Packages tagged data

1858 packages have this tag.

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Related tags: library (1831), bsd3 (1291), mit (290), deprecated (122), program (110), text (64), math (63), public-domain (53), data-structures (52), gpl (51), parsing (45), control (40), apache (39), concurrency (27), system (25), conduit (24), bsd2 (23), lenses (23), network (22), cryptography (17), json (17), lgpl (17), serialization (16), generics (15), web (15), configuration (14), numerical (14), algebra (12), database (12), xml (12), compilers-interpreters (11), mpl (11), type-system (11), parallelism (10), streaming (10), algorithms (9), codec (9), graphics (9), language (9), records (8), agpl (7), dependent-types (7), enumerator (7), io-streams (7), reflection (7), bit (6), game (6), monads (6), numeric (6), bit-vectors (5), failure (5), foreign (5), physics (5), sound (5), testing (5), conversion (4), csv (4), geography (4), list (4), logging (4), logic (4), parser (4), schema (4), time (4), aviation (3), containers (3), development (3), file (3), graphs (3), hash (3), maths (3), optimization (3), pipes (3), statistics (3), succinct-data-structures (3), toml (3), types (3), vector (3), comonads (2), composition (2), compression (2), concurrent (2), data-mining (2), data-science (2), digest (2), embedded (2), functions (2), geometry (2), ghc (2), irc (2), machine-learning (2), natural-language-processing (2), nix (2), optimisation (2), other (2), phantom-types (2), random (2), search (2), string (2), template-haskell (2), test (2), tools (2), tree (2), unicode (2), utility (2), ai (1), api (1), bits (1), bsd4 (1), bytes (1), bytestring (1), bytestrings (1), cache (1), ...

Name
DLs
Rating
Description
Tags
Last U/L
Maintainer
ABList490.0An alternating list of two types (bsd3, data, library)2014-06-23DylanJust
AC-Angle370.0Angles in degrees and radians. (bsd3, data, library, math, numerical)2010-07-23AndrewCoppin
AC-Boolean480.0Handle Boolean values generatically. (bsd3, data, library, logic, math)2010-11-09AndrewCoppin
AC-Colour1230.0Efficient RGB colour types. (bsd3, data, graphics, library, math, numerical)2014-01-12AndrewCoppin
AC-HalfInteger530.0Efficient half-integer type. (bsd3, data, library, math, numerical)2009-08-12AndrewCoppin
AC-Terminal330.0Trivial wrapper over ansi-terminal. (bsd3, data, library, math, numerical)2010-10-28AndrewCoppin
AC-VanillaArray510.0Immutable arrays with plain integer indicies. (bsd3, data, library)2010-01-17AndrewCoppin
AC-Vector2230.0Efficient geometric vectors and transformations. (bsd3, data, graphics, library, math, numerical)2011-08-12AndrewCoppin
AC-Vector-Fancy1150.0Fancy type-system stuff for AC-Vector (bsd3, data, graphics, library, math, numerical)2010-08-15AndrewCoppin
AERN-Basics (deprecated in favor of aern2-mp, aern2-real)410.0foundational type classes for approximating exact real numbers (bsd3, data, deprecated, library, math, program)2011-05-11MichalKonecny
AERN-Real (deprecated in favor of aern2-mp, aern2-real)2040.0arbitrary precision real interval arithmetic (bsd3, data, deprecated, library, math)2011-05-11MichalKonecny
AERN-Real-Double (deprecated in favor of aern2-mp, aern2-real)480.0arbitrary precision real interval arithmetic (bsd3, data, deprecated, library, math, program)2011-05-11MichalKonecny
AERN-Real-Interval (deprecated in favor of aern2-mp, aern2-real)250.0arbitrary precision real interval arithmetic (bsd3, data, deprecated, library, math)2011-05-11MichalKonecny
AERN-RnToRm (deprecated)1110.0polynomial function enclosures (PFEs) approximating exact real functions (bsd3, data, deprecated, library, math)2009-07-29MichalKonecny
AERN-RnToRm-Plot (deprecated)890.0GL plotting of polynomial function enclosures (PFEs) (bsd3, data, deprecated, library, math)2009-08-01MichalKonecny
ANum1070.0Num instance for Applicatives provided via the ANum newtype (bsd3, data, library)2018-02-13DanBurton
AesonBson390.0Mapping between Aeson's JSON and Bson objects. (data, library)2014-10-03AndrasSlemmer, NiklasHambuechen
ArrayRef490.0Unboxed references, dynamic arrays and more (bsd3, data, library)2009-06-26GwernBranwen
AttoBencode500.0Fast Bencode encoding and parsing library (bsd3, data, library)2014-06-24FlorianHartwig
Boolean3310.0Generalized booleans and numbers (bsd3, data, library)2017-02-19ConalElliott
CBOR310.0Encode/Decode values to/from CBOR (data, lgpl, library)2014-07-24KyleMurphy
CLASE480.0Cursor Library for A Structured Editor (bsd3, data, library)2009-02-11TristanAllwood
CLI180.0CLI tools (bsd3, data, library)2015-03-10g960059
COrdering460.0An algebraic data type similar to Prelude Ordering. (bsd3, data, library)2008-07-23AdrianHey
CTRex330.0Open records using closed type families. (bsd3, data, data-structures, library)2014-11-13AtzeVanDerPloeg
Cardinality230.0Measure container capacity. Use it to safely change container. (data, library)2010-01-20AndreySisoyev
Checked260.0Inbuilt checking for ultra reliable computing (bsd3, data, library)2012-11-05RobertOnslow
ClassyPrelude150.0Prelude replacement using classes instead of concrete types where reasonable (bsd3, control, data, library)2010-05-31SveinOveAas
ConsStream190.0Trivial re-export of Wouter Swierstra's Stream package, avoiding module name clash. (bsd3, data, library)2012-04-16ConalElliott
DCFL820.0Communication Free Learning-based constraint solver (data, library, mit)2015-07-08dpandya
DPutils910.0utilities for DP (bsd3, data, library)2018-12-11ChristianHoener
Data-Angle260.0Geometric angles (bsd3, data, library, math)2017-03-26deadmanswitch
Data-Hash-Consistent320.0Provide a simple consistent hashing mechanism (bsd3, data, library)2012-11-20BradClawsie
Data-Rope (deprecated in favor of data-rope)390.0Ropes, an alternative to (Byte)Strings. (data, deprecated, library)2010-05-29PierreEtienneMeunier
DataIndex280.0A package for adding index column to data files (data, library, mit, program)2016-10-09steven_yhw
Digit (deprecated in favor of digit)350.0A data-type representing digits 0-9 (bsd3, data, deprecated, library)2011-09-06TonyMorris
DimensionalHash810.0An n-dimensional hash using Morton numbers. (algorithms, bsd3, data, library)2011-05-10GhassenHamrouni
Dish1110.0Hash modules (currently Murmur3) (bsd3, data, library, program)2017-11-29zcourts
DistanceUnits300.0A comprehensive distance library (bsd3, data, library)2013-08-26MattGambogi
DynamicTimeWarp160.0Dynamic time warping of sequences. (data, lgpl, library, program)2015-02-05zombiecalypse
EnumContainers260.0Simple Enum-class-based int containers (bsd3, data, library)2010-11-22EyalLotem
EstProgress340.0Methods for estimating the progress of functions (bsd3, data, library)2015-08-10JamesCandy
EuroIT200.0Library for using euro currency, italian language (bsd3, data, library)2010-07-05PaoloVeronelli
Fin2070.0Finite totally-ordered sets (bsd3, data, library)2018-12-27MatthewFarkasDyck
FiniteMap (deprecated in favor of containers)140.0A finite map implementation, derived from the paper: Efficient sets: a balancing act, S. Adams, Journal of functional programming 3(4) Oct 1993, pp553-562 (bsd4, data, deprecated, library)2007-03-06PepeIborra
FixedPoint-simple880.0Fixed point, large word, and large int numerical representations (types and common class instances) (bsd3, data, library)2014-06-24ThomasDuBuisson
Focus270.0Tools for focusing in on locations within numbers (data, library, mit)2011-12-24NateSoares
Foster410.0Utilities to generate and solve puzzles (data, mit, program)2015-01-19Jefffrey
Frames3780.0Data frames For working with tabular data files (bsd3, data, library)2019-01-04AnthonyCowley
Frames-beam340.0A library for accessing Postgres tables as in-memory data structures. (bsd3, data, data-science, database, library)2018-09-02GagandeepBhatia
Frames-dsv420.0Alternative CSV parser for the Frames package (bsd3, data, library)2018-10-06AnthonyCowley
HFrequencyQueue250.0A Queue with a random (weighted) pick function (data, gpl, library)2015-08-28Bellaz
HList2842.0Heterogeneous lists (data, library, mit)2018-02-20AdamVogt, GwernBranwen
HMap4630.0Fast heterogeneous maps and unconstrained typeable-like functionality. (bsd3, data, data-structures, library)2018-04-17AtzeVanDerPloeg
HSet570.0Faux heterogeneous sets (bsd3, data, library)2017-05-11athanclark
HaLeX1460.0HaLeX enables modelling, manipulation and visualization of regular languages (data, library, program, public-domain)2017-02-10GwernBranwen, joaoSaraiva
HappyTree310.0Type Safe and End to End Decision Tree (bsd3, data, library)2018-01-08MarisaVeryMoe
HasCacBDD590.0Haskell bindings for CacBDD (data, gpl, library)2019-01-24m4lvin
Hayoo210.0The Hayoo! search engine for Haskell API search on hackage (data, mit, program, text)2012-03-01UweSchmidt
HiggsSet (deprecated)210.0A multi-index set with advanced query capabilites (bsd3, data, deprecated, library)2012-02-04LarsPetersen
Holumbus-Searchengine350.0A search and indexing engine. (data, library, mit, text)2012-03-01UweSchmidt
HsJudy320.0Judy bindings, and some nice APIs (bsd3, data, library)2008-03-07GwernBranwen
HulkImport370.0Easily bulk import CSV data to SQL Server (bsd3, data, library, program)2015-11-09smobs
IDynamic150.0Indexable, serializable form of Data.Dynamic (bsd3, data, library)2009-10-16AlbertoCorona
IORefCAS (deprecated in favor of atomic-primops)1130.0Atomic compare and swap for IORefs and STRefs. (bsd3, data, deprecated, library)2013-05-07RyanNewton
IndexedList210.0Length- and element-indexed lists sitting somewhere between homogeneous and fully heterogeneous. (bsd3, data, library)2014-06-28kwf
Interpolation960.0Multiline strings, interpolation and templating. (data, library, text)2012-10-05VilleTirronen
Interpolation-maxs150.0Multiline strings, interpolation and templating. (data, library, text)2014-03-14MaxwellSwadling
IntervalMap2440.0Containers for intervals, with efficient search. (bsd3, data, library)2018-11-16ChristophBreitkopf
IsNull210.0A typeclass to determine if a given value is null. (bsd3, data, library)2014-06-19jcristovao
Jdh380.0A Json implementation for Haskell, with JavaScript Values and Encoding/Decoding (data, library, mit)2017-02-25brunoczim
JuPyTer-notebook280.0JuPyTer notebook parser (bsd3, data, library, program)2017-11-21MichalGajda
LTree210.0Tree with only leaves carrying the data. (data, library, public-domain)2011-09-21RahulGopinath
Limit150.0Wrapper for data that can be unbounded (data, library, mit)2011-12-24NateSoares
ListZipper670.0Simple zipper for lists (bsd3, data, library)2011-10-31RyanIngram
MSQueue160.0Michael-Scott queue. (bsd3, data, library)2015-01-31julek
Map270.0Class of key-value maps (bsd3, data, library)2018-05-16MatthewFarkasDyck
Mapping710.0Mapping (agpl, data, library)2018-02-27Zaoqi
Measure180.0A library for units of measurement (bsd3, data, library)2009-11-11TonyMorris
Mecha150.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
Mechs170.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
MemoTrie3422.0Trie-based memo functions (bsd3, data, library)2018-01-30ConalElliott
MyPrimes150.0Generate all primes (data, library, mit, program)2015-08-05afonsomatos
NMap260.0A transparent nested Map structure (data, library)2016-12-02ACastello
NestedFunctor200.0Nested composition of functors with a type index tracking nesting. (bsd3, data, library)2014-06-28kwf
NewBinary330.0A binary I/O library (data, library)2009-10-16JeremyShaw
NineP520.09P2000 in pure Haskell (bsd3, data, library)2013-09-22DaveLeimbach, SergeyAlirzaev
NonEmpty170.0Library providing a non-empty list datatype, and total functions operating on it (bsd3, data, library)2009-03-19RobinGreen
NonEmptyList (deprecated in favor of semigroups)730.0A list with a length of at least one. (bsd3, data, deprecated, library)2010-08-28TonyMorris
NumInstances2000.0Instances of numeric classes for functions and tuples (bsd3, data, library)2014-09-26ConalElliott
NumLazyByteString (deprecated)190.0Num, Enum, Eq, Integral, Ord, Real, and Show instances for Lazy ByteStrings (bsd3, data, deprecated, library)2010-04-06ThomasDuBuisson
Object160.0Object oriented programming for haskell using multiparameter typeclasses. (apache, control, data, library)2014-05-15yokto
ObjectName2350.0Explicitly handled object names (bsd3, data, library)2015-12-22SvenPanne
Octree1270.0Simple unbalanced Octree for storing data about 3D points (bsd3, data, library)2018-07-15MichalGajda
OddWord1052.25Provides a wrapper for deriving word types with fewer bits. (bsd3, data, library)2018-04-11RobinKay
Omega840.0Integer sets and relations using Presburger arithmetic (bsd3, data, library)2014-05-03ChristopherRodrigues
OneTuple1860.0Singleton Tuple (bsd3, data, library)2018-05-12JohnDorsey, phadej
Only2280.0The 1-tuple type or single-value "collection" (bsd3, data, library)2017-06-12HerbertValerioRiedel
OpenAFP1970.0IBM AFP document format parser and generator (data, library, public-domain)2017-04-04AudreyTang
OpenAFP-Utils1060.0Assorted utilities to work with AFP data streams (data, program, public-domain)2013-11-30AudreyTang
OptDir370.0The OptDir type for representing optimization directions. (bsd3, data, library, optimisation, optimization)2013-05-29MasahiroSakai
OrderedBits1120.0Efficient ordered (by popcount) enumeration of bits (bsd3, data, library)2017-02-27ChristianHoener
PUH-Project230.0This is a package which includes Assignments, Email, User and Reviews modules for Programming in Haskell course. (bsd3, data, library)2016-01-21att
PathTree230.0A tree used to merge and maintain paths (bsd3, data, library)2016-07-16pjrt
Peano400.0simple Peano numbers (bsd3, data, library)2012-03-08AndrasSlemmer, FrancescoMazzoli
PeanoWitnesses140.0GADT type witnesses for Peano-style natural numbers. (bsd3, data, library)2014-06-28kwf
PerfectHash500.0A perfect hashing library for mapping bytestrings to values. (bsd3, data, data-structures, library)2016-04-29MarkWotton
Persistence880.0Quickly detect clusters and holes in data. (bsd3, data, library)2018-09-15Ebanflo
Piso450.0Partial isomorphisms (bsd3, data, library)2017-05-09MartijnVanSteenbergen
PrimitiveArray4620.0Efficient multidimensional arrays (bsd3, data, library)2018-12-11ChristianHoener
PrimitiveArray-Pretty490.0Pretty-printing for primitive arrays (bsd3, data, library)2017-03-03ChristianHoener
QLearn172.0A library for fast, easy-to-use Q-learning. (data, library, mit)2016-05-01dpandya
QuadEdge160.0QuadEdge structure for representing triangulations (bsd3, data, library)2010-06-26NealAlexander
QuadTree290.0QuadTree library for Haskell, with lens support. (bsd3, data, game, library)2015-08-09Kron
RFC1751 (deprecated in favor of rfc1751)490.0RFC-1751 library for Haskell (data, deprecated, library, public-domain)2018-08-13xenog
RLP770.0RLP serialization as defined in Ethereum Yellow Paper (data, lgpl, library, parsing)2018-12-10jasagredo
Range160.0Data structure for managing ranges (bsd3, data, library)2013-04-19ThomasEding
Ranged-sets1202.25Ranged sets for Haskell (bsd3, data, library)2010-12-09PaulJohnson
Ref230.0Generic Mutable Ref Abstraction Layer (bsd3, data, library)2013-03-28CarterSchonwald
RefSerialize3510.0Write to and read from ByteStrings maintaining internal memory references (bsd3, data, database, library, parsing)2017-02-06AlbertoCorona
SG270.0Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)2009-03-17NeilBrown
SGplus170.0(updated) Small geometry library for dealing with vectors and collision detection (bsd3, data, library, math)2016-09-01donomii
SciBaseTypes290.0Base types and classes for statistics, sciences and humanities (bsd3, data, library)2018-12-11ChristianHoener
SegmentTree380.0Data structure for querying the set (or count) of intervals covering given point (bsd3, data, library)2012-10-29AlexandruScvortov, DmitryAstapov
Semigroup650.0A semigroup (bsd3, data, library)2011-04-13TonyMorris
ShortestPathProblems310.0grammars for TSP and SHP (bsd3, data, library)2017-03-06ChristianHoener
SizeCompare180.0Fast size comparison for standard containers. (data, library)2010-03-02BramSchuur
SpinCounter150.0Lock free Spin Counter (bsd3, data, library)2015-01-24julek
StateVar3970.0State variables (bsd3, data, library)2018-08-14EdwardKmett, SvenPanne
StateVar-transformer160.0State variables (bsd3, data, library)2014-03-06seagull
Strafunski-ATermLib380.0An abstract data type designed for the exchange of tree-like data structures (bsd3, data, library)2013-05-03JamesKoppel
Stream2810.0A library for manipulating infinite lists. (bsd3, data, library)2015-02-06WouterSwierstra
SuffixStructures140.0Suffix array construction (bsd3, data, data-structures, library, program)2015-05-07ChristianHoener
TCache6380.0A Transactional cache with user-defined persistence (bsd3, data, database, library)2017-02-11AlbertoCorona
Tainted360.0Tainted type, and associated operations (bsd3, control, data, library, monads, trans)2015-05-27RossMeikleham
Tape170.0Bidirectionally infinite streams, akin to the tape of a Turing machine. (bsd3, data, library)2014-06-28kwf
Tensor730.0Tensor data types (bsd3, data, library)2018-07-25SvenPanne
Transhare170.0A library to apply transformation to containers so as to maximize sharing of unchanged subcomponents. (bsd3, data, library)2011-06-19ChrisKuklewicz
TreeCounter210.0Wait-free Tree Counter (bsd3, data, library)2015-01-24julek
Treiber350.0Lock free Treiber stack (bsd3, data, library)2015-01-31julek
TypeNat1070.0Some Nat-indexed types for GHC (data, library, mit)2017-11-09alexvieth
Unique3992.0It provides the functionality like unix "uniq" utility (bsd3, data, library)2019-01-31kapral
Validation (deprecated in favor of validation)290.0A data-type like Either but with an accumulating Applicative (bsd3, data, deprecated, library)2012-08-14TonyMorris
