer and exporter for configurations from the "configurator" library.
• configurator-ng library and test: The next generation of configuration management
• configurator-pg library and test: Reduced parser for configurator-ng config files
• conftrack library and test: Tracable multi-source config management
• descrilo library: Loads a list of items with fields
• dojang library, program and test: A cross-platform dotfiles manager
• dotenv library, program and test: Loads environment variables from dotenv files
• dotenv-micro library: Tiny dotenv library
• dyre library and test: Dynamic reconfiguration in Haskell
• embed-config library and test: Reasonable conventions for embedding YAML configuration with Template Haskell
• etc library and test: Declarative configuration spec for Haskell projects
• expresso library, program and test: A simple expressions language based on row types
• from-env library and test: Provides a generic way to construct values from environment variables.
• global-config library and test: Global mutable configuration
• hsini library and test: ini configuration files
• htoml library, test and benchmark: Parser for TOML files
• htoml-megaparsec library, test and benchmark: Parser for TOML files
• ini library and test: Configuration files in the INI format.
• ini-qq library and test: Quasiquoter for INI
• json2sg library, program and test: Lossy conversion from JSON to Sugar
• karabiner-config library and test: Karabiner elements configuration generation
• keylayouts library: Tools for macOS .keylayout files
• life-sync library, program and test: Synchronize personal configs across multiple machines.
• load-env library and tests: Load environment variables from a file.
• minimal-configuration library: Minimal ini like configuration library with a few extras
• richenv library and test: Rich environment variable setup for Haskell
• salak library, test and benchmark: Configuration (re)Loader and Parser.
• salak-toml library, test and benchmark: Configuration Loader for toml
• salak-yaml library, test and benchmark: Configuration Loader for yaml
• SConfig library: A simple config library
• sugar library and test: A pretty, sweet data language
• sugar-data library and test: Convert sugar to common data types for code generation
• sugar-json library and test: Sugar with JSON
• tce-conf library, programs and test: Very simple config file reading
• tini library and test: Tiny INI file and configuration library with a minimal dependency footprint.
• toml-reader library and tests: TOML format parser compliant with v1.0.0.
• tomland library, programs and test: Bidirectional TOML serialization
• typeparams library: ...
• ucl library and test: Datatype and parser for the Universal Configuration Language (UCL) using libucl
• yaml-config library and test: Configuration management

Console

• argparser library and test: Command line parsing framework for console applications
• binance-exports library, program and test: Generate CSV Exports of your Binance Trade History.
• bnb-staking-csvs library, program and test: Generate CSV Exports of Your BNB Staking Rewards.
• buffer-pipe program: Read from stdin and write to stdout in large blocks
• cltw program: Command line Twitter utility
• cmdargs library and program: Command line argument processing
• cmdargs-browser program: Helper to enter cmdargs command lines using a web browser
• cmdtheline library and test: Declarative command-line option parsing and documentation library.
• coalpit library and test: DSV (de)serialization
• configuration-tools library, program and tests: Tools for specifying and parsing configurations
• console-program library: Interpret the command line and a config file as commands and options
• credentials-cli program: Secure Credentials Administration
• csv-to-qif program and test: A small program that will read csv files and create qif files
• cutter program: Cut files according to a position list
• dapi program: Prints a series of dates
• docopt library and test: A command-line interface parser that will make you smile
• epub-tools programs and test: Command line utilities for working with epub files
• epubname program: Rename epub ebook files based on meta information
• equal-files program: Shell command for finding equal files
• flow2dot library, program and test: Library and binary to generate sequence/flow diagrams from plain text source
• follower program: Follow Tweets anonymously
• garepinoh library and programs: reverse prefix notation calculator and calculation library
• gemini-exports library, program and test: Generate CSV Exports of Your Gemini Trades, Transfers, & Earn Transactions
• getopt-generics library and test: Create command line interfaces with ease
• ginsu program: Ginsu Gale Client
• givegif library, program and test: CLI Giphy search tool with previews in iTerm 2
• group-by-date program: Shell command for grouping files by dates into folders
• hable library: customizable pretty printer library for tables
• hascal library and program: tiny calculator library and command-line program
• haskdeep program: Computes and audits file hashes.
• haskell-awk library, program and test: Transform text from the command-line using Haskell expressions.
• haskell-say library and program: Let the Haskell logo talk to your users!
• hello program: Hello World, an example package
• hflags library: Command line flag parser, very similar to Google's gflags
• Hish library and program
• historian program: Extract the interesting bits from shell history
• hledger library, program, test and benchmark: Command-line interface for the hledger accounting system
• hledger-diff program: Compares the transactions in two ledger files.
• hledger-flow library, program and test: An hledger workflow focusing on automated statement import and classification.
• hledger-iadd library, program and test: A terminal UI as drop-in replacement for hledger add
• hledger-makeitso library, program and test: An hledger workflow focusing on automated statement import and classification.
• hledger-stockquotes library, program and test: Generate HLedger Price Directives From Daily Stock Quotes.
• hledger-ui library and program: Terminal interface for the hledger accounting system
• hranker program: Basic utility for ranking a list of items
• hscrtmpl programs: Haskell shell script templates
• hscurses-fish-ex program: hscurses swimming fish example
• hskeleton library: Skeleton for new Haskell programs
• hspresent library and program: A terminal presentation tool
• hsprocess library, program and test: The Haskell Stream Processor command line utility
• hunch program and test: CSS-like syntax for file system manipulation.
• hunp program: Unpacker tool with DWIM
• hunt-server-cli program: A Command line Interface for the Hunt server.
• husky program: A simple command line calculator.
• imj-measure-stdout program: An application to determine the maximum capacity of stdout buffer.
• internetmarke program: Shell command for constructing custom stamps for German Post
• ip6addr program: Commandline tool to deal with IPv6 address text representations
• isocline library, program and test: A portable alternative to GNU Readline
• itemfield library, programs and tests: A brick Widget for selectable summary of many elements on a terminal
• matchers library: Text matchers
• mbox-utility program: List contents of an mbox file containing e-mails
• mdo program: Command-line tool to run a command on each of the items.
• misfortune library and programs: fortune-mod clone
• multiarg library, programs and test: Command lines for options that take multiple arguments
• no-buffering-workaround library: Workaround for GHC bug #2189.
• only program: A grep-like tool for filtering on words or lines.
• opn program: Open files or URLs using associated programs.
• options library and test: Powerful and easy command-line option parser
• options-time library and test: Command-line option types for dates and times.
• parse-help library and test: generate command line arguments from a --help output
• parseargs library, program and test: Parse command-line arguments
• pasty program: A simple command line pasting utility
• pb program: pastebin command line application
• penny library, programs and test: Extensible double-entry accounting system
• penny-bin programs: Deprecated - use penny package instead
• penny-lib programs: Deprecated - use penny package instead
• photoname library, program and test: Rename photo image files based on EXIF shoot date
• print-console-colors library and program: Print all ANSI console colors
• pwstore-cli program and test: Command line interface for the pwstore library
• qhs program and test: Command line tool qhs, SQL queries on CSV and TSV files.
• readline library: An interface to the GNU readline library
• runghc program: runghc replacement for fast repeated runs
• shell-utility library: Utility functions for writing command-line programs
• solana-staking-csvs library, program and test: Generate CSV Exports of your Solana Staking Rewards.
• spelling-suggest library and programs: Spelling suggestion tool with library and command-line interfaces.
• strongswan-sql library, program and test: Interface library for strongSwan SQL backend
• structured-cli library and program: Application library for building interactive console CLIs
• termplot program: Plot time series in your terminal using commands stdout
• themplate program: Project templating tool
• thimk programs: Command-line spelling word suggestion tool
• timecalc program
• tkhs program and test: Simple Presentation Utility
• toilet program: Manage the toilet queue at the IMO
• txt-sushi library and programs: The SQL link in your *NIX chain
• uniq-deep program: uniq-deep
• Win32-console library: Binding to the Win32 console API
• ztail program: Multi-file, colored, filtered log tailer.

Constraint

• constraint library: Reified constraints

Constraints

• attenuation library: Subtyping relations and variance roles
• attenuation-profunctors library: Attenuation support for Profunctors.
• cluss library: simple alternative to type classes
• constraints library and test: Constraint manipulation
• constraints-deriving library, program and test: Manipulating constraints and deriving class instances programmatically.
• constraints-emerge library and test: Defer instance lookups until runtime
• constraints-extras library and program: Utility package for constraints
• csp library and test: Discrete constraint satisfaction problem (CSP) solver.
• dependent-literals library: Library for dependent-literals-plugin
• dependent-literals-plugin library and tests: Dependent integer literals
• exists library: Existential datatypes holding evidence of constraints
• ffunctor library and test: FFunctor typeclass
• ifscs library and test: An inductive-form set constraint solver
• iterative-forward-search library and benchmark: An IFS constraint solver
• mios library, programs and test: A Minisat-based CDCL SAT solver in Haskell
• nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
• pseudo-boolean library and test: Reading/Writing OPB/WBO files used in pseudo boolean competition
• snumber library: Integer singletons with flexible representation
• some-dict-of library and test: Carry evidence of constraints around
• superconstraints library: Access an instance's constraints
• Top library and program: Constraint solving framework employed by the Helium Compiler.
• toysolver library, programs, tests and benchmarks: Assorted decision procedures for SAT, SMT, Max-SAT, PB, MIP, etc
• trivial-constraint library: Constraints that any type, resp. no type fulfills
• unconstrained library: Null constraint

Consul

• boots-cloud library: Factory for quickly building a microservice

Containers

• cybus library, program and test: multi-dimensional arrays
• expiring-containers library and test: Expiring containers
• focus library and test: A general abstraction for manipulating elements of container data structures
• int-multimap library and test: A data structure that associates each Int key with a set of values
• keys library: Keyed functors and containers
• mono-traversable-keys library: Type-classes for interacting with monomorphic containers with a key
• total-maps library: Dense and sparse total maps.

Contract

• assert-failure library: Syntactic sugar improving 'assert' and 'error'

Contracts

• eths-rlp library and tests: Ethereum Recursive Length Prefix Encoding

Contravariant

• co-log library, programs and tests: Composable Contravariant Comonadic Logging Library
• co-log-concurrent library: Asynchronous backend for co-log library
• co-log-core library and test: Composable Contravariant Comonadic Logging Library
• co-log-polysemy library and program: Composable Contravariant Comonadic Logging Library
• contra-tracers library: ...