Vec2480.0Fixed-length lists and low-dimensional linear algebra. (bsd3, data, library, math)2014-08-06ScottDillard
Vec-Boolean730.0Provides Boolean instances for the Vec package (bsd3, data, library, math)2012-08-05TobiasBexelius
VecN210.0a simple peano-indexed vector type (bsd3, data, library)2012-03-03AndrasSlemmer
WAVE460.0WAVE audio file IO library (bsd3, data, library, program, sound)2018-11-24BartonMassey
WMSigner180.0WebMoney authentication module (cryptography, data, library, mit)2014-11-26triplepointfive
XML210.0Extensible Markup Language (bsd3, data, library)2018-08-19MatthewFarkasDyck
ZipFold300.0Zipping folds (bsd3, data, library)2009-07-12ConalElliott
abcBridge480.0Bindings for ABC, A System for Sequential Synthesis and Verification (bsd3, data, library)2015-12-12AaronTomb, RobertDockins
abeson440.0interconversion between aeson and bson. (data, library, mit)2014-09-19HirotomoMoriwaki
abstract-deque2920.0Abstract, parameterized interface to mutable Deques. (bsd3, data, library)2014-02-05RyanNewton
abstract-deque-tests330.0A test-suite for any queue or double-ended queue satisfying an interface (bsd3, data, library)2014-02-05RyanNewton
ac-machine380.0Aho-Corasick string matching algorithm in Haskell (bsd3, data, library)2013-09-30YutaTaniguchi
ac-machine-conduit180.0Drive Aho-Corasick machines in Conduit pipelines (bsd3, data, library)2013-09-30YutaTaniguchi
accelerate5012.5An embedded language for accelerated array processing (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-10-07ManuelChakravarty, TrevorMcDonell
accelerate-bignum480.0Fixed-length large integer arithmetic for Accelerate (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-04TrevorMcDonell
accelerate-cuda (deprecated in favor of accelerate-llvm-ptx)2710.0Accelerate backend for NVIDIA GPUs (bsd3, compilers-interpreters, concurrency, data, deprecated, library, parallelism)2017-03-31ManuelChakravarty, TrevorMcDonell
accelerate-examples1970.0Examples using the Accelerate library (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-04ManuelChakravarty, TrevorMcDonell
accelerate-fft1440.0FFT using the Accelerate library (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-04TrevorMcDonell
accelerate-io2150.0Read and write Accelerate arrays in various formats (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-04ManuelChakravarty, TrevorMcDonell
accelerate-llvm830.0Accelerate backend component generating LLVM IR (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-03TrevorMcDonell
accelerate-llvm-native950.0Accelerate backend for multicore CPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-03TrevorMcDonell
accelerate-llvm-ptx1062.0Accelerate backend for NVIDIA GPUs (bsd3, compilers-interpreters, concurrency, data, library, parallelism)2018-04-03TrevorMcDonell
accelerate-random (deprecated in favor of mwc-random-accelerate)190.0Generate Accelerate arrays filled with high quality pseudorandom numbers (bsd3, data, deprecated, library)2015-10-16TrevorMcDonell
access-token-provider420.0Provides Access Token for Services (bsd3, data, library)2018-05-01mtesseract
active6550.0Abstractions for animation (bsd3, data, library)2017-05-16BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
adaptive-containers380.0Self optimizing container types (bsd3, data, library)2009-04-11DonaldStewart
adaptive-tuple350.0Self-optimizing tuple types (bsd3, data, library)2010-03-16JohnLato
aeson-applicative170.0make To/From JSOn instances from an applicative description (data, library, mit)2015-06-24GregWeber
aeson-bson240.0Mapping between Aeson's JSON and Bson objects. (data, library)2013-05-24AlfredoDiNapoli
aeson-casing1480.0Tools to change the formatting of field names in Aeson instances. (data, library, mit)2015-12-25andrewrademacher
aeson-injector1230.0Injecting fields into aeson values (data, json, library, mit, web)2018-08-31NCrashed
aeson-iproute880.0Aeson instances for iproute types (bsd3, data, library)2018-03-19sickmind, MaxGabriel
aeson-lens1970.0Lens of Aeson (bsd3, data, library)2013-02-14HideyukiTanaka
aeson-options80.0Options to derive FromJSON/ToJSON instances (data, json, library, mit)2018-10-01vrom911
aeson-schema2980.0Haskell JSON schema validator and parser generator (data, library, mit)2018-10-29MateuszKowalczyk, TimBaumann, ChristianMarie
aeson-t470.0Transform JSON (data, library, mit)2015-04-28begriffs
aeson-utils1490.0Utilities for working with Aeson. (bsd3, data, library)2015-05-25AdamBergmark, ErikHesselink
aeson-value-parser4410.0API for parsing "aeson" JSON tree into Haskell types (data, json, library, mit, parsing)2019-01-31NikitaVolkov
aeson-yak1400.0Handle JSON that may or may not be a list, or exist (data, library, mit)2017-12-20tejon
affinely-extended290.0 (data, library, mit)2017-04-05clinton
afis340.0Anti-forensic Information Splitter (bsd3, cryptography, data, library)2013-10-28VincentHanquez
aig1240.0And-inverter graphs in Haskell. (bsd3, data, library)2018-06-12AaronTomb, RobertDockins
aip630.0Aeronautical Information Package (AIP) (aviation, bsd3, data, library, program)2018-10-14qfpl
algebraic-classes1680.0Conversions between algebraic classes and F-algebras. (bsd3, data, generics, library, math)2018-09-23SjoerdVisscher
algo-s200.0An implementation of Knuth's algorithm S. (apache, data, library, program)2016-08-16EricRochester
align500.0Sequence alignment algorithms. (bsd3, data, library)2015-07-16literon
alist1720.0lists with O(1) append (bsd3, data, library)2019-02-17AlanHawkins
alphachar640.0A character between a-z (bsd3, data, library)2018-08-09TonyMorris, qfpl
alpino-tools (deprecated)510.0Alpino data manipulation tools (data, deprecated, library, natural-language-processing, program)2012-04-07DanielDeKok
altcomposition370.0Alternative combinators for unorthodox function composition (bsd3, data, library)2016-07-26jcristovao
alternative-io (deprecated in favor of io-choice)260.0IO as Alternative instance (deprecated) (bsd3, data, deprecated, library)2012-04-23KazuYamamoto
anonymous-sums460.0Anonymous sum types (bsd3, data, library)2016-12-23OmariNorman
anonymous-sums-tests290.0QuickCheck functions to accompany the anonymous-sums package (bsd3, data, library)2014-07-30OmariNorman
apache-md5642.0Apache specific MD5 digest algorighm. (bsd3, cryptography, data, library)2015-06-21PeterTrsko
apart670.0Get all your structure and rip it apart. (bsd3, control, data, library, program)2018-09-28iokasimovmt
apecs9810.0Fast ECS framework for game programming (bsd3, control, data, game, library, program)2018-12-15jonascarpay
apecs-stm630.0STM stores for apecs (bsd3, control, data, game, library)2019-02-03jonascarpay
app-lens340.0applicative (functional) bidirectional programming beyond composition chains (bsd3, data, lenses, library)2016-09-25kztk
appc520.0app container types and tools (data, library, mit, program)2015-04-10wereHamster
applicative-numbers1190.0Applicative-based numeric instances (bsd3, data, library, numerical)2014-04-09ConalElliott
approximate-equality440.0Newtype wrappers for approximate equality (bsd3, data, library)2014-08-16GregoryCrosswhite
arff310.0Generate Attribute-Relation File Format (ARFF) files (bsd3, data, library, text)2008-11-18StefanKersten
arith-encode350.0A practical arithmetic encoding (aka Godel numbering) library. (bsd3, data, library, serialization, test, testing)2014-10-14emc2
armor200.0Prevent serialization backwards compatibility problems using golden tests (bsd3, data, library, testing)2018-03-14DougBeardsley
array-primops620.0Extra foreign primops for primitive arrays (bsd3, data, library)2017-08-10AndrasKovacs
array-utils (deprecated)330.0Primitive functions for updating many elements in mutable arrays at once (bsd3, data, data-structures, deprecated, library)2011-01-29AlexMason
arraylist160.0Memory-efficient ArrayList implementation (bsd3, data, library)2018-10-25chessai
ascii (deprecated)2270.0Type-safe, bytestring-based ASCII values (bsd3, data, deprecated, library)2018-10-23MichaelSnoyman, chris_martin, Monoid_Mary
ascii-table790.0ASCII table (bsd3, data, library)2018-01-30mitchellwrosen
ascii-vector-avc210.0Process Ascii Vectors for Advantest 93k (data, gpl, library, program)2014-10-15m
ascii85-conduit220.0Conduit for encoding ByteString into Ascii85 (bsd3, conduit, data, library)2014-01-26KazuoKoga
asn300.0asn type and encoding/decoding (bsd3, data, library)2018-06-13chessai
asn1-data (deprecated in favor of asn1-encoding)2510.0ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, deprecated, library)2015-09-07VincentHanquez
asn1-encoding4551.75ASN1 data reader and writer in RAW, BER and DER forms (bsd3, data, library)2017-03-02VincentHanquez
asn1-parse4070.0Simple monadic parser for ASN1 stream types. (bsd3, data, library)2015-09-21VincentHanquez
asn1-types4150.0ASN.1 types (bsd3, data, library)2015-12-19VincentHanquez
assoc340.0swap and assoc: Symmetric and Semigroupy Bifunctors (bsd3, data, library)2019-02-04phadej
assoc-list262.0Association lists (lists of tuples) (data, library, mit)2018-09-24chris_martin, Monoid_Mary
assoc-listlike360.0Association lists (list-like collections of tuples) (data, library, mit)2018-09-24chris_martin, Monoid_Mary
astar1000.0General A* search algorithm. (bsd3, data, library)2016-03-29CaleGibbard, JohannesWeiss
aterm290.0serialisation for Haskell values with sharing support (data, gpl, library, parsing)2011-08-04ChristianMaeder
atlassian-connect-descriptor3360.0Code that helps you create a valid Atlassian Connect Descriptor. (apache, data, library)2018-05-04RobertMassaioli, eero, AshleyValent
atomic-primops2652.0A safe approach to CAS and other atomic ops in Haskell. (bsd3, data, library)2018-03-09BrandonSimmons, GregoryCollins, RyanNewton, ryanglscott, peter_fogg, chchen
atomic-primops-foreign330.0An atomic counter implemented using the FFI. (bsd3, data, library)2014-08-18RyanNewton
attempt (deprecated in favor of exceptions)3080.0Concrete data type for handling extensible exceptions as failures. (deprecated) (bsd3, data, deprecated, failure, library)2014-03-26MichaelSnoyman
atto-lisp1650.0Efficient parsing and serialisation of S-Expressions. (bsd3, data, library, text)2018-09-24ThomasSchilling
attoparsec-arff190.0An ARFF file parser using Attoparsec (ai, data, gpl, library, text)2012-02-09PaulWilson
attoparsec-binary960.0Binary processing extensions to Attoparsec. (bsd3, data, library)2012-09-22AndrewDrake
attoparsec-conduit (deprecated in favor of conduit-extra)4870.0Consume attoparsec parsers via conduit. (deprecated) (bsd3, conduit, data, deprecated, library, mit, parsing)2014-04-02MichaelSnoyman
attoparsec-iteratee720.0An adapter to convert attoparsec Parsers into blazing-fast Iteratees (bsd3, data, library)2011-11-28GregoryCollins, JohnLato
attoparsec-varword270.0Variable-length integer decoding for Attoparsec (data, lgpl, library)2018-05-03ch3pjw
attosplit220.0Split a lazy bytestring at boundaries defined by an attoparsec parser (bsd3, data, library)2011-12-19YitzGale
audiovisual200.0A battery-included audiovisual framework (bsd3, data, library, records)2015-03-21FumiakiKinoshita
automata110.0automata (bsd3, data, library, math)2019-01-22chessai
avl-static180.0A compile-time balanced AVL tree. (bsd3, data, library)2014-01-12FedericoLebron
avro5952.0Avro serialization support for Haskell (bsd3, data, library)2019-02-06newhoggy, alexeyraga, haskellworks
b-tree1010.0Immutable disk-based B* trees (bsd3, data, library)2018-11-04BenGamari
bank-holidays-england1760.0Calculation of bank holidays in England and Wales (bsd3, data, library)2018-10-02dcturner
base16-bytestring3822.0Fast base16 (hex) encoding and decoding for ByteStrings (bsd3, data, library)2014-01-17BryanOSullivan, HerbertValerioRiedel, MikhailGlushenkov
base32-bytestring650.0Fast base32 and base32hex codec for ByteStrings (bsd3, codec, data, library)2013-12-01SamTruzjan
base32string620.0Fast and safe representation of a Base-32 string (data, library, mit)2015-05-27solatis
base58-bytestring650.0Implementation of BASE58 transcoding for ByteStrings (bytestrings, data, library, public-domain)2015-01-30AlekseyUymanov
base58string780.0Fast and safe representation of a Base-58 string (data, library, mit)2015-05-10solatis
base64-bytestring5820.0Fast base64 encoding and decoding for ByteStrings (bsd3, data, library)2018-12-05BryanOSullivan, HerbertValerioRiedel, MikhailGlushenkov
base64-conduit (deprecated in favor of conduit-combinators)490.0Base64-encode and decode streams of bytes. (deprecated) (bsd3, conduit, data, deprecated, library)2014-03-21MichaelSnoyman
baserock-schema710.0Baserock Definitions Schema (bsd3, data, library, program)2018-07-03locallycompact
batch280.0Simplify queuing up data and processing it in batch. (bsd3, data, library)2018-01-27AlexanderThiemann
bcrypt1480.0Haskell bindings to the bcrypt password hash (bsd3, cryptography, data, library)2017-12-31AndrewMiller
bdelta (deprecated in favor of bytestring-delta)390.0Simple, fast binary diff/patch (data, deprecated, library, mit)2012-02-22JoeyAdams
beamable530.0Generic serializer/deserializer with compact representation (bsd3, data, library, serialization)2014-06-03JohnLato, MichaelBaikov
bencoding2980.0A library for encoding and decoding of BEncode data. (bsd3, data, library, mit, program)2019-01-06SamTruzjan, SergeyVinokurov
bert1440.0BERT implementation (bsd3, data, library)2016-04-05MariusEriksen, RomanCheplyaka, manzyuk
between750.0Function combinator "between" and derived combinators (bsd3, data, library)2016-01-09PeterTrsko
bff600.0Bidirectionalization for Free! (POPL'09) (data, library, public-domain)2011-03-22DanielSeidel, JanisVoigtlaender, JoachimBreitner
bff-mono440.0"Bidirectionalization for Free" for Monomorphic Transformations (bsd3, data, lenses, library)2014-08-14kztk
bidispec250.0Specification of generators and parsers (data, library)2010-10-05DavidLeuschner, StefanWehr
bidispec-extras190.0Extra helper functions for bidirectional specifications (data, library)2010-10-05StefanWehr
bifunctors8192.5Bifunctors (bsd3, data, functors, library)2018-07-04EdwardKmett, EricMertens, ryanglscott
bimap2410.0Bidirectional mapping between two key types (bsd3, data, library)2017-04-28StuartCook, joel_williamson
bimap-server550.0Two-column database server. (bsd3, data, library)2015-07-06DanielDiaz
bimaps1440.0bijections with multiple implementations. (bsd3, data, library)2017-03-03ChristianHoener
binary9360.0Binary serialisation for Haskell values using lazy ByteStrings (bsd3, data, library, parsing)2018-08-02DonaldStewart, IanLynagh, LennartKolmodin
binary-bits1390.0Bit parsing/writing on top of binary. (bsd3, data, library, parsing)2015-01-09LennartKolmodin
binary-communicator450.0Flexible way to ease transmission of binary data. (bsd3, data, library)2015-09-14SoenkeHahn, YvesPares
binary-derive260.0Automatic deriving of Binary using GHC.Generics (data, gpl, library)2011-11-05JaredHance
binary-enum260.0Simple wrappers around enum types (bsd3, data, library)2016-01-16tolysz
binary-ext1570.0An alternate with strong-typed errors for `Data.Binary.Get` monad from `binary` package. (data, library, parsing)2018-06-01warlock
binary-generic330.0Generic binary serialisation using binary and syb. (bsd3, data, library, parsing)2012-08-07LarsPetersen
binary-ieee754560.0Backport ieee754 float double combinators to older binary (bsd3, data, library)2016-10-24winterland
binary-indexed-tree200.0Binary Indexed Trees (a.k.a. Fenwick Trees). (data, library)2012-10-10MaxwellSayles
binary-list5000.0Lists of length a power of two. (bsd3, data, library)2016-07-07DanielDiaz
binary-parsers1260.0Extends binary with parsec/attoparsec style parsing combinators. (bsd3, data, library)2016-09-28winterland
binary-protocol200.0Monad to ease implementing a binary network protocol. (bsd3, data, library)2009-09-04GregoryCrosswhite
binary-protocol-zmq290.0Monad to ease implementing a binary network protocol over ZeroMQ (bsd3, data, library, network)2010-08-02NicolasTrangez
binary-shared900.0Sharing for the binary package (data, library)2013-05-04HamishMackenzie, JuergenNicklischFranken
binary-state390.0Simple wrapper around Data.Binary, which adds StateT to Get/Put monads. (bsd3, data, library)2011-09-30IlyaPortnov
binary-store (deprecated)200.0Format to store data using the binary transform. (bsd3, data, deprecated, library)2015-01-14DanielDiaz
binary-streams270.0data serialization/deserialization io-streams library (bsd3, data, io-streams, library)2015-05-07GregoryCollins, petterb
binary-strict1980.0Binary deserialisation using strict ByteStrings (bsd3, data, library, parsing)2015-12-13AdamLangley, DominicSteinitz
binary-tagged2340.0Tagged binary serialisation. (bsd3, data, library)2018-09-24phadej
binary-typed (deprecated)1670.0Type-safe binary serialization (bsd2, data, deprecated, library, serialization)2015-12-19quchen
binarydefer450.0Binary serialization with deferred loading (bsd3, data, library)2014-03-13NeilMitchell
bind-marshal190.0Data marshaling library that uses type level equations to optimize buffering. (bsd3, data, library)2011-10-30CoreyOConnor
bindynamic460.0A variation of Data.Dynamic.Dynamic with a Binary instance (data, gpl, library)2018-03-26lspitzner
bini592.0A collection of various methods for reading and writing bini files. (bsd3, configuration, data, library)2016-01-22TWeise
bit-protocol532.0Encode binary protocols with some odd bit numbers into a bytestring (bits, bsd3, bytes, data, library, parsing, protocols)2018-07-30k_bx
bit-vector270.0Simple bit vectors for Haskell (bit-vectors, bsd3, data, library)2015-03-24AdamFoltzer
bitarray2790.0Mutable and immutable bit arrays (bsd3, data, library)2014-08-12BalazsKomuves
bitmap420.0A library for handling and manipulating bitmaps (rectangular pixel arrays). (bsd3, data, graphics, library)2012-02-13BalazsKomuves
bitmap-opengl370.0OpenGL support for Data.Bitmap. (bsd3, data, graphics, library)2014-03-19BalazsKomuves
bitmaps410.0Bitmap library (bsd3, codec, data, graphics, library)2014-11-30ByronJohnson
bits2162.0Various bit twiddling and bitwise serialization primitives (bsd3, data, library, serialization)2017-04-27EdwardKmett, EricMertens, ryanglscott
bits-atomic540.0Atomic bit operations on memory locations for low-level synchronization (bsd3, concurrency, data, foreign, library)2010-09-05GabrielWicke
bits-bytestring260.0Bits instance for bytestrings. (bsd3, data, library)2016-03-25oldmanmike
bits-bytestring-lazy190.0Bits instance for lazy bytestrings. (bsd3, data, library)2016-09-07semaj
bits-conduit270.0Bitstream support for Conduit (bsd3, conduit, data, library)2012-06-29HideyukiTanaka
bits-extra1640.0Useful bitwise operations (bsd3, data, library, serialization)2018-06-13newhoggy, haskellworks, GeorgeWilson
bits-extras460.0Efficient high-level bit operations not found in Data.Bits (bsd3, data, library)2010-09-20GabrielWicke
bitstream790.0Fast, packed, strict and lazy bit streams with stream fusion (data, library, public-domain)2015-01-15MasatakeDaimon
bitstring210.0Lazy bit strings (bsd3, data, library)2010-08-01BalazsKomuves
bitvec1290.0Unboxed bit vectors (bit-vectors, data, library, public-domain)2019-02-12JamesCook, Bodigrim
bitwise1660.0fast multi-dimensional unboxed bit packed Bool arrays (bit-vectors, bsd3, data, data-structures, library)2018-04-26ClaudeHeilandAllen
blaze-builder8280.0Efficient buffered output. (bsd3, data, library)2018-03-14JasperVanDerJeugt, LeonSmith, SimonMeier
blaze-builder-conduit (deprecated in favor of conduit-extra)1990.0Convert streams of builders to streams of bytestrings. (deprecated) (bsd3, conduit, data, deprecated, library)2014-04-02MichaelSnoyman
blaze-builder-enumerator1270.0Enumeratees for the incremental conversion of builders to bytestrings. (bsd3, data, enumerator, library)2015-04-01MichaelSnoyman, SimonHengel, SimonMeier, ThomasSutton
blazeT510.0A true monad (transformer) version of the blaze-markup and blaze-html libraries (data, library, mit, text, web)2017-01-15johannesgerer
bloomfilter2460.0Pure and impure Bloom Filter implementations. (bsd3, data, library)2015-05-19BryanOSullivan
bloomfilter-redis442.0Distributed bloom filters on Redis (using the Hedis client). (bsd3, data, library)2016-06-04hesiod
boltzmann-samplers590.0Uniform random generators (data, generic, library, mit, random)2018-04-01lyxia
bond-haskell1320.0Runtime support for BOND serialization (bsd3, data, library, parsing)2016-11-26blaze
bool-extras750.0A fold function for Bool (bsd3, data, library)2014-04-04TomLokhorst
boolean-list600.0convert numbers to binary coded lists (data, gpl, library)2017-10-26AlanHawkins
boolean-normal-forms690.0Boolean normal form: NNF, DNF & CNF (data, library, mit)2017-11-29phadej
boombox180.0Chronokinetic stream sources and incremental consumers (bsd3, data, library)2016-02-08FumiakiKinoshita
boring610.0Boring and Absurd types (bsd3, data, library)2018-04-08phadej
both600.0Like Maybe, but with a different Monoid instance. (data, library, mit)2016-05-26barrucadu
bounded-array300.0Arrays with a value for every index (bsd3, data, library)2018-10-15puffnfresh
boundingboxes1270.0A generic boundingbox for an arbitrary vector (bsd3, data, library)2015-03-14FumiakiKinoshita
browscap290.0A reader and interface for the Browser Capabilities Project data files. (bsd3, data, library, web)2017-04-30davean
bsb-http-chunked3740.0Chunked HTTP transfer encoding for bytestring builders (bsd3, data, library, network)2018-09-29sjakobi
bson5600.0BSON documents are JSON-like objects with a standard binary encoding. (apache, data, library)2018-12-18FedorGogolev, GregWeber, MaximMitroshin, TonyHannan, VictorDenisov
bson-generic700.0Generic functionality for BSON (bsd3, data, library)2016-01-09PetrPilar
bson-generics (deprecated in favor of bson-generic)210.0Generics functionality for BSON (bsd3, data, deprecated, library)2012-01-26PetrPilar
bson-mapping1630.0Mapping between BSON and algebraic data types. (data, library)2017-03-05FrancescoMazzoli, ak3n
bspack420.0A simple and fast bytestring packer (bsd3, data, library)2014-12-02nicolasdp
btree990.0B-Tree on Unmanaged Heap (bsd3, data, library)2018-11-09andrewthad, chessai
buffer500.0Simple mutable low-level buffer for IO (data, library, mit)2017-11-01NikitaVolkov
buffer-builder3450.0Library for efficiently building up buffers, one piece at a time (bsd3, data, library)2018-10-12chadaustin, afriesen
buffer-builder-aeson440.0Serialize Aeson values with Data.BufferBuilder (data, library, mit)2015-11-02chadaustin, afriesen
buildable450.0Typeclass for builders of linear data structures (data, library, mit)2015-03-10IvanMiljenovic
bv1580.0Bit-vector arithmetic library (bit-vectors, bsd3, data, library)2018-03-11IagoAbal
bv-embed260.0Define embeddings of small bit vectors into larger ones (bsd3, data, library)2019-01-27benselfridge
bv-little1122.0Efficient little-endian bit vector library (bit-vectors, bsd3, data, library)2019-02-01recursion_ninja
byteable2520.0Type class for sequence of bytes (bsd3, data, library)2013-06-28VincentHanquez
bytes4772.0Sharing code for serialization between binary and cereal (bsd3, data, library, serialization)2018-07-03EdwardKmett, EricMertens, ryanglscott
byteset600.0Set of bytes. (bsd3, data, library)2015-07-07DanielDiaz
bytestring7132.75Fast, compact, strict and lazy byte strings with a list interface (bsd3, data, library)2017-07-25DonaldStewart, DuncanCoutts, HerbertValerioRiedel, IanLynagh
bytestring-arbitrary742.0Arbitrary instances for ByteStrings (bsd3, data, library)2018-08-03tsuraan
bytestring-builder4630.0The new bytestring builder, packaged outside of GHC (bsd3, data, library)2018-09-25LeonSmith, ryanglscott
bytestring-builder-varword280.0Variable-length integer encoding (data, lgpl, library)2018-05-03ch3pjw
bytestring-class (deprecated)450.0Classes for automatic conversion to and from strict and lazy bytestrings. (deprecated) (bsd3, data, deprecated, library)2014-03-21MichaelSnoyman
bytestring-conversion2011.25Type-classes to convert values to and from ByteString. (data, library, mpl)2015-07-07ToralfWittner
bytestring-csv380.0Parse CSV formatted data efficiently (bsd3, data, library)2008-07-21DonaldStewart
bytestring-delta270.0Simple, fast binary diff/patch (data, library, mit)2012-02-22JoeyAdams
bytestring-encoding220.0ByteString ↔ Text converter based on GHC.IO.Encoding (bsd3, data, library, text)2018-09-02MasahiroSakai
bytestring-encodings480.0checks to see if a given bytestring adheres to a certain encoding (data, library, mit)2018-08-31chessai
bytestring-from (deprecated in favor of bytestring-conversion)590.0A type-class to convert values from ByteString. (data, deprecated, library)2014-05-23ToralfWittner
bytestring-lexing2710.0Parse and produce literals efficiently from strict or lazy bytestrings. (bsd2, data, library)2015-06-07DonaldStewart, WrenThornton
bytestring-plain660.0Plain byte strings ('ForeignPtr'-less 'ByteString's) (bsd3, data, library)2015-09-07HerbertValerioRiedel
bytestring-read540.0fast ByteString to number converting library (data, library, mit)2015-06-15HirotomoMoriwaki
bytestring-time (deprecated in favor of text-time)190.0Library for Time parsing from ByteString (bsd3, data, deprecated, library)2016-12-13klangner
bytestring-trie1422.5An efficient finite map from (byte)strings to values. (bsd3, data, data-structures, library)2015-04-05WrenThornton
bytestring-typenats260.0Bytestrings with typenat lengths (bsd3, data, library)2017-01-26tsuraan
ca-province-codes400.0ISO 3166-2:CA Province Codes and Names (bsd3, data, library)2019-01-28lysergia
cache630.0An in-memory key/value store with expiration support (bsd3, cache, data, library)2018-08-12hverr
cached-traversable230.0Transparent, persistent caching of lazy, traversable structures (bsd3, data, library)2014-10-07ThomasTuegel
call-stack2470.0Use GHC call-stacks in a backward compatible way (data, library, mit)2016-10-03SimonHengel
cantor-pairing380.0Convert data to and from a natural number representation (data, library, mit)2019-01-25identicalsnowflake
capnp530.0Cap'n Proto for Haskell (capnproto, data, library, mit, network, program, rpc, serialization)2019-01-27isd
capped-list (deprecated in favor of enumerator)360.0A list-like type for lazy sequences, with a user-defined termination value. (bsd3, data, deprecated, library)2010-01-09JohnMillikin
carray3080.0A C-compatible array library. (bsd3, data, library)2017-07-18HenningThielemann, JedBrown
case-insensitive9160.0Case insensitive string comparison (bsd3, data, library, text)2018-03-14BasVanDijk
cassava-conduit1400.0Conduit interface for cassava package (bsd3, data, library)2018-11-30domdere
cassava-streams1310.0io-streams interface for the cassava CSV library. (bsd3, csv, data, io-streams, library, text)2018-10-09PeterJones
categorical-algebra170.0Categorical Monoids and Semirings (bsd3, data, library)2012-03-26JonathanFischoff
ccast (deprecated)260.0typesafe c-style casts; useful for FFI (bsd3, data, deprecated, library)2018-05-29chessai
cereal9442.0A binary serialization library (bsd3, data, library, parsing)2019-01-07EricMertens, ThomasDuBuisson, TrevorElliott
cereal-derive220.0Automatic deriving of Serialize using GHC.Generics (data, gpl, library)2011-11-06JaredHance
cereal-ieee754 (deprecated in favor of cereal)170.0Floating point support for the 'cereal' serialization library (bsd3, data, deprecated, library, parsing)2011-08-31JacobStanley
cereal-io-streams170.0io-streams support for the cereal binary serialization library (bsd3, data, io-streams, library, parsing)2016-07-08MichaelXavier
cereal-streams (deprecated in favor of wire-streams)180.0Use cereal to encode/decode io-streams. (bsd3, data, deprecated, io-streams, library, parsing)2016-07-09winterland
cereal-text1280.0Data.Text instances for the cereal serialization library (apache, data, library)2016-06-01ulikoehler
cereal-time340.0Serialize instances for types from `time` package. (bsd3, data, library)2017-11-06zohl
cereal-vector1310.0Serialize instances for Data.Vector types. (bsd3, data, library)2014-02-16AdamFoltzer
certificate (deprecated in favor of x509)7020.0Certificates and Key Reader/Writer (bsd3, data, deprecated, library)2013-10-07VincentHanquez
chain-codes350.0Library decoding chain codes from images (data, gpl, library)2014-03-16MateuszKowalczyk
charset5000.0Fast unicode character sets based on complemented PATRICIA tries (bsd3, data, library)2015-04-01EdwardKmett
chaselev-deque780.0Chase & Lev work-stealing lock-free double-ended queues (deques). (bsd3, concurrent, data, library)2015-03-08BrandonSimmons, RyanNewton, peter_fogg
chatty-utils1420.0Some utilities every serious chatty-based application may need. (agpl, data, library)2017-03-01implementation
checked380.0Bounds-checking integer types. (bsd3, data, library)2010-09-18AntoineLatter
choice1120.0A solution to boolean blindness. (data, library, public-domain)2017-08-16MathieuBoespflug
chunked-data1870.0Typeclasses for dealing with various chunked data representations (data, library, mit)2018-01-15MichaelSnoyman
church-maybe180.0Church encoded Maybe (bsd3, data, library)2018-08-01qfpl
church-pair420.0Church encoded pair (bsd3, data, library)2017-07-07mat8913
ciphersaber2430.0Implementation of CipherSaber2 RC4 cryptography. (data, library, mit, program)2015-12-16BartonMassey
classify850.0Library for classification of media files. (data, library, public-domain)2013-11-06DavidHimmelstrup
classyplate870.0Fuseable type-class based generics (bsd3, data, library)2018-11-14lazac
clean-unions (deprecated in favor of extensible)490.0Open unions without need for Typeable (bsd3, data, deprecated, library)2014-10-13FumiakiKinoshita
clist600.0Counted list (data, library)2017-12-14MatthewFarkasDyck
closed732.0Integers bounded by a closed interval (data, library, mit)2019-01-03cdparks
cmph180.0low level interface to CMPH (bsd3, data, data-structures, library)2016-04-30MarkWotton
code-builder610.0Simple system for generating code. (bsd3, data, library)2014-05-26AdamBergmark, ErikHesselink
codec1012.0Simple bidirectional serialization (bsd3, data, library)2017-04-21PatrickChilton
codec-libevent (deprecated)320.0Cross-platform structure serialisation (bsd3, data, deprecated, library, parsing, program)2008-01-27AdamLangley
coerce-util (deprecated in favor of coercible-utils)280.0utils for Data.Coerce (data, deprecated, library, mit)2018-04-20chessai
cofunctor (deprecated in favor of contravariant)240.0DEPRECATED: use the "contravariant" package (bsd3, data, deprecated, library)2011-09-20BrandonSimmons
collection-json2260.0Collection+JSON—Hypermedia Type Tools (data, library, mit)2019-01-31alunduil
colors590.0A type for colors (bsd3, data, library)2015-02-23FumiakiKinoshita
colour5792.0A model for human colour/color perception (data, graphics, library, mit)2017-12-04RussellOConnor
colour-accelerate740.0Working with colours in Accelerate (bsd3, data, graphics, library)2018-04-04TrevorMcDonell
colour-space410.0Instances of the manifold-classes for colour types (data, gpl, graphics, library, maths)2017-10-30leftaroundabout
combobuffer240.0Various buffer implementations (bsd3, data, library)2014-05-19JohnLato
comfort-graph1010.0Graph structure with type parameters for nodes and edges (bsd3, data, library)2018-08-31HenningThielemann
comic290.0A format for describing comics. (bsd3, data, library)2017-03-23davean
commutative790.0Commutative binary operations. (bsd3, data, library)2018-11-20athanclark
compact382.0Non-GC'd, contiguous storage for immutable data structures (bsd3, data, library)2017-02-28BenGamari, EdwardYang
compact-list170.0An append only list in a compact region (bsd3, data, library)2018-09-06harendra
compact-map200.0Compact Data.Map implementation using Data.Binary (bsd3, data, library)2008-11-09DavidHimmelstrup
compact-string (deprecated in favor of text)180.0Fast, packed and strict strings with Unicode support, based on bytestrings. (bsd3, data, deprecated, library)2008-11-27TwanVanLaarhoven
compact-string-fix630.0Same as compact-string except with a small fix so it builds on ghc-6.12 (bsd3, data, library)2011-08-19TonyHannan
compactmap1340.0A read-only memory-efficient key-value store. (bsd3, data, library)2017-07-28SimonMarechal
compose-ltr1372.0More intuitive, left-to-right function composition. (data, library, mit)2017-11-21Wizek
composition2030.0Combinators for unorthodox function composition (bsd3, data, library)2015-12-31DanBurton
composition-extra2240.0Combinators for unorthodox structure composition (bsd3, data, library)2015-09-17athanclark
composition-prelude4190.0Higher-order function combinators (bsd3, control, data, library)2018-11-27vmchale
composition-tree1410.0Composition trees for arbitrary monoids. (bsd3, data, library)2018-05-07LiamOConnorDavis
compositional-data480.0Compositional Data Types (bsd3, data, library)2018-12-27MatthewFarkasDyck
compound-types712.0Sum and Product types and such (data, library, mit, type-system, types)2017-09-29NikitaVolkov
compressed2432.0Compressed containers and reducers (bsd3, compression, data, library, mapreduce)2018-01-08EdwardKmett
comptrans480.0Automatically converting ASTs into compositional data types (bsd3, data, generics, library)2015-04-01JamesKoppel
concise1030.0Utilities for Control.Lens.Cons (bsd3, data, lenses, library)2018-02-04frasertweedale
concrete-haskell2620.0Library for the Concrete data format. (data, library, program)2017-12-10TomLippincott
concrete-haskell-autogen300.0Automatically generated Thrift definitions for the Concrete data format. (data, library)2017-09-03TomLippincott
concrete-typerep330.0Binary and Hashable instances for TypeRep (bsd3, data, library)2013-01-08ReinerPope
concurrent-batch190.0Concurrent batching queue based on STM with timeout. (bsd3, data, library)2018-07-28HarpoRoeder
concurrent-buffer240.0Concurrent expanding buffer (data, library, mit)2017-10-26NikitaVolkov
condorcet160.0Library for Condorcet voting (bsd3, data, library)2008-02-26GwernBranwen
conduit28402.5Streaming data processing library. (conduit, data, library, mit)2018-10-08MichaelSnoyman
conduit-combinators13220.0DEPRECATED Functionality merged into the conduit package itself (conduit, data, library, mit)2018-02-01MichaelSloan, MichaelSnoyman
conduit-concurrent-map292.0Concurrent, order-preserving mapping Conduit (conduit, data, library, mit)2018-08-31NiklasHambuechen
conduit-extra20220.0Batteries included conduit: adapters for common libraries. (conduit, data, library, mit)2019-02-19MichaelSnoyman
conduit-resumablesink280.0Allows conduit to resume sinks to feed multiple sources into it. (bsd3, conduit, data, library)2017-11-01AndrewMiller
conduit-throttle830.0Throttle Conduit Producers (bsd3, data, library)2017-12-21mtesseract
conduit-tokenize-attoparsec140.0Conduits for tokenizing streams. (bsd3, conduit, data, library, program)2016-01-31newhoggy, haskellworks
conffmt160.0A .conf file formatter (data, mit, program)2016-08-31yamadapc
confide740.0derive typeclass instances for decoding types from HOCON conf (bsd3, data, library)2018-03-08amilkov
config-manager520.0Configuration management (configuration, data, gpl, library)2016-08-13guyonvarch
configifier1590.0parser for config files, shell variables, command line args. (agpl, configuration, data, library)2016-07-05MatthiasFischmann
configuration240.0Simple data type for application configuration. (bsd3, data, library)2012-12-07HiromiIshii
configurator2472.0Configuration management (bsd3, configuration, data, library)2014-07-02BryanOSullivan