Control

• AAI library: Abstract Application Interface.
• AbortT-monadstf library: Monads-tf instances for the AbortT monad transformer.
• AbortT-mtl library: mtl instances for the AbortT monad transformer
• AbortT-transformers library and test: A monad and monadic transformer providing "abort" functionality
• abstract-par library: Type classes generalizing the functionality of the 'monad-par' library.
• acme-iot library: IO monad transformer
• action-permutations library: Execute a set of actions (e.g. parsers) in each possible order
• Adaptive-Blaisorblade library and program: Library for incremental computing.
• allocated-processor library: Functional combinators for monadic actions that require allocation and de-allocation
• alternative-extra library: Extra utilities for alternatives
• alternators library: Handy functions when using transformers.
• annihilator library: Semigroups with annihilators and utility functions
• annotated-exception library and test: Exceptions, with checkpoints and context.
• ap-normalize library and tests: Self-normalizing applicative expressions
• apart library, program and test: Get all your structure and rip it apart.
• apecs library, test and benchmark: Fast Entity-Component-System library for game programming
• apecs-stm library: STM stores for apecs
• applicative-extras library: Instances for Applicative
• applicative-fail library and test: Applicative functor and monad which collects all your fails
• applicative-logic library: Generalized logic operations for Applicative and Alternative functors
• applicative-splice library: Write applicative programs in direct style (generalizes idiom brackets).
• arity-generic-liftA library and test: Provides an arity-generic version of the liftA2, liftA3... liftAn functions.
• arrow-extras library: Extra functions for Control.Arrow
• arrow-improve library: Improved arrows.
• arrow-list library: List arrows for Haskell.
• arrow-utils library and test: functions for working with arrows
• arrowapply-utils library: Utilities for working with ArrowApply instances more naturally
• arrows library: Arrow classes and transformers
• artery library: A simple, arrow-based reactive programming
• assert library and test: Helpers for Control.Exception.assert
• assert-failure library: Syntactic sugar improving 'assert' and 'error'
• async-refresh library and test: Package implementing core logic for refreshing of expiring data.
• async-refresh-tokens library and test: Package implementing core logic for refreshing of expiring access tokens
• asynchronous-exceptions library: Distinguish between synchronous and asynchronous exceptions
• atl library: Arrow Transformer Library
• attoparsec-trans library: Interleaved effects for attoparsec parsers
• auto library: Denotative, locally stateful programming DSL & platform
• auto-update library and test: Efficiently run periodic, on-demand actions
• backtracking library and test: A backtracking monad
• backtracking-exceptions library: A monad transformer for backtracking exceptions
• backward-state library: A state monad that runs the state in reverse through the computation
• barrier-monad library: Implementation of barrier monad, can use custom front/back type
• basic-prelude library: An enhanced core prelude; a common foundation for alternate preludes.
• billeksah-main program: Leksah plugin base
• billeksah-main-static program: Leksah plugin base
• billeksah-services library: Leksah library
• bluefin-algae library and tests: Algebraic effects and named handlers in Bluefin.
• boolean-like library: ...
• box library and test: A profunctor effect system?
• break library: Break from a loop
• bytestring-progress library: A library for tracking the consumption of a lazy ByteString
• bytestring-rematch library and test: Rematch support for ByteString
• can-i-haz library and test: Generic implementation of the Has and CoHas patterns
• capability library and test: Extensional capabilities and deriving combinators
• capataz library and test: OTP-like supervision trees in Haskell
• caps library and test: Monadic capabilities with late binding
• cas-hashable library: A hashing class for content-addressed storage
• cas-hashable-s3 library: ContentHashable instances for S3 objects
• cas-store library and test: A content-addressed storage
• Cascade library: Playing with reified categorical composition
• Catana library: A monad for complex manipulation of a stream.
• catch-fd library: MonadThrow and MonadCatch, using functional dependencies
• categories library: Categories
• category library: Categorical types and classes
• category-extras library: A meta-package documenting various packages inspired by category theory
• CC-delcont library: Delimited continuations and dynamically scoped variables
• CC-delcont-alt library and test: Three new monad transformers for multi-prompt delimited control
• CC-delcont-cxe library: A monad transformers for multi-prompt delimited control
• CC-delcont-exc library: A monad transformers for multi-prompt delimited control
• CC-delcont-ref library: A monad transformers for multi-prompt delimited control using refercence cells
• CC-delcont-ref-tf library: A monad transformers for multi-prompt delimited control using refercence cells
• cflp library: Constraint Functional-Logic Programming in Haskell
• ChannelT library: Generalized stream processors
• chr-core library: Constraint Handling Rules
• churros library and test: Channel/Arrow based streaming computation library.
• classy-effects library and test: An interface for a handler-independent, typeclass-based effect system.
• classy-effects-base library and test: An interface for a handler-independent, typeclass-based effect system.
• classy-effects-th library and test: Automatic compliance with the classy-effects protocols
• classy-parallel library: Fork of the monad-parallel package using monad-control
• classy-prelude library and test: A typeclass-based Prelude.
• classy-prelude-conduit library and test: classy-prelude together with conduit functions
• classy-prelude-yesod library: Provide a classy prelude including common Yesod functionality.
• ClassyPrelude library: Prelude replacement using classes instead of concrete types where reasonable
• Clean library: A light, clean and powerful utility library
• cleff library and tests: Fast and concise extensible effects
• cleff-plugin library and test: Automatic disambiguation for extensible effects
• cloud-haskell library: The Cloud Haskell Application Platform
• co-log-effectful library and test: effectful log effect using co-log-core
• codecov-haskell library, programs and test: Codecov.io support for Haskell.
• coercible-utils library, test and benchmark: Utility functions for Coercible types
• commandert library and test: A monad for commanders
• comonad library: Comonads
• comonad-extras library: Exotic comonad transformers
• comonad-random library: Comonadic interface for random values
• comonad-transformers library: This package has been merged into comonad 4.0
• comonads-fd library: This package has been merged into comonad 4.0
• ComonadSheet library: A library for expressing spreadsheet-like computations as the fixed-points of comonads.
• Compactable library: A generalization for containers that can be stripped of Nothing
• compactable library and test: A typeclass for structures which can be catMaybed, filtered, and partitioned.
• composition-prelude library: Higher-order function combinators
• computations library: Advanced notions of computation
• concatenative library: A library for postfix control flow.
• concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
• concurrent-state library and program: MTL-like library using TVars
• Concurrential library: Mix concurrent and sequential computation
• cond library: Basic conditional and boolean operators with monadic variants.
• conduino library: Lightweight composable continuation-based stream processors
• Configurable library: Declare types as Configurable then specialize them all in one place
• conkin library and tests: Tools for functors from Hask^k to Hask
• constrained-categories library: Constrained clones of the category-theory type classes, using ConstraintKinds.
• constrained-monads library, test and benchmark: Typeclasses and instances for monads with constraints.
• constrained-normal library: Normalised Deep Embeddings for Constrained Type-Class Instances
• constraint-manip library: Some conviencience type functions for manipulating constraints.
• ConstraintKinds library: Repackages standard type classes with the ConstraintKinds extension
• constrictor library: strict versions of many things in base
• ContArrow library: Control.Arrow.Transformer.Cont
• continue library: Monads with suspension and arbitrary-spot reentry
• contravariant library: Contravariant functors
• contravariant-extras library: Extras for the "contravariant" package
• control library: Class of monad transformers which control operations can be lifted thru
• control-block library: Higher-order functions with their function arguments at the end, ...
• control-bool library: Useful combinators for boolean expressions
• control-dotdotdot library: Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`.
• control-dsl library and test: An alternative to monads in do-notation
• Control-Engine library: A parallel producer/consumer engine (thread pool)
• control-event library and tests: Event scheduling system.
• control-invariants library: Invariants and contract monitoring
• control-iso library: A typeclass for type isomorphisms
• control-monad-exception library: Explicitly typed, checked exceptions with stack traces
• control-monad-exception-monadsfd library: Monads-fd instances for the EMT exceptions monad transformer
• control-monad-exception-monadstf library: Monads-tf instances for the EMT exceptions monad transformer
• control-monad-exception-mtl library: MTL instances for the EMT exceptions monad transformer
• control-monad-failure library: A class for monads which can fail with an error. (deprecated)
• control-monad-failure-mtl library: A class for monads which can fail with an error for mtl 1 (deprecated)
• control-monad-free library: Free monads and monad transformers
• control-monad-loop library: Simple monad transformer for imperative-style loops
• Control-Monad-MultiPass library and test: A Library for Writing Multi-Pass Algorithms.
• control-monad-omega library, test and benchmark: A breadth-first list monad.
• control-monad-queue library: Reusable corecursive queues, via continuations.
• Control-Monad-ST2 library and test: A variation on the ST monad with two type parameters.
• control-timeout library: Timeout handling
• contstuff library: Fast, easy to use CPS-based monad transformers
• contstuff-monads-tf library: ContStuff instances for monads-tf transformers (deprecated)
• contstuff-transformers library: Deprecated interface between contstuff 0.7.0 and the transformers package
• conversion library: Universal converter between values of different types
• conversion-bytestring library: "Conversion" instances for the "bytestring" library
• conversion-case-insensitive library: "Conversion" instances for the "case-insensitive" library
• conversion-text library: "Conversion" instances for the "text" library
• corecursive-main library, program and test: Write your main like it can call itself back.
• Coroutine library: Type-safe coroutines using lightweight session types.
• coroutine-object library: Object-oriented programming realization using coroutine
• coverage library and test: Exhaustivity Checking Library
• cr program: Code review tool
• crem library, programs and tests: Compositional representable executable machines
• csp library and test: Discrete constraint satisfaction problem (CSP) solver.
• custom-prelude library: An enhanced prelude, serving as a foundation for my projects
• daemons library, programs and test: Daemons in Haskell made fun and easy
• data-effects library and test: A basic framework for effect systems based on effects represented by GADTs.
• data-effects-core library and test: A basic framework for effect systems based on effects represented by GADTs.
• data-effects-th library and test: Template Haskell utilities for the data-effects library.
• data-fresh library: Interface and functor transformers for fresh values
• data-lens library: Used to be Haskell 98 Lenses
• data-lens-fd library: Lenses
• data-lens-ixset library and test: A Lens for IxSet
• decepticons library: The categorical dual of transformers.
• deep-transformations library and test: Deep natural and unnatural tree transformations, including attribute grammars
• DeepArrow library: Arrows for "deep application"
• deepcontrol library and tests: ...
• deepseq library and test: Deep evaluation of data structures
• deepseq-bounded library and test: Bounded deepseq, including support for generic deriving
• deepseq-generics library and test: GHC.Generics-based Control.DeepSeq.rnf implementation
• deepseq-instances library: Candidate NFData Instances for Types in base
• deepseq-magic library: Deep evaluation of data structures without NFData
• deepseq-th library and test: Template Haskell based deriver for optimised NFData instances
• demarcate library and test: Demarcating transformed monad.
• dep-t library and tests: Dependency injection for records-of-functions.
• dep-t-advice library, tests and benchmark: Giving good advice to functions in records-of-functions.
• dep-t-dynamic library and tests: A dynamic environment for dependency injection.
• dep-t-value library and test: Pair resources files with types within your program.
• deriving-trans library: Derive instances for monad transformer stacks
• despair library: Despair
• disposable library: Allows storing different resource-releasing actions together.
• distributed-closure library, program and test: Serializable closures for distributed programming.
• distributed-fork library and test: Like 'forkIO', but uses remote machines instead of local threads.
• distributed-fork-aws-lambda library and test: AWS Lambda backend for distributed-fork.
• distributed-process library and benchmarks: Cloud Haskell: Erlang-style concurrency in Haskell
• distributed-process-async library and test: Cloud Haskell Async API
• distributed-process-azure library and programs: Microsoft Azure backend for Cloud Haskell
• distributed-process-client-server library and tests: The Cloud Haskell Application Platform
• distributed-process-execution library and tests: Execution Framework for The Cloud Haskell Application Platform
• distributed-process-extras library and tests: Cloud Haskell Extras
• distributed-process-fsm library and test: The Cloud Haskell implementation of Erlang/OTP gen_statem
• distributed-process-lifted library and test: monad-control style typeclass and transformer instances for Process monad.
• distributed-process-monad-control library: Orphan instances for MonadBase and MonadBaseControl.
• distributed-process-platform library, program and tests: The Cloud Haskell Application Platform
• distributed-process-registry library and test: Cloud Haskell Extended Process Registry
• distributed-process-simplelocalnet library and test: Simple zero-configuration backend for Cloud Haskell
• distributed-process-supervisor library and tests: Supervisors for The Cloud Haskell Application Platform
• distributed-process-systest library: Cloud Haskell Test Support
• distributed-process-task library and test: Task Framework for The Cloud Haskell Application Platform
• distributed-process-tests library and tests: Tests and test support tools for distributed-process.
• distributed-process-zookeeper library, program and test: A Zookeeper back-end for Cloud Haskell.
• distributed-static library: Compositional, type-safe, polymorphic static values and closures
• do-notation-dsl library and test: An alternative to monads
• drinkery library: Boozy streaming library
• edenmodules library: Semi-explicit parallel programming library
• effect-handlers library, test and benchmark: ...
• effect-monad library: ...
• effect-stack library: Reducing the pain of transformer stacks with duplicated effects
• effectful library, test and benchmark: An easy to use, performant extensible effects library.
• effectful-core library: An easy to use, performant extensible effects library.
• effectful-plugin library and test: A GHC plugin for improving disambiguation of effects.
• effectful-th library and test: Template Haskell utilities for the effectful library.
• effects library: Computational Effects
• effects-parser library: Parser Effect for the Control.Effects Library
• effet library and test: An Effect System based on Type Classes
• effin library: A Typeable-free implementation of extensible effects
• either library and test: Combinators for working with sums
• EitherT library: EitherT monad transformer
• elevator library: Immediately lifts to a desired level
• elision library and program: Arrows with holes.
• Empty library: A type class for empty containers
• enclosed-exceptions library and test: Catching all exceptions from within an enclosed computation
• enum-text-rio library and program: Making fmt available with rio
• error-context library and test: Provides API for enriching errors with contexts
• error-continuations library: Error Continuations
• error-list library: A useful type for collecting error messages.
• errorcall-eq-instance library and test: An orphan Eq instance for ErrorCall
• errors library: Simplified error-handling
• errors-ext library and test: `bracket`-like functions for `ExceptT` over `IO` monad.
• Etage library: A general data-flow framework
• eternal library: everything breaking the Fairbairn threshold
• ether library, test and benchmark: Monad transformers and classes
• eveff library: Efficient effect handlers based on evidence translation.
• event-driven library: library for event driven programming
• event-handlers library: Event handlers
• event-monad library: Event-graph simulation monad transformer
• event-transformer library, program and test: Initial project template from stack
• exception-monads-fd library: Exception monad transformer instances for monads-fd classes.
• exception-monads-tf library: Exception monad transformer instances for monads-tf classes.
• exception-mtl library: Exception monad transformer instances for mtl classes.
• exception-transformers library and test: Type classes and monads for unchecked extensible exceptions.
• exceptional library: Essentially the Maybe type with error messages.
• exceptions library and test: Extensible optionally-pure exceptions
• exceptiot library and test: ExceptT, but uses IO instead of Either
• exhaustive library: ...
• exitcode library and test: Monad transformer for exit codes
• explicit-exception library and programs: Exceptions which are explicit in the type signature.
• explicit-sharing library: Explicit Sharing of Monadic Effects
• extensible-effects library, test and benchmark: An Alternative to Monad Transformers
• extensible-effects-concurrent library, programs, test and benchmark: Message passing concurrency as extensible-effect
• extensible-exceptions library: Extensible exceptions
• failable library: A 'Failable' error monad class to unify failure across monads that can fail
• FailT library and tests: A 'FailT' monad transformer that plays well with 'MonadFail'
• failure library: A simple type class for success/failure computations. (deprecated)
• FailureT library: Failure Monad Transformer
• FastPush library: A monad and monad transformer for pushing things onto a stack very fast.
• feature-flags library: A simple library for dynamically enabling and disabling functionality.
• fmt-for-rio library: Adaptor for getting fmt to work with rio
• fold-debounce library and tests: Fold multiple events that happen in a given period of time.
• foldl library, test and benchmarks: Composable, streaming, and efficient left folds
• foldl-exceptions library and test: Exception handling with FoldM
• foldl-incremental library, test and benchmark: incremental folds
• foldl-transduce library, tests and benchmark: Transducers for foldl folds.
• foldl-transduce-attoparsec library and tests: Attoparsec and foldl-transduce integration.
• for-free library: Functor, Monad, MonadPlus, etc for free
• forbidden-fruit library and test: A library accelerates imperative style programming.
• forest library: Tree and Forest types
• ForkableT library: Forkable monad transformers
• free library: Monads for free
• free-algebras library and test: Free algebras
• free-applicative-t library and test: Free Applicative Transformer
• free-categories library: free categories
• free-category library, test and benchmark: efficient data types for free categories and arrows
• free-er library and program: An extensible effects library
• free-listt library and test: Lawful list and set monad transformers based on free monads
• free-operational library and test: Operational Applicative, Alternative, Monad and MonadPlus from free types.
• free-vl library, program and test: van Laarhoven encoded Free Monad with Extensible Effects
• freer library, program, test and benchmark: Implementation of the Freer Monad