configurator-export550.0Pretty printer and exporter for configurations from the "configurator" library. (bsd3, configuration, data, library)2016-05-08jle
configurator-ng440.0The next generation of configuration management (bsd3, configuration, data, library)2016-10-31LeonSmith
congruence-relation180.0Decidable congruence relations for Haskell: up to you whether this is a joke (data, library, mit)2014-12-05JonSterling
connection-pool1560.0Connection pool built on top of resource-pool and streaming-commons. (bsd3, data, library, network)2018-03-03PeterTrsko
constaparser430.0Parse ByteStrings of a prescribed length. (bsd3, data, library)2018-06-22chessai
constrained-dynamic380.0Dynamic typing with retained constraints (data, library, mit)2016-08-03jh3141
container2020.0Containers abstraction and utilities. (apache, data, library)2018-12-18danilo2, iamrecursion
containers-deepseq (deprecated in favor of containers)430.0Provide orphan NFData instances for containers as needed. (deprecated) (bsd3, data, deprecated, library)2012-01-19MichaelSnoyman
containers-verified450.0Formally verified drop-in replacement of containers (data, library, mit)2018-06-18JoachimBreitner
context-stack230.0An abstraction of a stack and stack-based monadic context. (data, library, mit)2014-08-29thinkpad20
contiguous-checked350.0contiguous with bounds checks (bsd3, data, library, unclassified)2019-01-02andrewthad
contiguous-fft1300.0dft of contiguous memory structures (bsd3, data, library)2019-02-16chessai
contravariant7372.25Contravariant functors (bsd3, control, data, library)2018-07-01EdwardKmett, EricMertens, ryanglscott
control-monad-attempt (deprecated)580.0Monad transformer for attempt. (deprecated) (bsd3, data, deprecated, failure, library)2012-01-19MichaelSnoyman, NicolasPouillard
conversion600.0Universal converter between values of different types (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-bytestring420.0"Conversion" instances for the "bytestring" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-case-insensitive210.0"Conversion" instances for the "case-insensitive" library (control, conversion, data, library, mit)2015-04-23NikitaVolkov
conversion-text460.0"Conversion" instances for the "text" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
convert1110.0Safe and unsafe data conversion utilities with strong type-level operation. checking. (apache, data, library)2018-12-18danilo2, iamrecursion
convertible3572.0Typeclasses and instances for converting between types (bsd3, data, library)2015-04-20ErikHesselink, JohnGoerzen, NicolasWu, rsoeldner
convertible-ascii240.0convertible instances for ascii (data, failure, library, public-domain)2011-12-19MasatakeDaimon
convertible-text (deprecated)4040.0Typeclasses and instances for converting between types (deprecated) (bsd3, data, deprecated, failure)2012-01-19MichaelSnoyman
coroutine-iteratee (deprecated)220.0Bridge between the monad-coroutine and iteratee packages. (concurrency, data, deprecated, library)2011-12-31MarioBlazevic
count150.0Bijective mappings between values and possibly infinite prefixes of [0..] (bsd3, data, library)2014-06-10Maxdamantus
countable740.0Countable, Searchable, Finite, Empty classes (bsd3, data, library)2016-06-22AshleyYakeley
counter302.0An object frequency counter. (data, library, mit)2017-09-04wei2912
country-codes1020.0ISO 3166 country codes and i18n names. (bsd3, data, library)2019-02-12FelipeLessa, JeanPhilippeMoresmau
cpio-conduit350.0Conduit-based CPIO (apache, data, library)2015-08-04DanAloni
cpu1132.0Cpu information and properties helpers. (bsd3, data, library)2013-11-12VincentHanquez
cqrs800.0Command-Query Responsibility Segregation (data, library, mit)2015-09-17BardurArantsson
cqrs-core270.0Command-Query Responsibility Segregation (data, library, mit)2015-09-16BardurArantsson
cqrs-memory160.0Memory backend for the cqrs package. (data, library, mit)2015-09-16BardurArantsson
cqrs-postgresql200.0PostgreSQL backend for the cqrs package. (data, library, mit)2015-09-16BardurArantsson
cqrs-sqlite3370.0SQLite3 backend for the cqrs package. (data, library, mit)2013-03-10BardurArantsson
cqrs-test160.0Command-Query Responsibility Segregation Test Support (data, library, mit)2013-03-10BardurArantsson
cqrs-testkit150.0Command-Query Responsibility Segregation Test Support (data, library, mit)2015-09-16BardurArantsson
cqrs-types240.0Command-Query Responsibility Segregation. Modules for the basic types. (data, library, mit)2015-09-17BardurArantsson
critbit660.0Crit-bit maps and sets (bsd3, data, library)2014-07-04BryanOSullivan
crjdt-haskell680.0A Conflict-Free Replicated JSON Datatype for Haskell (bsd3, data, library)2017-05-28amarpotghan
crypt-sha512420.0Pure Haskell implelementation for GNU SHA512 crypt algorithm (bsd3, data, library)2017-07-02phadej
crypto-api6152.0A generic interface for cryptographic operations (bsd3, cryptography, data, library)2018-01-05ThomasDuBuisson
crypto-api-tests800.0A test framework and KATs for cryptographic operations. (bsd3, cryptography, data, library)2014-01-08ThomasDuBuisson
cryptohash8851.25collection of crypto hashes, fast, pure and practical (bsd3, cryptography, data, library)2016-03-25VincentHanquez
cryptohash-md52010.0Fast, pure and practical MD5 implementation (bsd3, cryptography, data, library)2016-06-28HerbertValerioRiedel
cryptohash-sha11930.0Fast, pure and practical SHA-1 implementation (bsd3, cryptography, data, library)2016-06-28HerbertValerioRiedel
cryptohash-sha2562892.25Fast, pure and practical SHA-256 implementation (bsd3, cryptography, data, library)2017-11-13AustinSeipp, HerbertValerioRiedel
cryptohash-sha512510.0Fast, pure and practical SHA-512 implementation (bsd3, cryptography, data, library)2016-10-23HerbertValerioRiedel
css-syntax1510.0High-performance CSS tokenizer and serializer. (data, library, mit)2018-09-19wereHamster
csv-conduit3440.0A flexible, fast, conduit-based CSV parser library for Haskell. (bsd3, conduit, csv, data, library, text)2018-06-05MichaelXavier, OzgunAtaman
csv-enumerator810.0A flexible, fast, enumerator-based CSV parser library for Haskell. (bsd3, data, library)2013-01-21OzgunAtaman
csv-table250.0Scripts for manipulating tables stored as CSV files (data, library, mit)2016-04-21ranjitjhala
cuckoo-filter970.0Pure and impure Cuckoo Filter (data, library, mit, program)2018-12-12ChrisCoffey
cudd460.0Bindings to the CUDD binary decision diagrams library (bsd3, data, library)2017-01-09adamwalker
currencies980.0Currencies representation, pretty printing and conversion (bsd3, data, library)2018-06-22alx741, DanielCampoverde
currency340.0Types representing standard and non-standard currencies (data, library)2013-09-07StephenWeber
currency-codes1180.0ISO-4217 Currency Codes (data, library, mit)2018-03-19KtorZ
currency-convert282.0Typesafe currency conversion (bsd3, data, library)2016-08-16pigworts2
curry260.0Curry types (bsd3, data, library)2018-01-25MatthewFarkasDyck
cve260.0simple and efficient cve datatype (bsd3, data, library)2018-03-21chessai
czipwith1270.0CZipWith class and deriving via TH (bsd3, data, library)2018-10-07lspitzner
d10912.0Digits 0-9 (data, library, mit)2018-10-28chris_martin, Monoid_Mary
data-accessor3210.0Utilities for accessing and manipulating fields of records (bsd3, data, library)2018-08-31HenningThielemann, LukePalmer
data-accessor-monadLib210.0Accessor functions for monadLib's monads (data, library, monads)2009-02-11RussellOConnor
data-accessor-monads-fd380.0Use Accessor to access state in monads-fd State monad class (bsd3, data, library)2011-02-26HenningThielemann
data-accessor-monads-tf400.0Use Accessor to access state in monads-tf State monad type family (bsd3, data, library)2012-04-10HenningThielemann
data-accessor-mtl1010.0Use Accessor to access state in mtl State monad class (bsd3, data, library)2014-07-01HenningThielemann
data-accessor-template2450.0Utilities for accessing and manipulating fields of records (bsd3, data, library)2018-08-31HenningThielemann, LukePalmer
data-accessor-transformers1670.0Use Accessor to access state in transformers State monad (bsd3, data, library)2016-01-18HenningThielemann
data-binary-ieee7543250.0Parser/Serialiser for IEEE-754 floating-point values (data, library, mit)2013-07-07JohnMillikin
data-bword920.0Extra operations on binary words of fixed length (bsd3, data, library)2016-07-06MikhailVorozhtsov
data-carousel150.0A rotating sequence data structure (data, library, mit)2014-11-12JonSterling
data-cell280.0Generic cellular data representation library (bsd3, data, library)2015-07-07patrykz
data-check (deprecated)470.0Library for checking and normalization of data (e.g. from web forms) (bsd3, data, deprecated, library, web)2017-05-21mrkkrp
data-checked850.0Type-indexed runtime-checked properties (bsd3, data, library)2014-02-09MikhailVorozhtsov
data-constructors250.0Generically compare data by their constructors (bsd3, data, library)2017-09-16dailectic
data-cycle270.0a cyclic doubly linked list (bsd3, data, library)2012-03-10TobiasBrandt
data-default5282.25A class for types with a default value (bsd3, data, library)2016-06-25LukasMai
data-default-class3620.0A class for types with a default value (bsd3, data, library)2016-06-25LukasMai
data-default-extra250.0A class for types with a default value. (bsd3, data, library)2017-01-05PeterTrsko
data-default-generics160.0A class for types with a default value (bsd3, data, library)2014-02-20jcristovao
data-default-instances-base2260.0Default instances for types in base (bsd3, data, library)2016-06-25LukasMai
data-default-instances-bytestring160.0Default instances for (lazy and strict) ByteString, Builder and ShortByteString. (bsd3, data, library)2016-02-07PeterTrsko
data-default-instances-case-insensitive180.0Default instance for CI type from case-insensitive package. (bsd3, data, library)2016-02-07PeterTrsko
data-default-instances-containers2540.0Default instances for types in containers (bsd3, data, library)2013-04-02LukasMai
data-default-instances-dlist2310.0Default instances for types in dlist (bsd3, data, library)2013-04-02LukasMai
data-default-instances-new-base200.0Default instances for types in newer versions of base package. (bsd3, data, library)2017-01-05PeterTrsko
data-default-instances-old-locale2680.0Default instances for types in old-locale (bsd3, data, library)2013-04-03LukasMai
data-default-instances-text180.0Default instances for (lazy and strict) Text and Text Builder. (bsd3, data, library)2016-02-07PeterTrsko
data-default-instances-unordered-containers240.0Default instances for unordered-containers. (bsd3, data, library)2016-02-07PeterTrsko
data-default-instances-vector190.0Default instances for types defined in vector package (bsd3, data, library)2016-02-07PeterTrsko
data-dispersal570.0Space-efficient and privacy-preserving data dispersal algorithms. (cryptography, data, lgpl, library)2014-10-05PeterRobinson
data-diverse2210.0Extensible records and polymorphic variants. (bsd3, data, library, records)2018-07-02louispan
data-diverse-lens1660.0Isos & Lens for Data.Diverse.Many and Prisms for Data.Diverse.Which (bsd3, data, library, records)2018-06-30louispan
data-dword2160.0Stick two binary words together to get a bigger one (bsd3, data, library)2018-01-13MikhailVorozhtsov
data-easy400.0Consistent set of utility functions for Maybe, Either, List and Monoids. (bsd3, data, library)2016-07-26jcristovao
data-elf280.0Executable and Linkable Format (ELF) data structures. (bsd3, data, library)2016-07-23MikhailVorozhtsov
data-embed150.0Embed files and other binary blobs inside executables without Template Haskell. (data, library, mit, program)2016-01-01AntonEkblad
data-endian950.0Endian-sensitive data (bsd3, data, library)2016-07-07MikhailVorozhtsov
data-extend-generic190.0Extend Haskell data or newtype like in OOP languages (bsd3, data, library)2015-12-16YLiLarry
data-filepath460.0A type safe file path data structure (bsd3, data, library)2015-02-12MaxwellSwadling, domdere
data-filter270.0Utilities for filtering (bsd2, data, library)2018-05-17boonami
data-fin400.0Finite totally ordered sets (bsd3, data, library)2014-08-16WrenThornton
data-fin-simple160.0Simple integral finite set (bsd3, data, library)2015-06-17seagull
data-fix1522.0Fixpoint data types (bsd3, data, library)2017-09-16AntonKholomiov
data-fix-cse320.0Common subexpression elimination for the fixploint types. (bsd3, data, library)2015-03-30AntonKholomiov
data-flags1270.0A package for working with bit masks and flags in general. (bsd3, data, library)2017-07-29MikhailVorozhtsov
data-flagset160.0An efficient data type for sets of flags (data, library, mit)2015-07-12TobiasBrandt
data-foldapp430.0Fold function applications. Framework for variadic functions. (bsd3, data, library)2018-01-21erisco
data-function-meld190.0Map the arguments and return value of functions. (bsd3, data, library)2016-05-25erisco
data-function-tacit160.0Write functions in tacit (pointless) style using Applicative and De Bruijn index notation. (bsd3, data, library)2016-06-01erisco
data-has942.0Simple extensible product (bsd3, data, library)2017-08-17winterland
data-hash1760.0Combinators for building fast hashing functions. (bsd3, data, library)2015-05-20DanielGorin
data-index250.0Extending the concept of indices for lists and other containers (bsd3, data, library)2018-05-11IlyaPershin
data-interval1170.0Interval datatype, interval arithmetic and interval-based containers (bsd3, data, library, math)2017-09-02MasahiroSakai
data-inttrie2470.0A simple lazy, infinite trie from integers (bsd3, data, library)2018-03-31LukePalmer, ThomasDuBuisson
data-ivar360.0Write-once variables with concurrency support (bsd3, concurrency, data, library)2008-10-20GregoryCrosswhite, LukePalmer
data-json-token160.0Json Token datatype (bsd3, data, json, library, program)2016-02-02newhoggy, haskellworks
data-kiln170.0Sculpt mutable recursive data with reference equality; bake it using a data kiln into an immutable lazy structure (bsd3, data, library)2014-12-17kwf
data-layout160.0Read/write arbitrary binary layouts to a "Data.Vector.Storable". (bsd3, data, library)2013-10-06JacobStanley
data-lens-light2130.0Simple lenses, minimum dependencies (data, lenses, library, mit)2016-05-26RomanCheplyaka
data-lens-template3030.0Utilities for Data.Lens (bsd3, data, library)2016-07-17EdwardKmett, JoelBurget, RussellOConnor
data-list-sequences130.0Utilities for working with sequences within lists. (data, gpl, library)2011-08-13JonasKramer
data-list-zigzag520.0A list but with a balanced enumeration of Cartesian product. (bsd3, data, library)2018-02-27erisco
data-map-multikey250.0Data.Map with multiple, unique keys (data, library, mit)2015-05-13JasonHickner
data-memocombinators2152.0Combinators for building memo tables. (bsd3, data, library)2013-12-14DmitryMalikov, LukePalmer, ThomasDuBuisson
data-msgpack1082.0A Haskell implementation of MessagePack (bsd3, data, library, program)2018-07-20iphydf
data-msgpack-types560.0A Haskell implementation of MessagePack. (bsd3, data, library)2018-07-20iphydf
data-nat280.0data Nat = Zero | Succ Nat (bsd3, data, library, math)2012-09-23GaborLehel
data-object (deprecated in favor of aeson)1170.0Represent hierachichal structures, called objects in JSON. (deprecated) (bsd3, data, deprecated, library)2012-01-18MichaelSnoyman
data-or700.0A data type for non-exclusive disjunction. (bsd3, data, library)2015-05-30WrenThornton
data-ordlist3032.25Set and bag operations on ordered lists (bsd3, data, library, list)2014-11-20LeonSmith
data-partition380.0A pure disjoint set (union find) data structure (bsd3, data, library)2015-04-03LukePalmer
data-quotientref160.0Reference cells that need two independent indices to be accessed. (bsd3, data, library)2008-10-20LukePalmer
data-ref870.0Unify STRef and IORef in plain Haskell 98 (bsd3, data, library)2019-01-22HenningThielemann
data-reify1720.0Reify a recursive data structure into an explicit graph. (bsd3, data, language, library, parsing, reflection)2015-05-19AndyGill, ryanglscott
data-reify-cse220.0Common Sub-Expression Elimination for graphs generated by Data.Reify. (bsd3, data, language, library)2013-05-08SebastiaanVisser
data-rev210.0A typeclass for reversing order of contents. (bsd3, data, library)2015-01-01jxv
data-rope130.0Ropes, an alternative to (Byte)Strings. (data, library)2011-02-11PierreEtienneMeunier
data-serializer1440.0Common API for serialization libraries (bsd3, data, library)2018-03-09MikhailVorozhtsov
data-spacepart (deprecated in favor of spacepart)270.0Deprecated. Now called "spacepart". Space partitioning data structures. (bsd3, data, deprecated, library)2009-02-16CoreyOConnor
data-standards270.0A collection of standards representable by simple data types. (data, library, mpl)2018-07-24ageitilt
data-store490.0Type safe, in-memory dictionary with multidimensional keys. (bsd3, data, library)2013-08-19PetrPilar
data-sword860.0Shorter binary words (bsd3, data, library)2017-07-29MikhailVorozhtsov
data-tensor170.0Tensor and Group typeclasses (data, library, mit)2015-06-19TobiasDammers
data-textual1400.0Human-friendly textual representations. (bsd3, data, library, text)2014-06-17MikhailVorozhtsov
data-timeout850.064-bit timeouts of nanosecond precision (bsd3, concurrency, data, library)2018-10-22MikhailVorozhtsov
data-transform620.0Functions to transform data structures. (bsd3, data, library)2018-03-15JonasScholl
data-treify340.0Reify a recursive data structure into an explicit graph. (bsd3, data, language, library, parsing, reflection)2014-03-18ConalElliott
data-type220.0Basic type wrangling types and classes (bsd3, data, library, type-system)2011-09-23IainAlexander
data-util470.0utilities for handle data (bsd3, data, development, library, utils)2015-09-08KatsutoshiItoh