• freer-effects library, program, tests and benchmark: Implementation of effect system for Haskell.
• freer-simple library, program, test and benchmark: A friendly effect system for Haskell.
• freer-simple-catching library and test: Checked runtime exceptions with freer-simple
• freer-simple-http library and test: Make HTTP requests with freer-simple!
• freer-simple-profiling library and test: Automatic profling of freer-simple programs
• freer-simple-random library and test: Random number generators using freer-simple
• freer-simple-time library and test: freer-simple interface to IO based time functions
• fresnel library and test: high-powered optics in a small package
• fresnel-fused-effects library: fresnel/fused-effects integration
• from-sum library and test: Combinators for working with Maybe and Either
• frpnow library: Principled practical FRP
• frpnow-gloss library: Program awesome stuff with Gloss and frpnow!
• frpnow-gtk library: Program GUIs with GTK and frpnow!
• frpnow-vty library and program: Program terminal applications with vty and frpnow!
• fsharp library: some F# operators, high priority pipes
• full-sessions library: a monad for protocol-typed network programming
• function-combine library: Combining functions
• functor library: Functors
• functor-apply library: This package has been subsumed by semigroupoids
• functors library: (.:) and friends, syntax for Functor and Applicative.
• funflow library, program and tests: Workflows with arrows
• fused-effects library, tests and benchmark: A fast, flexible, fused effect system.
• fused-effects-exceptions library and tests: Handle exceptions thrown in IO with fused-effects.
• fused-effects-lens library and test: Monadic lens combinators for fused-effects.
• fused-effects-mwc-random library, test and benchmark: High-quality random number generation as an effect.
• fused-effects-optics library: Bridge between the optics and fused-effects ecosystems.
• fused-effects-random library: Random number generation for fused-effects.
• fused-effects-resumable library: Resumable exceptions for the fused-effects ecosystem.
• fused-effects-squeal library: A fused-effects adapter for squeal-postgresql.
• fused-effects-th library and test: Template Haskell helpers for fused-effects.
• future-resource library: realtime resource handling with manual concurrency
• gang-of-threads library: Non-deterministic parallelism with bags
• garlic-bread library and test: A monad transformer for keeping track of where you've come from.
• gas library: Limit how many steps a program may take.
• general-allocate library: Exception-safe resource management in more monads
• general-prelude library: Prelude replacement using generalized type classes where possible
• generator library: Python-generators notation for creation of monadic lists
• generators library: Actually useful monadic random value generators.
• generic-deepseq library: Generic deep evaluation of data structures
• Get library and test: get stuff out of stuff
• ghc-call-stack-extras library: Extra utilities for HasCallStack
• gooey library: Graphical user interfaces that are renderable, ...
• GotoT-transformers library: A monad and monadic transformer providing "goto" functionality
• grab library, test and benchmarks: Applicative non-linear consumption
• graphted library: Graph indexed monads.
• groupoids library: This package has been absorbed into semigroupoids 4.0
• hasim library: Process-Based Discrete Event Simulation library
• hask library: Categories
• haskell-cnc library and program: Library for parallel programming in the Intel Concurrent Collections paradigm.
• hcron library: A simple job scheduler, which just runs some IO action at a given time.
• hdph library and programs: Haskell distributed parallel Haskell
• hdph-closure library: Explicit closures in Haskell distributed parallel Haskell
• hedis-effectful library: Adaptation of the hedis library for the effectful ecosystem.
• heftia library and test: higher-order algebraic effects done right
• heftia-effects library, programs, test and benchmark: higher-order algebraic effects done right
• hierarchical-env library and test: hierarchical environments for dependency injection
• hmk library and program: A make alternative based on Plan9's mk.
• hoist-error library: Some convenience facilities for hoisting errors into a monad
• hpc library: Code Coverage Library for Haskell
• hpc-coveralls library, programs and test: Coveralls.io support for Haskell.
• hpc-lcov library, program and test: Convert HPC output into LCOV format
• hreader library and test: Generalization of MonadReader and ReaderT using hset
• hs-di library, program and test: Dependency Injection library for Haskell
• hspec-monad-control library: Orphan instances of MonadBase and MonadBaseControl for SpecM
• hsPID library and test: PID control loop
• hyperfunctions library: Hyperfunctions
• if library: (?) and (?>) conditional operator
• ifcxt library and test: put if statements within type constraints
• IfElse library: Anaphoric and miscellaneous useful control-flow
• ImperativeHaskell library: A library for writing Imperative style haskell.
• implicit-logging library: A logging framework built around implicit parameters.
• ImpSpec library and test: ...
• in-other-words library and test: A higher-order effect system where the sky's the limit
• index-core library: Indexed Types
• indexed library: Haskell98 indexed functors, monads, comonads
• indexed-extras library: Indexed functors, monads and comonads that require extensions to Haskell98
• indexed-free library: indexed monads for free
• indexed-transformers library: Atkey indexed monad transformers
• indextype library and test: A series of type families and constraints for "indexable" types.
• InfixApplicative library: liftA2 for infix operators.
• inject-function library: Monadic functions with injected parameters.
• instance-control library: Controls how the compiler searches for instances using type families.
• interchangeable library: A type class for interchangeable data.
• interleave library: Combinators for supporting interleaving of different behaviours
• interruptible library and test: Monad transformers that can be run and resumed later, conserving their context.
• interspersed library: An abstraction over interspersing monadic actions
• invariant library and test: Haskell98 invariant functors
• invertible library and test: bidirectional arrows, bijective functions, and invariant functors
• invertible-hlist library: invertible functions and instances for HList
• io-choice library and test: Choice for IO and lifted IO
• io-classes library and tests: Type classes for concurrency with STM, ST and timing
• io-classes-mtl library: Experimental MTL instances for io-classes
• io-reactive library and program: An API for generating TIMBER style reactive objects.
• io-region library and test: Exception safe resource management with dynamic regions
• iotransaction library: Supports the automatic undoing of IO operations when an exception is thrown.
• ixmonad library: Embeds effect systems into Haskell using parameteric effect monads
• joint library: Trying to compose non-composable
• json-tracer library and tests: A polymorphic, type-safe, json-structured tracing library
• JuicyPixels-util library: Convert JuicyPixel images into RGBA format, flip, trim and so on
• kindly-functors library and test: A category polymorphic `Functor` typeclass
• Kleislify library: Variants of Control.Arrow functions, specialised to kleislis.
• Kriens library: Category for Continuation Passing Style
• lambda-devs library, program and test: a Paralell-DEVS implementaion based on distributed-process
• lawless-concurrent-machines library, tests and benchmark: Concurrent networked stream transducers
• lax library: Lax arrows
• layers library: Modular type class machinery for monad transformer stacks.
• lazy library: Explicit laziness for Haskell
• lazy-bracket library and tests: A bracket with lazy resource allocation.
• lazy-priority-queue library, program and test: Lazy-Spined Monadic Priority Queues
• lazyio library and program: Run IO actions lazily while respecting their order
• lazyio-applicative library: LazyIO applicative for asymptotic performance
• lens-filesystem library and test: Lens interface for your filesystem; still a bit experimental
• lens-misc library: Miscellaneous lens utilities.
• lens-tell library: MonadTell-based lens combinators
• lens-tutorial library and test: Tutorial for the lens library
• lensref library and test: References which can be joined and on which lenses can be applied
• lenz-mtl library: mtl operations with Van Laarhoven lenses
• level-monad library: Non-Determinism Monad for Level-Wise Search
• lifted-base library, test and benchmark: lifted IO operations from the base library
• lifted-base-tf library, test and benchmark: lifted IO operations from the base library
• List library: List monad transformer and class
• list-t library and test: ListT done right
• list-transformer library and test: List monad transformer
• ListT library and test: List transformer
• little-rio library: When you need just the RIO monad
• local-search library: Generalised local search within Haskell, for applications in combinatorial optimisation.
• log-effect library and program: An extensible log effect using extensible-effects
• log-effect-syslog library: Syslog functions for log-effect
• LogicGrowsOnTrees library, programs, tests and benchmarks: a parallel implementation of logic programming using distributed tree exploration
• LogicGrowsOnTrees-MPI library and programs: an adapter for LogicGrowsOnTrees that uses MPI
• LogicGrowsOnTrees-network library, programs and test: an adapter for LogicGrowsOnTrees that uses multiple processes running in a network
• LogicGrowsOnTrees-processes library, programs, test and benchmark: an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism
• logicst library: Backtracking mutable references in the ST and IO monads
• logict library, program and test: A backtracking logic-programming monad.
• logict-sequence library, tests and benchmark: A backtracking logic-programming monad with asymptotic improvements to msplit
• loop library, test and benchmarks: Fast loops (for when GHC can't optimize forM_)
• loop-dsl library and test: monadic loop dsl.
• loop-effin library: control-monad-loop port for effin
• loop-while library: A monad transformer supporting various styles of while loop
• loops library, test and benchmark: Fast imperative-style loops
• machinecell library and tests: Arrow based stream transducers
• machines library and benchmark: Networked stream transducers
• machines-attoparsec library and test: Parse machines streams with attoparsec parsers.
• machines-bytestring library: ByteString support for machines
• machines-encoding library: Transcode encodings with machines.
• managed library: A monad for managed values
• map-classes library: A set of classes and instances for working with key/value mappings.
• map-reduce-folds library, tests and benchmark: foldl wrappers for map-reduce
• MaybeT library: MaybeT monad transformer
• MaybeT-monads-tf library: MaybeT monad transformer compatible with monads-tf (deprecated)
• MaybeT-transformers library: MaybeT monad transformer using transformers instead of mtl.
• mealstrom library and test: Manipulate FSMs and store them in PostgreSQL.
• mech library: mecha are the most complex composite machines known to humanity, lets build them well!
• Mecha library: mecha are the most complex composite machines known to humanity, lets build them well!
• Mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
• mechs library: mecha are the most complex composite machines known to humanity, lets build them well!
• memo-ptr library: Pointer equality memoization
• memoization-utils library and test: Utilities for memoizing functions
• meta-par library: Provides the monad-par interface, but based on modular scheduler "mix-ins".
• metaheuristics library: Generalised local search within Haskell, for applications in combinatorial optimisation.
• method library and test: rebindable methods for improving testability
• MHask library: The category of monads
• micro-recursion-schemes library and test: Simple recursion schemes
• midair library: Hot-swappable FRP
• minioperational library: fast and simple operational monad
• MissingM library and test: findM and other missing 'M's
• mix-arrows library: Mixing effects of one arrow into another one
• mmorph library: Monad morphisms
• mmtl library: Modular Monad transformer library
• mmtl-base library: MonadBase type-class for mmtl
• modular-prelude library: A new Prelude featuring first class modules
• modular-prelude-classy library: Reifying ClassyPrelude a la ModularPrelude
• moffy library and test: Monadic Functional Reactive Programming
• moffy-samples library and test: Samples of moffy
• moffy-samples-events library and test: Events for sample codes of moffy
• moffy-samples-gtk3 program and test: Sample executables of moffy - GTK3 version
• moffy-samples-gtk3-run library and test: Package to run moffy samples - GTK3 version
• moffy-samples-gtk4 program and test: Sample executables of moffy - GTK4 version
• moffy-samples-gtk4-run library and test: Package to run moffy samples - Gtk4 version
• monad-abort-fd library: A better error monad transformer
• monad-atom library: Monadically convert object to unique integers and back.
• monad-atom-simple library: Monadically map objects to unique ints.
• monad-batcher library: An applicative monad that batches commands for later more efficient execution
• monad-bool library: This package has been removed.
• monad-choice library: Monad, monad transformer, and typeclass representing choices.
• monad-chronicle library: These as a transformer, ChronicleT
• monad-classes library and test: more flexible mtl
• monad-codec library: Monadic conversion between complex data structures and unique integers
• monad-connect library: Transformer for TCP connection with TLS and SOCKS support
• monad-control library: Lift control operations, like exception catching, through monad transformers
• monad-control-aligned library: Lift control operations, like exception catching, through monad transformers
• monad-control-identity library: Stronger classes than monad-control
• monad-coroutine library: Coroutine monad transformer for suspending and resuming monadic computations
• monad-dijkstra library and tests: A monad transformer for weighted graph searches
• monad-exception library: Exstensible monadic exceptions
• monad-extras library: Extra utility functions for working with monads
• monad-finally library: Guard monadic computations with cleanup actions
• monad-fork library: Type class for monads which support a fork operation.
• monad-hash library and test: Monad transformer for incremental hashing
• monad-ideals library and test: Ideal Monads and coproduct of them
• monad-introspect library: A reader monad that gives the environment access to the entire transformer stack
• monad-io-adapter library and test: Adapters between MonadIO and MonadBase IO.
• monad-journal library: Pure logger typeclass and monad transformer
• monad-levels library: Specific levels of monad transformers
• monad-lgbt library and test: Monad transformers for combining local and global state.
• monad-loops library and test: Monadic loops
• monad-loops-stm library: Monadic loops for STM
• monad-markov library: Markov process monad
• monad-memo library, test and benchmark: Memoization monad transformer
• monad-mersenne-random library: An efficient random generator monad, based on the Mersenne Twister
• monad-open library: Open recursion for when you need it
• monad-ox library: Monad for observation extraction
• monad-par library and test: A library for parallel programming based on a monad
• monad-par-extras library: Combinators and extra features for Par monads
• monad-parallel library: Parallel execution of monadic computations
• monad-parallel-progressbar library: Parallel execution of monadic computations with a progress bar
• monad-param library: Parameterized monads
• monad-peel library and test: Lift control operations like exception catching through monad transformers
• monad-products library: Monad products
• monad-ran library: Fast monads and monad transformers
• monad-resumption library: Resumption and reactive resumption monads for Haskell.
• monad-skeleton library: Monads of program skeleta
• monad-st library: Provides a MonadST class
• monad-state library: Utility library for monads, particularly those involving state.
• monad-ste library and test: ST monad with efficient explicit errors
• monad-stm library: MonadSTM class analogous to MonadIO
• monad-supply library: Stateful supply monad
• monad-task library: A monad transformer that turns event processing into co-routine programming.
• monad-time library and test: Type class for monads which carry the notion of the current time.
• monad-time-effectful library: Adaptation of the monad-time library for the effectful ecosystem.
• monad-timing library and tests: Monad transformer for recording timing events
• monad-tree library: Tree data structure for nondeterministic computations.
• monad-tx library: A transactional state monad.
• monad-unlift library: Typeclasses for representing monad transformer unlifting
• monad-unlift-ref library: Typeclasses for representing monad transformer unlifting
• monad-validate library and test: A monad transformer for data validation.
• monad-wrap library: Wrap functions such as catch around different monads
• monadbi library: Extract underlying monads from monad transformers
• MonadCatchIO-mtl library: Monad-transformer version of the Control.Exception module
• MonadCatchIO-mtl-foreign library: Polymorphic combinators for working with foreign functions
• MonadCatchIO-transformers library: Monad-transformer compatible version of the Control.Exception module
• MonadCatchIO-transformers-foreign library: Polymorphic combinators for working with foreign functions
• monadcryptorandom library: A monad for using CryptoRandomGen
• monadfibre library: Monadic functions which provide Choice and Parallelism.
• monadic-recursion-schemes library and test: Recursion Schemes for Monadic version.
• monadiccp library and test: Constraint Programming
• monadiccp-gecode library and test: Constraint Programming
• monadio-unwrappable library: Reversibly allow monad transformer stacks to run in IO
• monadLib-compose library: Arrow-like monad composition for monadLib.
• monadlist library: Monadic versions of list functions
• monadloc library: A class for monads which can keep a monadic call trace
• monadloc-pp program: A preprocessor for generating monadic call traces
• monadplus library: Haskell98 partial maps and filters over MonadPlus.
• MonadPrompt library: MonadPrompt, implementation & examples
• MonadRandom library: Random-number generation monad.
• MonadRandomLazy library: Lazy monad for psuedo random-number generation.
• monads-fd library: Monad classes, using functional dependencies
• monads-tf library: Monad classes, using type families
• MonadStack library: Generalizing lift to monad stacks
• Monatron library: Monad transformer library with uniform liftings
• Monatron-IO library: MonadIO instances for the Monatron transformers.
• monoidal-functors library and program: Monoidal Functors Library
• moo-nad library and test: Invocation helpers for the ReaderT-record-of-functions style.
• more-extensible-effects library: Initial project template from stack
• morphisms library: It's all about functions
• morphisms-functors library: Functors, theirs compositions and transformations
• morphisms-functors-inventory library: Inventory is state and store
• morphisms-objects library: Algebraic structures
• motor library, program and test: Type-safe effectful state machines in Haskell
• motor-diagrams library and test: Generate state diagrams from Motor FSM typeclasses
• motor-reflection library and test: Reflect on Motor FSM typeclasses to obtain runtime representations
• mpeff library: Efficient effect handlers based on evidence-passing semantics
• mtl library: Monad classes for transformers, using functional dependencies
• mtl-evil-instances library: Instances for the mtl classes for all monad transformers.
• mtl-extras library: Higher order versions of MTL classes
• mtl-misc-yj library and test: tribial tools about mtl
• mtl-tf library: Monad Transformer Library with Type Families
• mtl-unleashed library and test: MTL classes without the functional dependency
• mtl-uplift library and test: Lift substacks of monad transformer stacks
• mtlx library: Monad transformer library with type indexes, providing 'free' copies.
• mtsl library: Reified monad transformer stacks
• multipass library: Folding data with multiple named passes
• multistate library, program and test: like mtl's ReaderT / WriterT / StateT, but more than one contained value/type.
• multiwalk library, test and benchmark: Traverse data types via generics, acting on multiple types simultaneously.
• mvc library: Model-view-controller
• mvc-updates library: Concurrent and combinable updates
• mzv library: Implementation of the "Monads, Zippers and Views" (Schrijvers and Oliveira, ICFP'11)