data-variant580.0A variant data type, useful for modeling dynamically-typed programming languages (bsd3, data, library)2014-07-31TobiasDammers
datasets2632.0Classical data sets for statistics and machine learning (data, data-mining, library, machine-learning, mit, statistics)2019-02-12glutamate, ocramz, stites
date-conversions510.0Date conversions (data, date, library, mit)2018-02-07joshuaclayton
dates1050.0Small library for parsing different dates formats. (bsd3, data, library)2018-08-12IlyaPortnov
datetime640.0Utilities to make Data.Time.* easier to use (data, library)2015-07-20EricSessoms, EugenyDzhurinsky, jsl, stackbuilders
datetime-sb330.0Utilities to make Data.Time.* easier to use. (data, library)2015-05-28jsl
dawg940.0Directed acyclic word graphs (bsd3, data, data-structures, library)2013-07-22JakubWaszczuk
dawg-ord812.0Directed acyclic word graphs (bsd3, data, data-structures, library)2017-01-09JakubWaszczuk
ddate160.0Discordian Date Types for Haskell (data, gpl, library)2016-06-30hellerve
deiko-config220.0Small and typesafe configuration library. (bsd3, data, library)2017-11-09YorickLaupa
delimited-text850.0Parse character delimited textual data (bsd3, data, library)2011-03-23DonaldStewart, StefanKersten
delta530.0A library for detecting file changes (data, lgpl, library, program)2015-07-23muzzle
dense140.0Mutable and immutable dense multidimensional arrays (bsd3, data, library)2016-06-19cchalmers
dense-int-set580.0Dense int-set (data, library, mit)2018-10-08NikitaVolkov
dependent-map2512.0Dependent finite maps (partial dependent products) (data, dependent-types, library)2016-12-21JamesCook, RyanTrinkle
dependent-state230.0Control structure similar to Control.Monad.State, allowing multiple nested states, distinguishable by provided phantom types. (apache, data, library)2016-01-30danilo2, iamrecursion
dependent-sum2432.25Dependent sum type (data, dependent-types, library, public-domain)2016-09-02JamesCook, RyanTrinkle
derive-IG250.0Macro to derive instances for Instant-Generics using Template Haskell (bsd3, data, generics, library)2010-09-06HiromiIshii
derive-enumerable190.0Generic instances for enumerating complex data types (data, generics, gpl, library)2015-05-27mgoszcz2
derive-trie240.0Automatic derivation of Trie implementations. (bsd3, data, library)2012-02-08AndreasBaldeau
deriveJsonNoPrefix300.0Derive ToJSON/FromJSON instances in a more prefix-friendly manner. (apache, data, library)2018-07-17igrep
descrilo1400.0Loads a list of items with fields (configuration, data, gpl, library, parser)2018-11-03mgmillani
detour-via-sci260.0JSON and CSV encoding for rationals as decimal point numbers. (csv, data, json, library, math, mpl, numeric)2018-06-22philderbeast
detour-via-uom160.0JSON and CSV encoding for quantities. (csv, data, json, library, math, mpl, numeric, physics)2018-06-22philderbeast
dgim210.0Implementation of DGIM algorithm (algorithms, data, library, mit)2015-04-04musically_ut
dice-entropy-conduit420.0Cryptographically secure n-sided dice via rejection sampling. (cryptography, data, lgpl, library)2014-09-09PeterRobinson
dicom360.0A library for reading and writing DICOM files in the Explicit VR Little Endian transfer syntax. (data, gpl, library, medical)2015-12-11PhilFreeman, karchie
diff31650.0Perform a 3-way difference of documents (bsd3, data, library)2018-04-30OliverCharles
diffmap250.0diff on maps (bsd3, data, library)2018-06-18chessai
digit3372.0A data-type representing digits 0-9 and other combinations (bsd3, data, library)2018-09-04TonyMorris, qfpl
digits970.0Converts integers to lists of digits and back. (bsd3, data, library)2016-07-08HenryBucklow
direct-binary-files180.0Serialization and deserialization monads for streams and ByteStrings. (bsd3, data, library)2012-12-10IreneKnapp
direct-murmur-hash210.0An implementation of the MurmurHash3 algorithm (bsd3, data, library)2015-02-24IreneKnapp, dmbarbour
directory-tree3482.0A simple directory-like tree datatype, with useful IO functions (bsd3, data, library, system)2016-09-05BrandonSimmons
dirfiles410.0 (bsd3, data, library)2014-09-25HugoGomes
discrete130.0replacement for enum (bsd3, data, library)2018-09-17chessai
discrete-intervals500.0Discrete Intervals (bsd3, data, library)2017-12-17chessai
discrete-space-map430.0A discrete space map. (bsd3, data, library)2016-02-13SjoerdVisscher
discrimination872.5Fast generic linear-time sorting, joins and container construction. (bsd3, data, library, sorting)2017-10-18EdwardKmett, GeorgeWilson
disjoint-set220.0Persistent disjoint-sets, a.k.a union-find. (bsd3, data, library)2012-10-15MaxwellSayles
disjoint-set-stateful360.0Monadic disjoint set (data, library, mit)2017-04-23clinton
diskhash1282.0Disk-based hash table (data, library, mit)2017-11-27luispedro
dlist7790.0Difference lists (bsd3, data, library)2018-09-13DonaldStewart, SeanLeather
dlist-instances1460.0Difference lists instances (bsd3, data, library)2016-07-23GregWeber, MichaelSnoyman, SeanLeather
dlist-nonempty480.0Non-empty difference lists (bsd3, data, library)2017-07-31phadej
do-list1100.0Do notation for free (bsd3, data, library, list, syntax)2016-09-19TarasSerduke
dockerfile400.0A Haskell DSL for generating Dockerfiles (data, library, mit)2018-09-14ChristopherReichert
dotnet-timespan430.0.NET TimeSpan (bsd3, data, library)2016-03-13YorickLaupa
double-metaphone240.0Haskell bindings to a C double-metaphone implementation. (data, library)2016-03-08ChristianMarie
dson330.0Haskell DogeScript Object Notation Parser (data, gpl, library)2014-06-06lcycon
dson-parsec240.0DSON parser. (data, library, mit)2014-06-23alvare
dstring1620.0Difference strings (bsd3, data, library)2012-09-23BasVanDijk
dtab660.0Harmonix (Guitar Hero, Rock Band) DTA/DTB metadata library (bsd3, data, library, program)2018-04-28mtolly
dtd-text340.0Parse and render XML DTDs (bsd3, data, library, parsing, text, xml)2014-01-08YitzGale, M15K
dtd-types1020.0Basic types for representing XML DTDs (bsd3, data, library, text, xml)2018-11-03YitzGale, M15K
dual-tree3830.0Rose trees with cached and accumulating monoidal annotations (bsd3, data, library)2018-05-16BrentYorgey, RyanYates, jeffreyrosenbluth, bergey, cchalmers
dublincore-xml-conduit570.0XML streaming parser/renderer for the Dublin Core standard elements. (data, library, public-domain)2017-11-23koral
dwarf360.0Parser for DWARF debug format. (bsd3, data, library)2010-03-21ErikCharlebois
dwarf-el850.0Parser for DWARF debug format. (bsd3, data, library)2018-03-18EyalLotem
dynamic-graphs700.0Dynamic graph algorithms (bsd3, data, library)2019-01-23JasperVanDerJeugt
dynamic-mvector920.0A wrapper around MVector that enables pushing, popping and extending. (bsd3, data, library)2017-03-10AndrasKovacs
dynamic-object310.0Object-oriented programming with duck typing and singleton classes. (bsd3, data, library)2013-01-15TakayukiMuranushi
dynamic-state2150.0Optionally serializable dynamic state keyed by type (data, gpl, library, yi)2018-06-07DmitryIvanov, MateuszKowalczyk, fread2281, JaroReinders
edit280.0A monad for rewriting things. (bsd3, data, library)2018-09-03theindigamer
edit-distance-vector660.0Calculate edit distances and edit scripts between vectors. (algorithms, bsd3, data, data-structures, library)2016-05-24ThomasSutton
edit-lenses270.0Symmetric, stateful edit lenses (bsd3, data, library)2012-01-27DanielWagner
edit-lenses-demo210.0Programs demoing the use of symmetric, stateful edit lenses (bsd3, data, program)2016-07-24DanielWagner
editable200.0Interactive editors for Generics (bsd2, data, library)2014-10-05MaxwellSwadling
eigen5431.5Eigen C++ library (linear algebra: matrices, sparse matrices, vectors, numerical solvers). (algebra, algorithms, bsd3, data, library, math, numeric, statistics)2018-12-11OlegSidorkin, chessai
either-both370.0Either or both (bsd3, data, library)2018-05-16MatthewFarkasDyck
either-list-functions240.0Functions involving lists of Either (apache, data, library)2018-09-11chris_martin
either-unwrap (deprecated in favor of either)630.0Functions for probing and unwrapping values inside of Either. (bsd3, data, deprecated, library)2009-11-30GregoryCrosswhite
elerea-sdl200.0Elerea FRP wrapper for SDL (data, library)2012-12-15StephenWeber
elf2030.0An Elf parser (bsd3, data, library)2018-12-26ErikCharlebois, wangbj
elm-export-persistent500.0elm-export persistent entities (data, database, library, mit, web)2018-03-12WilliamCasarin
empty-monad340.0A container that always has no values. (bsd3, data, library)2017-02-02vadimvinnik
encode-string230.0Safe string conversion and encoding (data, library, mit, string, text)2017-03-15minad
encoding-io250.0Encoding-aware file I/O. (bsd3, data, library)2016-08-05terrorjack
endo450.0Endomorphism utilities. (bsd3, data, library)2016-02-28PeterTrsko
engineering-units240.0A numeric type for managing and automating engineering units. (bsd3, data, library)2015-10-03TomHawkins
entropy4930.0A platform independent entropy source (bsd3, cryptography, data, library)2018-11-14ThomasDuBuisson
enum-subset-generate380.0Generate an ADT being a subset of another ADT, and the corresponding mappings. (bsd3, data, library)2018-05-280xd34df00d
enum-types160.0small enum types (bsd3, data, library)2018-10-23andrewthad
enumerable270.0A typeclass for enumerating all values a type (bsd3, data, library)2009-08-16DanielPeebles
enumerate850.0enumerate all the values in a finite type (automatically) (data, library, mit, program)2017-05-02sboo
enumeration130.0A practical API for building recursive enumeration procedures and enumerating datatypes. (bsd3, data, library, serialization, test, testing)2014-10-16emc2
enumerator (deprecated)4640.0Reliable, high-performance processing with left-fold enumerators (data, deprecated, enumerator, library, mit)2013-10-13JohnMillikin
enumfun140.0Finitely represented /total/ EnumMaps (bsd3, data, library)2012-10-09LiyangHu
enummapmap370.0Map of maps using Enum types as keys (bsd3, data, data-structures, library)2014-02-01MatthewWest
enummapset1632.0IntMap and IntSet with Enum keys/elements. (bsd3, data, data-structures, library)2019-01-02MichalTerepeta, MikolajKonarski
enummapset-th890.0TH-generated EnumSet/EnumMap wrappers around IntSet/IntMap. (bsd3, data, library)2016-08-01LiyangHu
enumset1150.0Sets of enumeration values represented by machine words (bsd3, data, foreign, library)2018-02-16HenningThielemann
equivalence3760.0Maintaining an equivalence relation implemented as union-find using STT. (algorithms, bsd3, data, library)2019-02-18PatrickBahr
ess140.0The type-level S combinator in Haskell. (data, library, mit)2015-04-25MichaelOChurch
eths-rlp130.0Ethereum Recursive Length Prefix Encoding (contracts, data, ethereum, finance, library, mit, network)2016-12-25LogvinovLeon
euler-tour-tree220.0Euler tour trees (data, library, public-domain)2018-09-04koral
event-handlers140.0Event handlers (control, data, library, public-domain)2008-12-15JamesCook
event-list2560.0Event lists with relative or absolute time stamps (data, library)2018-02-16HenningThielemann
every-bit-counts170.0A functional pearl on encoding and decoding using question-and-answer strategies (bsd3, data, library)2010-09-27DonaldStewart
ex-pool370.0Another fork of resource-pool, with a MonadIO and MonadCatch constraint (bsd3, data, library)2018-01-07KimAltintop
exact-pi3130.0Exact rational multiples of pi (and integer powers of pi) (data, library, mit)2018-12-14dmcclean, Bodigrim
exinst1452.0Dependent pairs and their instances. (bsd3, data, library)2018-10-05RenzoCarbonara
exinst-aeson770.0Dependent pairs and their instances. (bsd3, data, library)2018-10-05RenzoCarbonara
exinst-bytes750.0Dependent pairs and their instances. (bsd3, data, library)2018-10-05RenzoCarbonara
exinst-cereal230.0Dependent pairs and their instances. (bsd3, data, library)2018-10-05RenzoCarbonara
exinst-deepseq (deprecated in favor of exinst)190.0Derive instances for the `deepseq` library for your existential types. (bsd3, data, deprecated, library)2016-10-13RenzoCarbonara
exinst-hashable (deprecated in favor of exinst)240.0Derive instances for the `hashable` library for your existential types. (bsd3, data, deprecated, library)2016-10-13RenzoCarbonara
exinst-serialise230.0Dependent pairs and their instances. (bsd3, data, library)2018-10-05RenzoCarbonara
existential200.0Existential types with lens-like accessors. (data, library, mit)2016-10-28SimonHudon, bandali
explicit-constraint-lens160.0Fully-flexible polymorphic lenses, without any bizarre profunctors (data, gpl, library)2017-12-30leftaroundabout
expressions2111.5Expressions and Formulae a la carte (bsd3, data, library, logic, math)2018-10-05jakubdaniel
expressions-z31420.0Encode and Decode expressions from Z3 ASTs (bsd3, data, library, logic, math)2018-10-05jakubdaniel
extensible5090.0Extensible, efficient, optics-friendly data types and effects (bsd3, data, library, monads, records)2018-12-19FumiakiKinoshita
extensible-data250.0Sums/products/lists/trees which can be extended in other modules (data, library, public-domain)2012-02-17AaronBlack
extensible-sp222.0light-weight, extensible sums and products over types and kinds (data, library, mit)2017-04-22jadaska
extractable-singleton660.0A functor, where the "stored" value is isomorphic to Identity (bsd3, data, library)2017-05-10athanclark
facts250.0Refined types (bsd3, data, library)2018-06-16mrkkrp
fadno-braids740.0Braid representations in Haskell (algebra, bsd2, data, library, math)2018-03-18spopejoy
failable-list (deprecated in favor of enumerator)180.0A list-like type for lazy streams, which might terminate with an error. (bsd3, data, deprecated, error-handling, library)2009-12-07JohnMillikin
fair-predicates180.0Fair Predicates (data, library, public-domain)2009-03-25SebastianFischer
fake500.0Randomly generated fake data (bsd3, data, library)2018-04-25DougBeardsley
familiar-reflection220.0Reifies arbitrary terms into types that can be reflected back into terms (bsd3, data, library, reflection)2018-05-08MatthewFarkasDyck
family-tree920.0A family tree library for the Haskell programming language. (bsd3, data, genealogy, library)2015-04-16NathanVanDoorn
fast-builder690.0Fast ByteString Builder (data, library, public-domain)2018-11-21AkioTakano
fast-digits720.0The fast library for integer-to-digits conversion. (data, gpl, library)2016-07-09Bodigrim
fast-nats170.0Natural Numbers with no overhead (data, library, mit)2016-12-24mckeankylej
fasta3420.0A simple, mindless parser for fasta files. (data, gpl, library)2017-02-13GregorySchwartz
fastsum490.0A fast open-union type suitable for 100+ contained alternatives (bsd3, data, library)2018-06-05patrick_thomson
fay-text1380.0Fay Text type represented as JavaScript strings (data, fay, library, mit, text)2015-02-11AdamBergmark
fca150.0Algo for Formal Concept Analysis (agpl, data, library)2014-07-12Rpr
fclabels8272.25First class accessor labels implemented as lenses. (bsd3, data, lenses, library)2018-02-13AdamBergmark, ErikHesselink, SebastiaanVisser
fclabels-monadlib300.0MonadLib monadic interface for the "fclabels" package. (bsd3, data, library)2012-04-03BardurArantsson
fields150.0First-class record field combinators with infix record field syntax. (bsd3, data, library)2010-08-11JussiKnuuttila
fieldwise140.0Provides Fieldwise typeclass for operations of fields of records treated as independent components. (bsd2, data, library)2014-07-18GracjanPolak
file-embed4602.25Use Template Haskell to embed file contents directly. (bsd3, data, library)2018-07-29MichaelSnoyman
file-embed-lzma410.0Use Template Haskell to embed (LZMA compressed) data. (bsd3, data, library)2018-04-05phadej
file-embed-poly (deprecated)110.0Use Template Haskell to embed file contents directly. (bsd3, data, deprecated, library)2016-08-02
filecache990.0A cache system associating values to files. (bsd3, data, library)2018-11-23SimonMarechal
filediff740.0Diffing and patching module (bsd3, data, library)2015-05-25bgwines
filestore5650.0Interface for versioning file stores. (bsd3, data, library)2018-12-21GwernBranwen, JohnMacFarlane
filesystem-conduit (deprecated in favor of conduit-combinators)690.0Use system-filepath data types with conduits. (deprecated) (conduit, data, deprecated, library, mit)2014-03-20MichaelSnoyman
filesystem-trees630.0Recursively manipulate and traverse filesystems as lazy rose trees. (bsd3, data, library, system)2015-05-03AdamCurtis
filtrable1160.0Class of filtrable containers (bsd3, data, library)2018-05-16MatthewFarkasDyck
fin572.0Nat and Fin: peano naturals and finite numbers (bsd3, data, library)2018-03-16phadej
fingertree-tf130.0Generic finger-tree structure using type families. (bsd3, data, data-structures, library)2014-10-05pawel834
finite-field620.0Finite Fields (algebra, bsd3, data, library, math)2016-10-02MasahiroSakai
finite-typelits942.0A type inhabited by finitely many values, indexed by type-level naturals. (bsd3, data, library)2018-07-12mniip
first-and-last180.0First and Last generalized to return up to n values (bsd3, data, library)2015-10-16andrus
first-class-patterns1332.0First class patterns and pattern matching, using type families (bsd3, data, library, pattern)2018-06-10BrentYorgey, ReinerPope, shersh, vrom911
fit560.0FIT file decoder (bsd3, data, fitness, library, parsing)2016-03-04mgiles
fitsio160.0A library for reading and writing data files in the FITS data format. (data, library, physics)2008-12-31EricSessoms
fixed-length1410.0Lists with statically known length based on non-empty package. (bsd3, data, library)2019-01-05HenningThielemann
fixed-list220.0A fixed length list type (bsd3, data, library)2015-05-10JobVranish