• named library and test: Named parameters (keyword arguments) for Haskell
• natural library and test: Natural number
• natural-transformation library and test: A natural transformation package.
• needle library: ASCII-fied arrow notation
• newtype library: A typeclass and set of functions for working with newtypes.
• newtype-deriving library: Instance derivers for newtype wrappers
• newtype-generics library, test and benchmark: A typeclass and set of functions for working with newtypes
• newtype-th library: A template haskell deriver to create Control.Newtype instances.
• newtyper library: Extra functions for the Control.Newtype typeclass
• nondeterminism library and test: A monad and monad transformer for nondeterministic computations.
• nqe library and test: Concurrency library in the style of Erlang/OTP
• Object library: Object oriented programming for haskell using multiparameter typeclasses.
• objective library: Composable objects
• observable library: Continuation patterns
• op library and test: Common operators encouraging large-scale easy reading
• open-signals library and test: A mechanism similar to checked exceptions that integrates with MTL and transformer stacks
• operational library and program: Implementation of difficult monads made easy with operational semantics.
• operational-class library: MonadProgram typeclass for the operational package
• overload library: Finite overloading
• pandora library: A box of patterns and paradigms
• pandora-io library: ...
• parallel library: Parallel programming library
• parallel-tree-search library: Parallel Tree Search
• parameterized library and test: Parameterized/indexed monoids and monads using only a single parameter type variable.
• partial library: A nullary type class for partial functions
• partial-isomorphisms library: Partial isomorphisms.
• partial-lens library: Haskell 98 Partial Lenses
• perm library and test: permutation Applicative and Monad with many mtl instances
• PermuteEffects library: Permutations of effectful computations
• phantom-state library and benchmark: Phantom State Transformer. Like State Monad, but without values.
• pid program: a simple PID controller
• pipe-enumerator library: A bidirectional bridge between pipes and iteratees
• piped library, program and test: Conduit with a smaller core
• pipeline library: Continuation patterns
• pipes library, test and benchmarks: Compositional pipelines
• pipes-async library and test: A higher-level interface to using concurrency with pipes
• pipes-attoparsec-streaming library and program: Streaming parsing in the pipes-core framework with Attoparsec.
• pipes-break library and test: Pipes to group by any delimiter (such as lines with carriage returns)
• pipes-bytestring library: ByteString support for pipes
• pipes-category library and test: Allows instances for Category, Arrow and ArrowChoice for Pipes.
• pipes-cellular library: Pipes-based combinators for cellular data processing
• pipes-cellular-csv library: Efficient pipes-based cellular CSV codec
• pipes-concurrency library and test: Concurrency for the pipes ecosystem
• pipes-conduit library: Conduit adapters
• pipes-core library: Compositional pipelines
• pipes-errors library: Integration between pipes and errors
• pipes-extra library, programs, test and benchmarks: Various basic utilities for Pipes.
• pipes-extras library and test: Extra utilities for pipes
• pipes-fluid library and test: Reactively combines Producers so that a value is yielded as soon as possible.
• pipes-group library and test: Group streams into substreams
• pipes-io library and test: Stateful IO streams based on pipes
• pipes-lines library and test: Pipes for grouping by lines with carriage returns.
• pipes-misc library and test: Miscellaneous utilities for pipes, required by glazier-tutorial
• pipes-parse library: Parsing infrastructure for the pipes ecosystem
• pipes-random library: Producers for handling randomness.
• pipes-rt library and program: A few pipes to control the timing of yields
• pipes-safe library: Safety for the pipes ecosystem
• pipes-transduce library and tests: Interfacing pipes with foldl folds.
• pipes-vector library: Various proxies for streaming data into vectors
• pipes-zeromq4 library and programs: Pipes integration for ZeroMQ messaging
• placeholder library and test: placeholder definitions for TODO and unimplemented
• plan-applicative library and tests: Applicative/Arrow for resource estimation and progress tracking.
• poly-cont library: Poly-kinded continuations
• porcupine-core library and programs: Express portable, composable and reusable data tasks and pipelines
• porcupine-http library and programs: A location accessor for porcupine to connect to HTTP sources/sinks
• porcupine-s3 library and program: A location accessor for porcupine to connect to AWS S3 sources/sinks
• porpoise library and program: A minimalist HTTP server framework written on top of wai
• ports library: The Haskell Ports Library
• prelude-plus program: Prelude for rest of us
• ProbabilityMonads library: Probability distribution monads.
• product-profunctors library, test and benchmark: product-profunctors
• profunctor-extras library: This package has been absorbed into profunctors 4.0
• profunctor-monad library and test: Monadic bidirectional programming
• profunctors library: Profunctors
• program library: Programs with Environments and Managed Resources
• progress-reporting library: Functionality for reporting function progress.
• prologue library: Better, more general Prelude exporting common utilities.
• prompt library: Monad (and transformer) for deferred-effect pure prompt-response queries
• prospect library and test: Explore continuations with trepidation
• protocol library: Model distributed system as type-level multi-party protocol
• quantum-arrow library: An embedding of quantum computation as a Haskell arrow
• quiver library: Quiver finite stream processing library
• quiver-binary library and test: Binary serialisation support for Quivers
• quiver-bytestring library: Quiver combinators for bytestring streaming
• quiver-cell library: Quiver combinators for cellular data processing
• quiver-csv library: Quiver combinators for cellular CSV data processing
• quiver-enumerator library: Bridge between Quiver and Iteratee paradigms
• quiver-groups library and test: Group and chunk values within a Quiver
• quiver-http library: Adapter to stream over HTTP(s) with quiver
• quiver-instances library: Extra instances for Quiver
• quiver-interleave library and test: Interleave values from multiple Quivers
• quiver-sort library and test: Sort the values in a quiver
• random-eff library: A simple random generator library for extensible-effects
• random-effin library: A simple random generator library for effin
• rank2classes library and tests: standard type constructor class hierarchy, only with methods of rank 2 types
• rate-limit library: A basic library for rate-limiting IO actions.
• reactive-haskell library: minimal fork of io-reactive
• reactive-io library: IO-oriented FRP library
• reader-soup library: Vinyl-based reader-like monad composition
• reasonable-lens library: Lens implementation. It is more small but adequately.
• reasonable-operational library: Just size Operational Monad implementation.
• record library: Anonymous records
• recursion : A recursion schemes library for Haskell.
• recursion-schemes library and test: Representing common recursion patterns as higher-order functions
• recursion-schemes-ext library, test and benchmark: Amateur addenda to recursion-schemes
• ref-fd library: A type class for monads with references using functional dependencies.
• ref-mtl library: A type class for monads with references compatible with the mtl2 library.
• ref-tf library: A type class for monads with references using type families.
• reference library: A class for references in Haskell
• references library and test: Selectors for reading and updating data.
• regions library: Provides the region monad for safely opening and working with scarce resources.
• regions-monadsfd library: Monads-fd instances for the RegionT monad transformer
• regions-monadstf library: Monads-tf instances for the RegionT monad transformer
• regions-mtl library: mtl instances for the RegionT monad transformer
• registry library and test: data structure for assembling components
• registry-hedgehog library and test: utilities to work with Hedgehog generators and `registry`
• rematch library and test: A simple api for matchers
• rematch-text library and test: `rematch` matchers for Data.Text
• remote-monad library and tests: An parametrizable Remote Monad, and parametrizable Applicative Functor
• ReplicateEffects library: Composable replication schemes of applicative functors
• representable-profunctors library: This package has been absorbed into profunctor-extras.
• request-monad library: A transformer for generic requests
• resource-effect library and test: A port of the package 'resourcet' for extensible effects.
• resource-effectful library: A region-based resource effect for the effectful ecosystem.
• resource-pool-monad library: A monadic interface for resource-pool
• resource-registry library and test: Track allocated resources
• resource-simple library: Allocate resources which are guaranteed to be released.
• resourcet-effectful library: Adaptation of the resourcet library for the effectful ecosystem.
• restartable library: Minimal live coding library for model-view-event-update applications.
• resumable-exceptions library: A monad transformer for resumable exceptions
• retry library and test: Retry combinators for monadic actions that may fail
• retry-effectful library and test: Adaptation of the retry library for the effectful ecosystem.
• rev-state library and test: Reverse State monad transformer
• rex library: A quasi-quoter for typeful results of regex captures.
• RichConditional library: Tiny library to replace classic if/else
• rio library and test: A standard library for Haskell
• rio-app library and program: Generic App type for rio.
• rio-orphans library and test: Orphan instances for the RIO type in the rio package
• rmonad library and test: Restricted monad library
• RoyalMonad library: All hail the Royal Monad!
• rt library: A more fine-grained version of state threads (ST)
• safe-buffer-monad library and test: A monadic buffer resilient to exceptions
• safe-exceptions library and test: Safe, consistent, and easy exception handling
• safe-exceptions-checked library and test: Safe, checked exceptions
• safe-wild-cards library and test: Use RecordWildCards safely
• scc library, program and test: Streaming component combinators
• schedule library and tests: Pure deterministic scheduled computations
• schonfinkeling library: Transformation of n-ary functions to unary functions
• SciFlow library: Scientific workflow management system
• SciFlow-drmaa library: Scientific workflow management system
• scoped-codensity library and test: CPS resource allocation but as a Monad and completely safe
• selective library and test: Selective applicative functors
• semi-iso library: Weakened partial isomorphisms, reversible computations.
• semigroupoid-extras library: Semigroupoids that depend on PolyKinds
• semigroupoids library: Semigroupoids: Category sans id
• sessions library: Session Types for Haskell
• sessiontypes library, program and tests: Session types library
• sessiontypes-distributed library and tests: Session types distributed
• shade library: A control structure used to combine heterogenous types with delayed effects.
• shared-fields library and test: a tiny library for using shared lens fields
• shortcircuit library: Short-circuit values and expressions.
• simple-effects library, test and benchmark: A simple effect system that integrates with MTL
• simple-observer library: The Observer pattern
• simple-sessions library: A simple implementation of session types
• sink library: An alternative to lazy I/O that doesn't conflate execution with evaluation
• skulk library and test: Eclectic collection of utility functions
• sousit library and test: Source/Sink/Transform: An alternative to lazy IO and iteratees.
• spartacon program: A unix-style (read from stdin, write to stdout) global hotkey daemon
• spawn library: Tiny library for concurrent computations
• speculation-transformers library: Merged into 'speculation'. Use that instead.
• stack-hpc-coveralls library, program and test: Initial project template from stack
• stamina library, program and test: Retries for humans
• state-bag library and test: Monad transformers for holding bags of state.
• state-plus library and test: MonadPlus for StateT
• statestack library: Simple State-like monad transformer with saveable and restorable state
• stateWriter library, tests and benchmark: A faster variant of the RWS monad transformers.
• static library and tests: Type-safe and interoperable static values and closures
• static-closure library: Serialisable static pointers to functions
• stm-actor library and test: A simplistic actor model based on STM
• stm-incremental library and test: A library for constructing incremental computations
• stm-supply library and test: STM wrapper around Control.Concurrent.Supply.
• stopwatch library and test: A simple stopwatch utility
• stream-monad library and program: Simple, Fair and Terminating Backtracking Monad
• streaming-eversion library and tests: Translate pull-based stream folds into push-based iteratees.
• streamproc library: Stream Processer Arrow
• streams library: Various Haskell 2010 stream comonads
• streamt library and tests: Simple, Fair and Terminating Backtracking Monad Transformer
• strict-concurrency library: Strict concurrency abstractions
• strict-identity library: Strict Identity Monad, handy for writing fast code!
• strict-writer library and test: A stricter writer, which uses StateT in order to avoid space leaks.
• strictly library: Combinators for strictifying functions
• stt library and test: A monad transformer version of the ST monad
• sub-state library and test: Get the total, put a single element
• subhask library, tests and benchmark: Type safe interface for programming in subcategories of Hask
• successors library: An applicative functor to manage successors
• supervisor library: Control an internal monad execution for trace generation, backtrakcking, ...
• sweet-egison library, test and benchmarks: Shallow embedding implementation of non-linear pattern matching
• synchronous-channels library: Synchronous communication channels
• tagged-exception-core library: Reflect exceptions using phantom types.
• tagged-identity library: Trivial monad transformer that allows identical monad stacks to have different types
• tagshare library: TagShare - explicit sharing with tags
• Tainted library: Tainted type, and associated operations
• takahashi library: create slide for presentation.
• tardis library and test: Bidirectional state monad transformer
• tehepero library: Prettier error
• telega library: Telegram Bot API binding
• tell library: The MonadTell class and related monad transformers.
• THEff library: TH implementation of effects.
• threads-pool library: A library to operate with pool of haskell's IO threads
• time-machine library and test: A library to mock the current time.
• time-out library and test: Timers, timeouts, alarms, monadic wrappers
• time-warp library, programs and test: Distributed systems execution emulation
• timeout library and test: Generalized sleep and timeout functions
• timeout-control library: Updatable timeouts as a Monad transformer
• timers-tick library and test: tick based timers
• to library and benchmark: Simple, safe, boring type conversions
• tonalude library and tests: A standard library for Tonatona framework.
• total library: Exhaustive pattern matching using lenses, traversals, and prisms
• TotalMap library and test: A total map datatype
• trace library: A monad transformer for tracing provenience of errors
• transactional-events library: Transactional events, based on Concurrent ML semantics
• transformers library: Concrete functor and monad transformers
• transformers-abort library: Error and short-circuit monad transformers
• transformers-base library: Lift computations from the bottom of a transformer stack
• transformers-bifunctors library: Bifunctors over monad transformers.
• transformers-compose library: Arrow-like / category-like composition for transformers.
• transformers-continue library: Control flow data type and monad transformer.
• transformers-convert library and test: Sensible conversions between some of the monad transformers
• transformers-eff library and benchmark: An approach to managing composable effects, ala mtl/transformers/extensible-effects/Eff
• transformers-free library: Free monad transformers
• transformers-lift library: Ad-hoc type classes for lifting
• transformers-runnable library: A unified interface for the run operation of monad transformers
• transient library and test: composing programs with multithreading, events and distributed computing
• transient-universe library, programs and test: fully composable remote execution for the creation of distributed systems
• tree-monad library: Non-Determinism Monad for Tree Search
• TreeT library: Transformer for Data.Tree
• trivia library: The trivial monad and comonad
• tubes library: Write stream processing computations with side effects in a series of tubes.
• tuple-lenses library: Stock FieldN combos and generators
• tweak library: A library for incremental computing
• type-flip library and test
• type-operators library: Various type-level operators
• TypeCompose library: Type composition classes & instances
• typed-fsm library: A framework for strongly typed FSM
• typed-session library and test: typed session framework
• uberlast library: Generate overloaded lenses from plain data declaration
• unexceptionalio library and test: IO without any non-error, synchronous exceptions
• unexceptionalio-trans library: A wrapper around UnexceptionalIO using monad transformers
• unfree library and test: Simplistic free monad with deriving through UndecidableInstances
• unlift library: Typeclass for monads that can be unlifted to arbitrary base monads
• unliftio library, test and benchmark: The MonadUnliftIO typeclass for unlifting monads to IO (batteries included)
• unliftio-core library: The MonadUnliftIO typeclass for unlifting monads to IO
• unliftio-pool library: Data.Pool generalized to MonadUnliftIO.
• unordered-containers-rematch library and test: Rematch support for unordered containers
• unpack-funcs library: Monad transformers that mirror worker-wrapper transformations.
• unsafe library: Unified interface to unsafe functions
• unsequential library and test: An extension removing the sequentiality from monads
• util-logict library, test and benchmark: See README for more info
• uu-interleaved library: An interleaving combinator for use with applicative style implementations.
• validationt library and test: Straightforward validation monad
• var-monad library: The VarMonad typeclass, generalizing types of references.
• variables library and test: Monads with variables, without deep magic
• variadic library, test and benchmark: Abstractions for working with variadic functions
• varying library, program, tests and benchmark: FRP through value streams and monadic splines.
• vector-strategies library: A parallel evaluation strategy for boxed vectors
• views library: Views allow you to run a State monad on part of a state.
• vinyl-utils library: Utilities for vinyl
• wai-control library: Run wai Applications in IO based monads
• watchdog library: Simple control structure to re-try an action with exponential backoff
• weighted library: Writer monad which uses semiring constraint
• weighted-search library: A weighted nondeterministic search monad
• wires library and programs: Functional reactive programming library
• with library: Simple open product type
• withdependencies library and test: Run computations that depend on one or more elements in a stream.
• wl-pprint-extras library and test: A free monad based on the Wadler/Leijen pretty printer
• wl-pprint-terminfo library: A color pretty printer with terminfo support
• Workflow library: Workflow patterns over a monad for thread state logging & recovery
• writer-cps-exceptions library: Control.Monad.Catch instances for the stricter CPS WriterT and RWST
• writer-cps-full library: WriteT and RWST monad transformers (Reexport with all dependencies)
• writer-cps-lens library: Lens instances for the stricter CPS WriterT and RWST
• writer-cps-monads-tf library: MonadWriter orphan instances for writer-cps-transformers
• writer-cps-morph library: MFunctor instance for CPS style WriterT and RWST
• writer-cps-mtl library: MonadWriter orphan instances for writer-cps-transformers
• writer-cps-transformers library: WriteT and RWST monad transformers
• xml-html-conduit-lens library and tests: Optics for xml-conduit and html-conduit
• zio library and test: App-centric Monad-transformer based on Scala ZIO (UIO + ReaderT + ExceptT).
• zoom-refs library: Zoom (~ Functor) and pairing (~ Applicative) for mutable references.