fixed-point (deprecated)380.0Binary fixed-point arithmetic (data, deprecated, game, library, math, mit, numerical)2011-08-27JakeMcArthur
fixed-point-vector (deprecated)150.0Unbox instances for the fixed-point package (data, deprecated, game, library, math, mit, numerical)2011-08-27JakeMcArthur
fixed-point-vector-space (deprecated)180.0vector-space instances for the fixed-point package (data, deprecated, game, library, math, mit, numerical)2011-08-27JakeMcArthur
fixed-vector1810.0Generic vectors with statically known size. (bsd3, data, library)2018-09-02AlexeyKhudyakov
fixed-vector-binary630.0Binary instances for fixed-vector (bsd3, data, library)2018-10-06AlexeyKhudyakov
fixed-vector-cborg390.0Binary instances for fixed-vector (bsd3, data, library)2018-10-06AlexeyKhudyakov
fixed-vector-cereal610.0Cereal instances for fixed-vector (bsd3, data, library)2018-10-06AlexeyKhudyakov
fixed-vector-hetero1280.0Generic heterogeneous vectors (bsd3, data, library)2018-03-12AlexeyKhudyakov
fixedprec1180.0A fixed-precision real number type (bsd3, data, library, math)2018-11-06PeterSelinger
fixfile422.0File-backed recursive data structures. (data, lgpl, library)2017-01-07rev_null
fixpoint160.0Data types as fixpoints (bsd3, data, library)2008-10-14RomanLeshchinskiy
fixtime230.0Some fixes to the time package (bsd2, data, library)2014-11-03pharpend
flat772.25Principled and efficient bit-oriented binary serialization. (bsd3, data, library, parsing, serialization)2018-11-06PasqualinoAssini
flat-maybe120.0Strict Maybe without space and indirection overhead (bsd3, data, library)2015-11-11AndrasKovacs
flay740.0Work generically on your datatype without knowing its shape nor its contents. (bsd3, data, generics, library)2018-05-26RenzoCarbonara
flexible-time230.0simple extension of Data.UnixTime. (data, library, mit)2015-02-25tattsun
flexiwrap180.0Flexible wrappers (bsd3, data, library)2011-09-23IainAlexander
flexiwrap-smallcheck120.0SmallCheck (Serial) instances for flexiwrap (bsd3, data, library)2011-09-23IainAlexander
flight-igc200.0A parser for IGC files. (data, library, mpl, parsing)2018-09-11philderbeast
flight-kml210.0Parsing of pilot tracklogs dumped as KML. (data, flight, geography, gps, kml, library, mpl, parsing, xml)2018-09-11philderbeast
float-binstring190.0C99 printf "%a" style formatting and parsing (bsd3, data, library, numerical)2014-07-23AntonNikishaev
floating-bits210.0Conversions between floating and integral values. (bsd3, data, library)2015-06-18JonasScholl
fmlist2190.0FoldMap lists (bsd3, data, library)2018-01-07SjoerdVisscher
focus1400.0A general abstraction for manipulating elements of container data structures (containers, data, library, mit)2018-07-28NikitaVolkov
folds1972.0Beautiful Folding (bsd3, comonads, data, enumerator, library)2017-07-29EdwardKmett, EricMertens, ryanglscott
folds-common240.0A playground of common folds for folds (data, library, mit)2014-12-30jozefg
foscam-directory1150.0Foscam File format (bsd3, data, file, library)2016-11-26TonyMorris
foscam-filename320.0Foscam File format (bsd3, data, file, library, parsing)2015-11-19TonyMorris
foscam-sort520.0Foscam File format (bsd3, data, file, library, parsing, program)2016-11-26TonyMorris
fraction610.0Fractions (bsd3, data, library)2016-07-19WolfgangJeltsch
free-functors4130.0Free functors, adjoint to functors that forget class constraints. (bsd3, data, library, math)2018-09-24SjoerdVisscher
freq900.0Are you ready to get freaky? (data, library, mit, program)2018-06-05chessai
frontmatter640.0Parses frontmatter as used in Jekyll markdown files. (data, library, mit)2015-12-20yamadapc
fsmActions410.0Finite state machines and FSM actions (bsd3, data, library)2012-12-14AndyGimblett
fsnotify-conduit630.0Get filesystem notifications as a stream of events (conduit, data, library, mit)2018-06-04MichaelSnoyman
ftree680.0Depth-typed functor-based trees, both top-down and bottom-up (bsd3, data, library)2019-02-08ConalElliott
full-text-search380.0In-memory full text search engine (bsd3, data, library, search, text)2017-08-31DuncanCoutts, MikolajKonarski
functional-kmp140.0KMP implemented on haskell's built-in cons-cell-based lists. (bsd3, data, library)2015-11-12mniip
functor-classes-compat370.0Data.Functor.Classes instances for core packages (bsd3, data, library)2017-03-29phadej
functor-combo2520.0Functor combinators with tries & zippers (bsd3, data, library)2015-05-04ConalElliott
functor-infix792.0Infix operators for mapping over compositions of functors. Lots of them. (data, library, mit)2017-04-23vi
functor-monadic320.0Monad-style combinators for functors. (apache, data, library)2015-05-17jtapolczai, jtapolczai2
functor-utils650.0Collection of functor utilities, providing handy operators, like generalization of (.). (apache, data, library)2018-12-18danilo2, iamrecursion
fusion (deprecated in favor of streaming)220.0Effectful streaming library based on shortcut fusion techniques (bsd3, data, deprecated, library)2015-08-12JohnWiegley
fuzzyset680.0Fuzzy set for approximate string matching (bsd3, data, library)2018-11-28arbelos
game-tree130.0Searching game trees with alpha-beta pruning (data, library)2009-03-20ColinAdams
garfield60.0TBA (bsd3, data, library)2018-11-15chessai
gc582.0Poor Richard's Memory Manager (bsd3, data, library)2017-07-29EdwardKmett, EricMertens, ryanglscott
gdiff360.0Generic diff and patch (bsd3, data, library)2014-06-27AndresLoeh, EelcoLempsink
general-prelude (deprecated)230.0Prelude replacement using generalized type classes where possible (bsd3, control, data, deprecated, library)2012-12-18JohnWiegley
generic-accessors760.0stringly-named getters for generic data (bsd3, data, library)2018-06-28GregHorn
generic-aeson2380.0Derivation of Aeson instances using GHC generics. (bsd3, data, library)2017-04-23AdamBergmark, ErikHesselink
generic-binary180.0Generic Data.Binary derivation using GHC generics. (bsd3, data, generics, library)2011-11-12SebastiaanVisser
generic-monoid250.0Derive monoid instances for product types. (bsd3, data, library)2018-12-12lukec
generic-storable130.0Generic implementation of Storable (bsd3, data, library)2012-05-11HideyukiTanaka
generic-trie1052.0A map, where the keys may be complex structured data. (bsd3, data, library)2018-04-10EricMertens
generic-xmlpickler1040.0Generic generation of HXT XmlPickler instances using GHC Generics. (bsd3, data, library, xml)2016-02-29AdamBergmark, ErikHesselink
genericserialize120.0Serialization library using Data.Generics (bsd3, data, library)2008-03-16GwernBranwen
geo-uk490.0High precision conversion between GPS and UK Grid (bsd3, data, library)2016-11-18tolysz
geohash260.0Geohash latitudes and longitudes. (bsd3, data, library)2009-10-24MariusEriksen
geojson4490.0A thin GeoJSON Layer above the aeson library (bsd3, data, library)2018-10-06domdere, newmana
geojson-types300.0GeoJSON data types including JSON/BSON conversion. (bsd3, data, library)2016-05-16alios
ghc-compact470.0In memory storage of deeply evaluated data structure (bsd3, data, library)2017-07-23HerbertValerioRiedel
ghci-hexcalc540.0GHCi as a Hex Calculator interactive (bsd3, data, library)2018-10-06takenobut
ghcjs-promise270.0Bidirectional bidings to javascript's promise. (bsd3, data, library)2016-11-11AlejandroDuranPallares
ghost-buster280.0Existential type utilites (bsd3, data, library)2017-08-29lazersmoke
git-date740.0Bindings to the date parsing from Git. (data, gpl, library)2018-06-03StephenWeber
git-object (deprecated in favor of gitlib)270.0Git object and its parser (bsd3, data, deprecated, library)2012-01-20KazuYamamoto
global210.0Library enabling unique top-level declarations (bsd3, data, language, library, system)2014-12-02ByronJohnson
global-variables250.0Namespaced, global, and top-level mutable variables without unsafePerformIO. (bsd3, data, library, reflection)2012-03-03JeanMarieGaillourdet
gofer-prelude240.0The Gofer 2.30 standard prelude (bsd3, data, library)2011-05-09DonaldStewart
google-dictionary (deprecated)260.0Simple interface to the google.com/dictionary API (bsd3, data, deprecated, library)2014-01-23mitchellwrosen
google-mail-filters350.0Write GMail filters and output to importable XML (bsd3, data, library, web, xml)2016-03-31LiyangHu
googlepolyline252.0Google Polyline Encoder/Decoder (data, library, mit, text)2016-04-16lorne
gpcsets480.0Generalized Pitch Class Sets for Haskell. (bsd3, data, library)2009-05-14BruceMcCosa
gps3480.0For manipulating GPS coordinates and trails. (bsd3, data, library)2015-02-08ThomasDuBuisson
gps2htmlReport890.0GPS to HTML Summary Report (bsd3, data, library, program)2012-01-29RobStewart
gpx-conduit490.0Read GPX files using conduits (bsd3, data, library)2012-08-12RyanTrinkle, ThomasDuBuisson
grapefruit-records1340.0A record system for Functional Reactive Programming (bsd3, data, frp, library, reactivity)2017-04-06WolfgangJeltsch
graph150.0Class of graphs (bsd3, data, library)2018-06-27MatthewFarkasDyck
graph-core1070.0Fast, memory efficient and persistent graph implementation (data, library, mit)2016-02-04AlexanderThiemann, DavidLeuschner, StefanWehr
graph-utils870.0A simple wrapper & quasi quoter for fgl. (bsd3, data, data-structures, graphs, library)2010-06-29HiromiIshii
graphbuilder210.0A declarative, monadic graph construction language for small graphs (data, library, mit)2012-10-17JosephAbrahamson
graphene750.0A minimal Graph Theory library. (data, library, mit)2014-05-255outh
graphql-w-persistent742.0Haskell GraphQL query parser-interpreter-data processor. (data, database, development, graphs, language, library)2018-11-17jasonsychau
greplicate370.0Generalised replicate functions (data, library)2016-02-03TonyMorris
greskell1630.0Haskell binding for Gremlin graph query language (bsd3, data, library)2019-01-02debugito
greskell-core1190.0Haskell binding for Gremlin graph query language - core data types and tools (bsd3, data, library)2018-10-03debugito
group-with810.0Classify objects by key-generating function, like SQL GROUP BY (apache, data, library)2015-08-17ulikoehler
groupBy260.0Replacement definition of Data.List.GroupBy (data, library, mit)2018-01-30oisdk
grouped-list1760.0Grouped lists. Equal consecutive elements are grouped. (bsd3, data, library)2018-03-12DanielDiaz
groupoid (deprecated)230.0A Groupoid class (bsd3, data, deprecated, library)2009-09-27StephenTetley
groups2480.0Haskell 98 groups (algebra, bsd3, data, library, math)2017-11-22NathanVanDoorn
gstorable680.0Generic implementation of Storable (bsd3, data, library)2018-01-31
gtfs140.0The General Transit Feed Specification format (bsd3, data, library)2010-09-27KeeganMcAllister
gtfs-realtime400.0GTFS RealTime protobafs library (autogenerated from .proto file) (bsd3, data, library)2018-12-09CthulhuDen
hBDD170.0An abstraction layer for BDD libraries (data, library)2015-05-24PeterGammie
hBDD-CMUBDD130.0An FFI binding to CMU/Long's BDD library (data, library)2015-05-24PeterGammie
hBDD-CUDD190.0An FFI binding to the CUDD library (data, library)2015-05-24PeterGammie
hDFA200.0A simple library for representing and minimising DFAs. (bsd3, data, library)2012-06-15PeterGammie
hOpenPGP9660.0native Haskell implementation of OpenPGP (RFC4880) (codec, data, library, mit)2018-10-13ClintAdams
hadoop-formats280.0Read/write file formats commonly used by Hadoop. (apache, data, library)2014-10-16JacobStanley
hadoop-rpc370.0Use the Hadoop RPC interface from Haskell. (apache, data, library)2016-02-25ConradParker, JacobStanley
hadoop-tools540.0Fast command line tools for working with Hadoop. (apache, data, program)2016-02-25ConradParker, JacobStanley
halves350.0Split or combine data structures to and from halves, quarters, eighths (bsd3, data, library)2018-10-15puffnfresh
handa-data140.0This package is deprecated. It formerly contained Haskell utilities for data structures and data manipulation. (data, library, mit)2016-08-01BrianBush
handa-geodata230.0Geographic and Geometric Data (data, geography, geometry, library, mit, program)2014-04-27BrianBush
har620.0HAR spec in Haskell (bsd3, data, library)2017-04-27HaishengWu
has520.0Entity based records (bsd3, data, library)2010-12-12YusakuHashimoto
has-th150.0Template Haskell function for Has records. (bsd3, data, library)2010-11-22ChrisDone
hash782.0Hashing tools (bsd3, data, hash, library)2013-03-27EdwardKmett, EricMertens, ryanglscott
hash-tree210.0Merkle Hash Tree (bsd3, data, library)2017-10-18KazuYamamoto
hashable5921.75A class for types that can be converted to a hash value (bsd3, data, library)2018-03-07BryanOSullivan, HerbertValerioRiedel, JohanTibell, MilanStraka
hashable-extras (deprecated in favor of hashable)570.0Higher-rank Hashable (bsd3, data, deprecated, hash, library)2016-01-17EdwardKmett
hashable-generics590.0Automatically generates Hashable instances with GHC.Generics. (bsd3, data, library)2016-05-25ClarkGaebel
hashable-orphans270.0Provides instances missing from Hashable. (bsd3, data, library)2017-04-05davean
hashable-time1450.0Hashable instances for Data.Time (bsd3, data, library)2018-09-26alkar, davew
hashabler1280.0Principled, portable & extensible hashing of data and types, including an implementation of the FNV-1a and SipHash algorithms. (bsd3, data, library)2016-11-20BrandonSimmons
hashflare140.0A library for working with HashFlare.io contracts and hashrates (bsd2, data, library)2017-01-20nbrk
hashmap (deprecated in favor of unordered-containers)1392.0Persistent containers Map and Set based on hashing. (bsd3, data, deprecated, library)2018-01-03MilanStraka, ryanglscott
hashring130.0Efficient consistent hashing. (bsd3, data, library)2012-02-08MichaelCraig
hashtables5842.25Mutable hash tables in the ST monad (bsd3, data, library)2018-05-26GregoryCollins, mgmeier
hashtables-plus (deprecated)180.0Extensions for a "hashtables" library (data, data-structures, deprecated, library, mit)2014-04-29NikitaVolkov
haskell-modbus290.0A cereal-based parser for the Modbus protocol (bsd3, data, library, network, parsing)2014-04-15JasonHickner
haskell-qrencode310.0Haskell bindings for libqrencode. (bsd3, data, library)2013-01-17JamesSanders
haxparse250.0Readable HaxBall replays (data, library, mit, program)2013-09-18JoelTaylor
hbcd120.0Packed binary-coded decimal (BCD) serialization (data, library, mit)2012-06-20AndrewKay
hblock210.0A mutable vector that provides indexation on the datatype fields it stores (bsd3, data, library)2015-03-20HugoGomes
hdf5-lite340.0High-level bindings to the HDF5 "lite" interface (bsd3, data, library)2018-03-30ocramz
hebrew-time1230.0Hebrew dates and prayer times. (data, library, mit)2019-02-17MichaelSnoyman
hedn2040.0EDN parsing and encoding (bsd3, data, library)2019-02-18AlexanderBondarenko
here2730.0Here docs & interpolated strings via quasiquotation (bsd3, data, library)2018-03-01TaylorHedberg
hetero-dict290.0Fast heterogeneous data structures (data, library, mit)2016-06-03winterland
hetero-map190.0Pure heterogeneous maps. (bsd3, data, data-structures, library)2009-01-12LukePalmer
heterogeneous-list-literals180.0Allows the use of tuples as literals for Heterogeneous collections (bsd3, data, library)2018-07-08DavidMD
heterolist240.0A heterogeneous list type (data, library, mit)2017-03-09clinton
hex1110.0Convert strings into hexadecimal and back. (bsd3, data, library)2011-10-10TaruKarttunen
hexpat-pickle-generic (deprecated)390.0Picklers for de/serialising Generic data types to and from XML (bsd3, data, deprecated, library, xml)2013-10-28BrendanHay
hexquote150.0Hexadecimal ByteString literals, with placeholders that bind variables (bsd3, data, library)2011-09-14KeeganMcAllister
hexstring520.0Fast and safe representation of a hex string (data, library, mit)2015-04-21solatis
hgeos760.0Simple Haskell bindings to GEOS C API (data, geography, geometry, library, mit, text)2016-08-10rcook
hgrib270.0Unofficial bindings for GRIB API (data, gpl, library)2015-11-07mjakob
hierarchy1810.0Predicated traversal of generated trees (bsd3, data, library)2018-05-11JohnWiegley, dnadales
hinze-streams110.0Streams and Unique Fixed Points (bsd3, data, library)2009-05-03DonaldStewart
hips120.0an IPS patcher (bsd3, data, program)2011-03-29PatrickPalka
histogram-fill3990.0Library for histograms creation. (bsd3, data, library)2018-10-06AlexeyKhudyakov
histogram-fill-binary350.0Binary instances for histogram-fill package (bsd3, data, library)2017-02-19AlexeyKhudyakov
histogram-fill-cereal470.0Binary instances for histogram-fill package (bsd3, data, library)2017-02-19AlexeyKhudyakov
hjcase (deprecated)170.0Jcase library for Haskell (data, deprecated, library, mit)2015-05-09seagreen
hjsonpointer3650.0JSON Pointer library (data, library, mit)2018-09-30seagreen
hjsonschema (deprecated)6820.0JSON Schema library (data, deprecated, library, mit)2018-04-28seagreen
hlist231.25Heterogeneous list (bsd3, data, library)2018-01-25MatthewFarkasDyck
hmatrix-csv220.0CSV encoding and decoding for hmatrix. (bsd3, data, library)2015-04-08lyzrd
hmatrix-repa1030.0Adaptors for interoperability between hmatrix and repa (bsd3, data, library, math)2016-09-22VivianMcPhail
hmemdb790.0In-memory relational database (bsd3, data, database, library)2014-05-10MiguelMitrofanov
hmpfr3252.0Haskell binding to the MPFR library (bsd3, data, library, math)2018-01-16AlesBizjak, MichalKonecny
hnetcdf1170.0Haskell NetCDF library (bsd3, data, library, program)2019-02-06DominicSteinitz, IanRoss
hnix752.0Haskell implementation of the Nix language (bsd3, data, library, nix, system)2018-07-19JohnWiegley
hodatime220.0A fully featured date/time library based on Nodatime (bsd3, data, library, time)2017-09-15jason_j
hole160.0Higher kinded type removal (bsd3, data, library)2013-09-08ThomasEding
hoodle-types470.0Data types for programs for hoodle file format (bsd3, data, library)2016-07-25IanWooKim
hopenpgp-tools2330.0hOpenPGP-based command-line tools (agpl, codec, data, program)2019-01-19ClintAdams
horizon160.0Sunrise and sunset UTC approximations from latitude and longitude coordinates (bsd3, data, library)2015-02-26intractable
hreader-lens750.0Optics for hreader package (data, library, mit)2017-05-31dredozubov
hs-GeoIP370.0Haskell bindings to the MaxMind GeoIPCity database via the C library (bsd3, data, library)2013-03-15OzgunAtaman
hs-blake2160.0A cryptohash-inspired library for blake2 (bsd3, data, library)2014-04-30tsuraan
hs-excelx320.0HS-Excelx provides basic read-only access to Excel 2007 and 2010 documents in XLSX format. (bsd3, data, library)2013-01-28MarkBaran
hs-multiaddr462.0Multiaddr library (apache, data, library)2018-04-25CMCDragonkai
hs-php-session420.0PHP session and values serialization (bsd3, data, library)2014-10-25elblake
hs-pkg-config480.0Create pkg-config configuration files (bsd3, data, development, library)2014-12-24PeterTrsko
hschema270.0Describe schemas for your Haskell data types. (data, lgpl, library, schema)2018-11-14alonsodomin
hschema-aeson260.0Describe schemas for your Haskell data types. (data, json, lgpl, library, schema)2018-11-14alonsodomin
hschema-prettyprinter250.0Describe schemas for your Haskell data types. (data, lgpl, library, schema, text)2018-11-14alonsodomin
hschema-quickcheck230.0Describe schemas for your Haskell data types. (data, lgpl, library, schema, testing)2018-11-14alonsodomin
hset700.0Primitive list with elements of unique types. (bsd3, data, library)2015-10-29AlekseyUymanov
hsini1782.0ini configuration files (bsd3, configuration, data, library)2018-06-05MagnusTherning
hsndfile770.0Haskell bindings for libsndfile (data, lgpl, library, sound)2015-09-18StefanKersten
hsndfile-storablevector190.0Haskell bindings for libsndfile (Data.StorableVector interface) (data, library, sound)2011-11-21StefanKersten
hsndfile-vector230.0Haskell bindings for libsndfile (Data.Vector interface) (data, library, sound)2011-11-21StefanKersten
htlset (deprecated in favor of htssets)360.0Heterogenous Set (bsd3, data, deprecated, library)2019-01-02kelemzol
htoml840.0Parser for TOML files (bsd3, configuration, data, json, language, library, parser, text)2016-11-07cies
htoml-megaparsec3870.0Parser for TOML files (bsd3, configuration, data, language, library, text, toml)2018-10-08vmchale
htssets520.0Heterogenous Sets (bsd3, data, library)2019-01-03kelemzol
https-everywhere-rules460.0High-level access to HTTPS Everywhere rulesets. (data, library, mit)2014-08-24vi
https-everywhere-rules-raw210.0Low-level (i.e. XML) access to HTTPS Everywhere rulesets. (data, gpl, library)2014-08-24vi
httpspec160.0Specification of HTTP request/response generators and parsers (data, library, web)2010-10-05DavidLeuschner, StefanWehr
huffman200.0Pure Haskell implementation of the Huffman encoding algorithm (bsd3, compression, data, library)2012-02-28MaximeHenrion
hunt-searchengine370.0A search and indexing engine. (data, library, mit, text)2015-03-03alexbiehl
hunt-server220.0A search and indexing engine server. (data, mit, program, text)2015-03-01alexbiehl
hvect1150.0Simple strict heterogeneous lists (data, library, mit)2017-02-03AlexanderThiemann
hw-aeson440.0Convenience functions for Aeson (bsd3, data, json, library)2018-12-06haskellworks
hw-balancedparens1030.0Balanced parentheses (bit, bsd3, data, data-structures, library, succinct-data-structures)2018-08-06newhoggy, haskellworks, GeorgeWilson
hw-bits4382.0Bit manipulation (bit, bsd3, data, library)2018-12-03newhoggy, haskellworks, GeorgeWilson
hw-conduit1780.0Conduits for tokenizing streams. (conduit, data, library, mit)2018-10-04newhoggy, haskellworks, GeorgeWilson
hw-conduit-merges290.0Additional merges and joins for Conduit (bsd3, conduit, data, library)2018-09-28haskellworks
hw-dump130.0File Dump (bit, bsd3, data, library, program)2018-11-18haskellworks
hw-eliasfano250.0Elias-Fano (bsd3, conduit, data, library)2016-10-28haskellworks
hw-excess910.0Excess (bsd3, conduit, data, library)2018-07-16haskellworks
hw-int680.0Integers (bsd3, data, library)2017-08-26haskellworks
hw-json3372.0Memory efficient JSON parser (bsd3, data, library, program)2019-02-01newhoggy, haskellworks
hw-json-lens190.0Lens for hw-json (data, library, mit)2018-07-15haskellworks
hw-json-simd470.0SIMD-based JSON semi-indexer (bsd3, data, library, program)2019-01-30newhoggy, haskellworks
hw-mquery1370.0Monadic query DSL (bsd3, data, library, program)2019-02-05newhoggy, haskellworks
hw-packed-vector260.0Packed Vector (bsd3, data, library, vector)2016-10-28haskellworks
hw-parser1140.0Simple parser support (bsd3, data, library, parser)2018-07-14haskellworks
hw-prim3320.0Primitive functions and data types (bsd3, data, library)2018-11-25newhoggy, haskellworks, GeorgeWilson
hw-prim-bits760.0Primitive support for bit manipulation (bsd3, data, library, program)2017-09-08haskellworks
hw-rankselect2062.0Rank-select (bit, bsd3, data, data-structures, library, program, succinct-data-structures)2018-08-08newhoggy, haskellworks, GeorgeWilson
hw-rankselect-base1030.0Rank-select base (bsd3, data, library)2018-08-04newhoggy, haskellworks, GeorgeWilson
hw-simd1390.0SIMD library (bit, bsd3, data, library, simd)2018-11-13haskellworks
hw-streams1570.0Primitive functions and data types (bsd3, data, library)2018-12-31newhoggy, haskellworks
hw-string-parse900.0String parser (bit, bsd3, data, library)2017-08-26newhoggy, haskellworks, GeorgeWilson
hw-succinct810.0Succint datastructures (conduit, data, library, mit)2016-10-24newhoggy, haskellworks
hw-vector (deprecated in favor of hw-prim)220.0Vector type with convenient typeclass instances (bsd3, data, deprecated, library)2016-10-28haskellworks
hw-xml1062.0Conduits for tokenizing streams. (bsd3, data, data-structures, library, program, succinct-data-structures, xml)2018-12-30haskellworks
hwsl2620.0Hashing with SL2 (data, library, mit)2017-11-03srijs
hwsl2-bytevector150.0A hashed byte-vector based on algebraic hashes and finger trees (data, library, mit)2015-07-15srijs
hwsl2-reducers120.0Semigroup and Reducer instances for Data.Hash.SL2 (data, library, mit)2015-07-03srijs
hybrid-vectors570.0Hybrid vectors e.g. Mixed Boxed/Unboxed vectors (bsd3, data, library, vector)2018-01-18EdwardKmett, ryanglscott
idempotent210.0Idempotent monoids (data, library, mit)2014-08-18alynn
identifiers1140.0Numeric identifiers for values. (bsd3, data, library)2017-05-20awagner83
idna450.0Implements IDNA (RFC 3490). (bsd3, data, library, rfc, text)2014-01-06GeorgePollard
ieee754-parser (deprecated in favor of data-binary-ieee754)130.0 (data, deprecated, library)2009-04-11JohnMillikin
implicit-params200.0Named and unnamed implicit parameters with defaults. (bsd3, data, library)2013-12-23ShaneOBrien
impossible830.0Set of data and type definitions of impossible types. Impossible types are useful when declaring type classes / type families instances that should not be expanded by GHC until a specific type is provided in order to keep the types nice and readable. (apache, data, library)2018-12-18danilo2, iamrecursion
incremental210.0incremental update library (bsd3, data, library)2018-04-09FumiakiKinoshita
incremental-computing150.0Incremental computing (bsd3, data, library)2016-07-25WolfgangJeltsch
incremental-maps140.0Package for doing incremental computations on maps (bsd3, data, library)2016-05-25jelken
increments170.0type classes for incremental updates to data (bsd3, data, library)2015-01-07JohnLato
indexation4420.0Tools for entity indexation (data, library, mit)2018-10-08NikitaVolkov, IrinaArtemeva, OShev
indexed-list-literals1432.0Type safe indexed list literals (bsd3, data, library)2018-10-06DavidMD
indices320.0Multi-dimensional statically bounded indices. (data, library, mit)2014-12-30MikeLedger
infinite-search230.0Exhaustively searchable infinite sets. (algorithms, bsd3, data, library, monads, search)2009-01-09LukePalmer
inflist130.0An infinite list type and operations thereon. (bsd3, data, library)2012-02-05JamesFisher
ini3460.0Quick and easy configuration files in the INI format. (bsd3, configuration, data, library)2019-01-02ChrisDone, joehillen
ini-qq110.0Quasiquoter for INI (bsd3, configuration, data, library)2016-07-15kseo
initialize230.0Initialization and Deinitialization of 'Storable' values. (bsd3, data, library)2018-10-25chessai
inj190.0A class for injective (one-to-one) functions (data, library)2018-07-06int_index
inj-base190.0'Inj' instances for 'base' (bsd3, data, library)2018-07-13int_index
int-cast630.0Checked conversions between integral types (bsd3, data, library)2018-04-03HerbertValerioRiedel
intern3232.0Efficient hash-consing for arbitrary data types (bsd3, data, data-structures, library)2018-02-24EdwardKmett, ryanglscott
interpolate2612.0String interpolation done right (data, library, mit, text)2018-03-07SimonHengel
interpolatedstring-perl61972.5QuasiQuoter for Perl6-style multi-line interpolated strings (data, library, public-domain)2018-10-16AudreyTang
interpolatedstring-qq180.0QuasiQuoter for Ruby-style multi-line interpolated strings. (bsd3, data, library)2010-07-18ErikCharlebois
interpolatedstring-qq-mwotton (deprecated in favor of interpolatedstring-qq)160.0DO NOT USE THIS. interpolatedstring-qq works now. (bsd3, data, deprecated, library)2010-07-18MarkWotton
interpolator450.0Runtime interpolation of environment variables in records using profunctors (data, library, mit)2018-12-21dfithian
intset270.0Pure, mergeable, succinct Int sets. (bsd3, data, library)2013-12-07SamTruzjan
invariant4540.0Haskell98 invariant functors (bsd2, control, data, library)2018-07-15NicolasFrisby, ryanglscott
invertible1470.0bidirectional arrows, bijective functions, and invariant functors (bsd3, composition, control, data, library)2018-04-15DylanSimon
invertible-hlist210.0invertible functions and instances for HList (bsd3, composition, control, data, library)2017-03-07DylanSimon
io-storage980.0A key-value store in the IO monad. (bsd3, data, database, library, system)2009-08-06WillDonnelly
io-streams5152.5Simple, composable, and easy-to-use stream I/O (bsd3, data, io-streams, library, network)2019-01-28DougBeardsley, GregoryCollins
io-string-like370.0Classes to handle Prelude style IO functions for different datatypes (bsd3, data, library)2018-01-14clinton
ioctl270.0Type-safe I/O control package (data, library, mit, system)2010-02-20MaciejPiechotka
irc920.0A small library for parsing IRC messages. (bsd3, data, library, network)2014-12-16TrevorElliott
irc-fun-messages360.0Types and functions for working with the IRC protocol. (data, irc, library, network, public-domain)2016-09-05akrasner
irc-fun-types180.0Common types for IRC related packages (data, irc, library, network, public-domain)2016-09-05akrasner
ireal301.5Real numbers and intervals with relatively efficient exact arithmetic. (bsd3, data, library, math)2015-10-31sydow
is290.0Generic pattern predicates (bsd3, data, library)2018-11-19vlopez
isevaluated270.0Check whether a value has been evaluated (data, ghc, library, mit)2012-07-23BertramFelgenhauer, SveinOveAas
iso3166-country-codes1730.0A datatype for ISO 3166 country codes (data, library)2017-02-16JonFairbairn
iso639420.0ISO-639-1 language codes (bsd3, data, library)2015-01-25HugoGomes
iso8583-bitmaps440.0Parse and merge ISO 8583-style bitmaps (bsd3, data, library)2018-04-03IlyaPortnov
iso8601-duration210.0Types and parser for ISO8601 durations (bsd3, data, library)2018-06-23albertov
iterIO200.0Iteratee-based IO with pipe operators (bsd3, data, enumerator, library, system)2012-04-19AmitLevy, DavidMazieres, DanielBGiffin
iteratee2400.0Iteratee-based I/O (bsd3, data, library, system)2014-05-19JohnLato
iteratee-compress590.0Enumeratees for compressing and decompressing streams (bsd3, codec, data, library)2014-05-19JohnLato, MaciejPiechotka
iteratee-mtl (deprecated in favor of iteratee)260.0Iteratee-based I/O (bsd3, data, deprecated, library, system)2010-10-27JohnLato
iteratee-parsec400.0Package allowing parsec parser initeratee (data, library, mit, parsing)2010-11-28MaciejPiechotka
iteratee-stm200.0Concurrent iteratees using STM (bsd3, data, library)2012-04-10JohnLato
ix-shapable490.0Reshape multi-dimensional arrays. (bsd3, data, library)2009-05-18TracyWadleigh
javaclass110.0Java class files (data, library)2016-03-07TonyMorris
jinquantities172.0Unit conversion and manipulation library. (bsd3, data, library, math, physics, program)2018-09-12Novadiscovery
joinlist (deprecated)210.0Join list - symmetric list type (bsd3, data, deprecated, library)2010-02-14StephenTetley
json-alt310.0Union 'alternative' or Either that has untagged JSON encoding. (bsd3, data, library, tools)2018-11-28MichalGajda
json-autotype6832.25Automatic type declaration for JSON input data (bsd3, data, library, program, tools, type-provider)2018-12-05MichalGajda, PeterSimons
json-extra490.0Utility functions to extend Aeson (bsd2, data, library)2016-11-24TobiasDammers
json-incremental-decoder480.0Incremental JSON parser with early termination and a declarative DSL (data, json, library, mit, parsing)2017-04-07NikitaVolkov
json-pointer860.0JSON Pointer parsing and interpretation utilities (data, json, library, mit, parsing)2019-01-22NikitaVolkov
json-schema3210.0Types and type classes for defining JSON schemas. (bsd3, data, library)2018-07-07AdamBergmark, ErikHesselink
json-state180.0Keep program state in JSON files. (data, database, library, public-domain)2016-01-28akrasner
json-togo290.0Effectful parsing of JSON documents (data, library, mit)2015-06-27srijs
json2510.0Library provides support for JSON. (bsd3, data, json, library, text)2011-05-29YuriyIskra
json2-types140.0Defined JSON data types and function for renders JSON to string. (bsd3, data, json, library, text)2011-04-06YuriyIskra
jsons-to-schema250.0JSON to JSON Schema (data, json, library, mit, program, web)2017-07-30garetht
jsonschema-gen322.0JSON Schema generator from Algebraic data type (bsd3, data, json, library, text)2017-08-29yuga
judy1690.0Fast, scalable, mutable dynamic arrays, maps and hashes (bsd3, data, library)2018-04-16DonaldStewart, MarkWotton
jump120.0Nothing to see here, move along (data, library, mit)2016-03-14MichaelSnoyman
kafka50.0TBA (bsd3, data, library)2018-08-30chessai
kanji620.0Perform 漢字検定 (Japan Kanji Aptitude Test) level analysis on Japanese Kanji (bsd3, data, library, program)2018-05-14fosskers
karakuri210.0Good stateful automata (bsd3, data, library)2013-10-21FumiakiKinoshita
katip5150.0A structured logging framework. (bsd3, data, library, logging, text)2019-02-14MichaelXavier
katip-datadog270.0Datadog scribe for the Katip logging framework (bsd3, data, library, logging, text)2019-02-14MichaelXavier
katip-elasticsearch2950.0ElasticSearch scribe for the Katip logging framework. (bsd3, data, library, logging, text)2019-02-14MichaelXavier
katip-logzio300.0Logz.IO scribe for the Katip logging framework (bsd3, data, library, logging, text)2019-02-14MichaelXavier
katydid490.0A haskell implementation of Katydid (bsd3, data, library, program)2018-09-10awalterschulze
kd-tree140.0A simple k-d tree implementation (bsd3, data, library)2014-07-25BenGamari
kdt480.0Fast and flexible k-d trees for various types of point queries. (data, library, mit)2016-03-22giogadi
keyed230.0Generic indexing for many data structures (bsd3, data, library)2015-08-13wyager
keyword-args420.0Extract data from a keyword-args config file format (data, library, mit, program)2015-04-23jsl, stackbuilders, sestrella
kicad-data312.0Parser and writer for KiCad files. (data, library, mit)2018-01-04kasbah
kickchan170.0Kick Channels: bounded channels with non-blocking writes (bsd3, concurrency, data, library)2014-02-06JohnLato
kind-apply570.0Utilities to work with lists of types (bsd3, data, library)2018-12-10AlejandroSerrano
kind-generics880.0Generic programming in GHC style for arbitrary kinds and GADTs. (bsd3, data, library)2018-12-10AlejandroSerrano
kind-generics-th300.0Template Haskell support for generating `GenericK` instances (bsd3, data, library)2018-12-10AlejandroSerrano
kontra-config110.0JSON config file parsing based on unjson (bsd3, data, library)2016-09-21GracjanPolak, MikhailGlushenkov, jonathanjouty_scrive
lambda-sampler420.0Boltzmann sampler utilities for lambda calculus. (bsd3, data, library)2017-08-13mbendkowski
language-conf320.0Conf parsers and pretty-printers for the Haskell programming language. (data, library, mit)2016-08-24yamadapc
language-hcl150.0HCL parsers and pretty-printers for the Haskell programming language. (data, library, mit)2016-08-12yamadapc
largeword1150.0Provides Word128, Word192 and Word256 and a way of producing other large words if required. (bsd3, data, library)2015-12-13DominicSteinitz
layered-state660.0Control structure similar to Control.Monad.State, allowing multiple nested states, distinguishable by provided phantom types. (apache, data, library)2018-12-18danilo2, iamrecursion
layouting560.0General layouting library. Currently supports layouting 2D areas and can be used as a backend for text pretty printing or automatic windows layouting managers. (apache, data, library)2018-12-18danilo2, iamrecursion
lazy-hash220.0Identifiers for not-yet-computed values (data, gpl, library)2017-07-24leftaroundabout
lazy-hash-cache110.0Storing computed values for re-use when the same program runs again. (data, gpl, library)2017-07-24leftaroundabout
lazyarray290.0Efficient implementation of lazy monolithic arrays (lazy in indexes). (bsd3, data, library)2008-02-19MilanStraka
lazyset140.0Set and Map from lazy/infinite lists. (data, library, mit)2016-12-15carlos_freund
lens24902.75Lenses, Folds and Traversals (bsd2, data, generics, lenses, library)2018-07-03EdwardKmett, EricMertens, JohnWiegley, ryanglscott
lens-accelerate520.0Instances to mix lens with accelerate (bsd3, data, lenses, library)2018-04-04TrevorMcDonell
lens-action640.0Monadic Getters and Folds (bsd3, data, generics, lenses, library)2018-01-19EdwardKmett, EricMertens, ryanglscott
lens-datetime452.0Lenses for Data.Time.* types (bsd3, data, lenses, library)2016-04-29GergelyRisko, MihalyBarasz
lens-family2452.0Lens Families (bsd3, data, lenses, library)2018-09-27RussellOConnor
lens-family-core2810.0Haskell 98 Lens Families (bsd3, data, lenses, library)2018-09-27RussellOConnor
lens-family-th1130.0Generate lens-family style lenses (bsd3, data, library)2018-07-03DanBurton
lens-labels (deprecated in favor of proto-lens)1640.0Integration of lenses with OverloadedLabels. (bsd3, data, deprecated, library)2018-10-12JudahJacobson, gnezdo
lens-properties360.0QuickCheck properties for lens (bsd3, data, lenses, library)2018-01-09EdwardKmett, EricMertens, ryanglscott
lens-time130.0lens for Data.Time (data, library, mit)2013-08-14TatsuyaTouma
lens-utils1090.0Collection of missing lens utilities. (apache, data, library)2018-12-18danilo2, iamrecursion
lenses490.0Simple Functional Lenses (bsd3, data, library)2018-07-12JobVranish
lensref370.0References which can be joined and on which lenses can be applied (bsd3, control, data, library)2014-05-18PeterDivianszky
lenz1360.0Van Laarhoven lenses (bsd3, data, lenses, library)2018-02-13MatthewFarkasDyck
lenz-template230.0Van Laarhoven lens templates (data, lenses, library, template-haskell)2017-11-15MatthewFarkasDyck
lhae (deprecated)160.0Simple spreadsheet program (data, deprecated, program)2010-09-28AlexanderBau
lhe510.0Parser and writer for Les-Houches event files (data, library, mit, physics)2012-02-13ScottLawrence
libroman612.0Use Roman Numerals as a Numeric Datatype (sort of) (bsd3, data, library, math, numerical)2016-10-10ahakki
line-size200.0Display the number of bytes of each line (data, gpl, program)2017-03-27AlanHawkins
linear-accelerate1290.0Lifting linear vector spaces into Accelerate (algebra, bsd3, compilers-interpreters, concurrency, data, library, math, parallelism)2018-04-04EdwardKmett, TrevorMcDonell, ryanglscott
linear-maps220.0Finite maps for linear use (bsd3, data, library, program)2009-05-28PeterDivianszky, ZsoltDollenstein
link-relations170.0Use web link relation types (RFC 5988) in Haskell (data, library, public-domain, web)2016-01-28akrasner
linkedhashmap290.0Persistent LinkedHashMap data structure (bsd3, data, library)2015-02-07abasko
list-fusion-probe490.0testing list fusion for success (bsd3, data, library)2018-08-02JoachimBreitner
list-grouping (deprecated in favor of split)160.0Functions for grouping a list into sublists (bsd3, data, deprecated, library)2011-02-13BrandonSimmons
list-tries1000.0Tries and Patricia tries: finite sets and maps for list keys (bsd3, data, data-structures, library)2018-11-20MattiNiemenmaa
list-zip-def590.0Provides zips with default values. (data, library, public-domain)2018-12-19muesli4
list-zipper1370.0A list zipper (bsd3, data, library)2018-12-09qfpl
lists480.0Functions for dealing with lists (bsd3, data, library)2013-10-10ChrisDone
listsafe360.0Safe wrappers for partial list functions, supporting MonadThrow. (apache, data, library, list, safe)2015-05-13jtapolczai, jtapolczai2
literals140.0Non-overloaded functions for concrete literals. (data, library, mit)2013-03-30JulianFleischer
llrbtree270.0Purely functional sets and heaps (bsd3, data, library)2012-01-31KazuYamamoto
llvm-base-types150.0The base types for a mostly pure Haskell LLVM analysis library (bsd3, data, library)2013-11-12TristanRavitch
llvm-data-interop130.0A low-level data interoperability binding for LLVM (bsd3, data, library)2013-11-12TristanRavitch
lockfree-queue610.0Michael and Scott lock-free queues. (bsd3, concurrent, data, library)2015-02-06RyanNewton, ryanglscott, peter_fogg
log-utils200.0Utils for working with logs (bsd3, data, program)2017-07-21MikhailGlushenkov, arybczak, jonathanjouty_scrive
logfloat3810.0Log-domain floating point numbers (bsd3, data, library, math, natural-language-processing, statistics)2015-10-02WrenThornton
longboi210.0Dependently-typed linked list implementation (data, library, mit)2018-01-16chessai
lookup-tables260.0Statically generate lookup tables using Template Haskell. (data, library)2015-08-31JakeMcArthur
lrucache1952.0a simple, pure LRU cache (bsd3, data, library)2018-11-29CarlHowells
lub730.0information operators: least upper bound (lub) and greatest lower bound (glb) (bsd3, concurrency, data, library, other)2012-02-06ConalElliott
luhn160.0An implementation of Luhn's check digit algorithm. (bsd3, data, library)2009-12-20HenryBucklow
machines-attoparsec220.0Parse machines streams with attoparsec parsers. (bsd3, control, data, enumerator, library, parsing, text)2019-01-31davean
machines-encoding240.0Transcode encodings with machines. (bsd3, control, data, enumerator, library, text)2019-01-31davean
macho200.0Parser for Mach-O object format. (bsd3, data, library)2010-03-25ErikCharlebois
magma320.0magma is an algebraic structure consisting a set together with an binary operation. (algebra, bsd3, data, data-structures, library, math)2015-09-08KatsutoshiItoh
make-monofoldable-foldable200.0Make a MonoFoldable type into an ordinary Foldable type. (data, library, mit)2017-03-10clinton
markov110.0Simple interpreter for Markov's normal algorithms (bsd3, data, library)2010-06-14IlyaPortnov
markup3180.0Abstraction for HTML-embedded content (bsd3, data, library, web)2018-04-11athanclark
massiv2802.5Massiv (Массив) is an Array Library. (bsd3, data, data-structures, library)2019-01-23lehins
massiv-io992.0Import/export of Image files into massiv Arrays (bsd3, data, data-structures, library)2019-01-05lehins
matrices2390.0native matrix based on vector (bsd3, data, library)2018-12-21kaizhang
maybe-justify120.0Simple higher order function for Maybe (data, library, public-domain)2015-06-24taksuyu
mbox1072.0Read and write standard mailbox files. (bsd3, data, library, system, text)2017-08-16GershomBazerman
means110.0calculate varieties of mean/average using semigroup. (data, library, mit)2016-06-13winterland
mech120.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
mechs100.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
median-stream1110.0Constant-time queries for the median of a stream of numeric data. (bsd3, data, library)2016-11-24jmc41493
meep250.0A silly container (bsd2, data, library)2018-08-04DmitryMalikov, MatveyAksenov
memis210.0Memis Efficient Manual Image Sorting (data, mit, program)2017-02-01johannesgerer
memoize760.0A memoization library (bsd3, data, library)2016-09-03JesseTov
memorable-bits200.0Generate human memorable strings from binary data. (bsd2, data, library)2017-03-31lukec
messagepack1760.0Serialize instance for Message Pack Object (data, library, mit)2016-12-01rodrigosetti, saep
meta-misc140.0Utility library providing miscellaneous meta-programming utilities. (bsd3, data, generics, language, library, utility)2014-12-02ByronJohnson
metadata660.0metadata library for semantic web (bsd3, data, library, text, web)2016-03-25KatsutoshiItoh
metar430.0Australian METAR (aviation, bsd3, data, library, program)2018-10-26qfpl
metar-http690.0HTTP for METAR (aviation, bsd3, data, library, program)2019-02-07TonyMorris
metric340.0Metric spaces. (data, library, mit)2014-05-30vi
metrics1300.0High-performance application metric tracking (data, library, mit)2017-08-09IanDuncan
mgeneric180.0Generics with multiple parameters (data, library, mit)2015-03-21rbocquet
microlens9342.5A tiny lens library with no dependencies. If you're writing an app, you probably want microlens-platform, not this. (bsd3, data, lenses, library)2018-11-03Artyom
microlens-contra610.0True folds and getters for microlens (bsd3, data, lenses, library)2018-10-01Artyom
microlens-each (deprecated in favor of microlens)120.0'each' for microlens (bsd3, data, deprecated, lenses, library)2015-04-19Artyom
microlens-ghc5002.0microlens + array, bytestring, containers, transformers (bsd3, data, lenses, library)2018-11-03Artyom
microlens-mtl4520.0microlens support for Reader/Writer/State from mtl (bsd3, data, lenses, library)2018-01-13Artyom
microlens-platform5300.0Feature-complete microlens (bsd3, data, lenses, library)2018-11-04Artyom
microlens-th5750.0Automatic generation of record lenses for microlens (bsd3, data, lenses, library)2018-09-28Artyom
minilens362.0A minimalistic lens library, providing only the simplest, most basic lens functionality. (data, gpl, lens, library)2016-05-31RaminHonary
minlen110.0Express the minimum length of a container in its type (data, library, mit)2016-07-04MichaelSnoyman
minst-idx (deprecated in favor of mnist-idx)242.0Read and write IDX data that is used in e.g. the MINST database. (data, deprecated, gpl, library)2015-05-30muzzle
mlist (deprecated in favor of List)170.0Monadic List alternative to lazy I/O (bsd3, data, deprecated, library)2009-05-02EyalLotem
mnist-idx990.0Read and write IDX data that is used in e.g. the MNIST database. (data, lgpl, library)2017-03-27muzzle
model1110.0Derive a model of a data type using Generics (bsd3, data, generics, library, reflection)2017-12-11PasqualinoAssini
monad-branch390.0Monadic abstraction for computations that can be branched and run independently. (apache, data, library)2018-12-18danilo2, iamrecursion
monad-primitive170.0Type class for monad transformers stack with pirimitive base monad. (bsd3, data, library)2013-03-01AlexeyKhudyakov
monad-state180.0Utility library for monads, particularly those involving state. (bsd3, control, data, library, monads)2014-12-02ByronJohnson
monad-statevar110.0Concise, overloaded accessors for IORef, STRef, TVar (bsd3, data, library)2013-02-11JoeyAdams
monad-supply1110.0Stateful supply monad. (control, data, library, mit, monads)2018-04-03GeoffHulette
mono-foldable (deprecated in favor of mono-traversable)190.0Folds for monomorphic containers (bsd3, data, deprecated, library)2013-09-11JohnLato
mono-traversable13572.0Type classes for mapping, folding, and traversing monomorphic containers (data, library, mit)2019-02-02GregWeber, MichaelSnoyman
mono-traversable-instances690.0Extra typeclass instances for mono-traversable (data, library, mit)2016-07-04MichaelSnoyman
mono-traversable-keys420.0Type-classes for interacting with monomorphic containers with a key (bsd3, containers, data, data-structures, library)2019-01-30recursion_ninja
mono-traversable-wrapper320.0Wrapper providing Foldable instance for MonoFoldables. (data, library, mit)2017-02-26oisdk
monoid440.0Monoid type classes, designed in modular way, distinguish Monoid from Mempty and Semigroup. This design allows mempty operation don't bring Semigroups related constraints until (<>) is used. (apache, data, library)2018-12-18danilo2, iamrecursion
monoid-extras5180.0Various extra monoid-related definitions and utilities (bsd3, data, library)2018-05-14BrentYorgey, RyanYates, jeffreyrosenbluth, bergey
monoid-record110.0Support for modifying record fields of monoidal type (bsd3, data, library)2009-04-20RobinGreen
monoid-subclasses4642.0Subclasses of Monoid (algebra, bsd3, data, library, text)2018-10-05MarioBlazevic
monoid-transformer680.0Monoid counterparts to some ubiquitous monad transformers (bsd3, data, library)2018-02-16HenningThielemann
monoidal-containers2250.0Containers with monoidal accumulation (bsd3, data, library)2018-10-03BenGamari
monoidplus140.0Extra classes/functions about monoids (data, library, math, public-domain)2011-11-12AaronBlack
monoids (deprecated in favor of reducers)2860.0Deprecated: Use 'reducers' (bsd3, data, deprecated, library, math, numerical)2012-02-09DanielWagner, EdwardKmett
monomorphic (deprecated in favor of singletons)440.0Library to convert polymorphic datatypes to/from its monomorphic represetation (bsd3, data, deprecated, library)2015-05-19HiromiIshii
monus230.0a 'Monus' is a commutative monoid that allows a notion of substraction. (bsd3, data, library)2018-10-19chessai
morphisms350.0It's all about functions (control, data, library, mit)2019-01-04iokasimovmt
morphisms-functors580.0Functors, theirs compositions and transformations (control, data, library, mit)2019-01-15iokasimovmt
morphisms-functors-inventory140.0Inventory is state and store (control, data, library, mit)2019-01-12iokasimovmt
morphisms-objects770.0Algebraic structures (control, data, library, mit)2019-01-08iokasimovmt
mrm110.0Modular Refiable Matching, first-class matches (bsd3, data, library)2016-03-07suhorng
msgpack1020.0A Haskell implementation of MessagePack (bsd3, data, library)2015-04-04HideyukiTanaka
msgpack-aeson120.0Aeson adapter for MessagePack (bsd3, data, library)2015-04-04HideyukiTanaka
mtree140.0Tree with Meta and Content parameters (data, library, public-domain)2011-09-17RahulGopinath
multi-trie100.0Trie of sets, as a model for compound names having multiple values (data, library, mit)2016-11-07vadimvinnik
multihash230.0Multihash library and CLI executable (bsd3, data, library, program)2015-08-21LukeHoersten
multihashmap200.0hashmap from keys to hashsets (bsd3, data, library)2018-06-13chessai
multipart-names120.0Handling of multipart names in various casing styles (bsd3, data, library)2015-04-02nedervold
multirec-binary110.0Generic Data.Binary instances using MultiRec. (bsd3, data, generics, library)2009-05-25SebastiaanVisser
multivector200.0Vectors of packed tuples (bsd3, data, library)2018-05-05MatthewFarkasDyck
murmur-hash1620.0MurmurHash2 implementation for Haskell. (bsd3, data, digest, library)2016-05-01ThomasSchilling
murmur3440.0Pure Haskell implementation of the MurmurHash3 x86_32 algorithm. (data, hash, library, murmur, public-domain)2016-08-02PhilippeLaprade
murmurhash3120.032-bit non-cryptographic hashing (data, digest, library, public-domain)2011-06-22NisWegmann
mutable-containers2510.0Abstactions and concrete implementations of mutable containers (data, library, mit)2018-02-02MichaelSnoyman
mutable-iter (deprecated)290.0iteratees based upon mutable buffers (bsd3, data, deprecated, library)2011-04-30JohnLato
mwc-random-accelerate270.0Generate Accelerate arrays filled with high quality pseudorandom numbers (bsd3, data, library)2017-03-31TrevorMcDonell
n-ary-functor120.0An n-ary version of Functor (data, library, public-domain)2018-01-06gelisam
nagios-perfdata150.0Parse Nagios performance data. (bsd3, data, library)2015-01-25fractalcat
named-records420.0Flexible records with named fields. (data, library, mit, records)2013-05-26JulianFleischer
names310.0Type level names. (data, library, mit, type-system)2013-04-02JulianFleischer
namespace370.0A Generic Haskell library for managing namespaces (bsd3, data, library)2019-01-17xuhao
nat450.0Lazy binary natural numbers (bsd3, data, library, math)2012-08-13JanChristiansen
natural-number110.0Natural numbers tagged with a type-level representation of the number. (bsd3, data, library, type-system)2010-10-14GregoryCrosswhite
natural-numbers790.0Natural numbers (bsd3, data, library, math)2012-07-13WolfgangJeltsch
naturals130.0Constructors and related functions for natural numbers (bsd3, data, library)2011-08-09ChristopherHoward, infrared
nbt930.0A parser/serializer for Minecraft's Named Binary Tag (NBT) data format. (bsd3, data, library)2018-01-22AdamFoltzer
ndjson-conduit420.0Conduit-based parsing and serialization for newline delimited JSON. (data, library, mit)2016-09-15srijs
neither (deprecated in favor of either, monad-control)480.0Provide versions of Either with good monad and applicative instances. (deprecated) (bsd3, data, deprecated, library)2012-05-14MichaelSnoyman
nested-sequence140.0List-like data structures with O(log(n)) random access (bsd3, data, data-structures, library)2016-07-09BalazsKomuves
nestedmap180.0A library for nested maps (bsd3, data, library)2015-06-09kirstin
network-address170.0IP data structures and textual representation (data, library, mit, network)2011-09-07SebastianNowicki
network-conduit (deprecated in favor of conduit-extra)1710.0Stream socket data using conduits. (deprecated) (bsd3, conduit, data, deprecated, library, network)2014-04-02MichaelSnoyman
network-data460.0Library for network data structures and their serialization. (bsd3, data, library, network)2015-05-18ThomasDuBuisson
network-enumerator (deprecated)440.0Enumerators for network sockets (data, deprecated, enumerator, library, mit)2012-11-25JohnMillikin
network-msgpack-rpc410.0A MessagePack-RPC Implementation (bsd3, data, library)2018-07-20iphydf
network-stream110.0ByteString and Text streams for networking (data, gpl, library)2011-11-08JaredHance
nextstep-plist140.0NextStep style plist parser and printer (bsd3, data, library, parsing)2012-09-30JanChristiansen
nf780.0NF data type to statically enforce normal form (bsd3, data, library)2015-05-02EdwardYang
ngrams-loader140.0Ngrams loader based on http://www.ngrams.info format (data, library, mit, program)2014-03-25YorickLaupa
niagra1192.0High performance CSS EDSL (data, library, mit)2017-04-12natesymer
non-empty1100.0List-like structures with static restrictions on the number of elements (bsd3, data, library)2019-01-19HenningThielemann
non-empty-sequence290.0Non-empty sequence (bsd3, data, library)2016-07-31OmariNorman
non-empty-text320.0Non empty Data.Text type (data, library, nonempty, text)2018-02-16acatton
non-empty-zipper1282.0The Zipper for NonEmpty (bsd3, data, library)2018-06-07fresheyeball
nonempty-alternative140.0NonEmpty for Alternative types (bsd3, data, library)2016-03-16guaraqe
normalization-insensitive230.0Normalization insensitive string comparison (bsd3, data, library, text, unicode)2017-08-03harendra, ppelleti
notzero470.0A data type for representing numeric values, except zero. (bsd3, data, library, numeric)2018-05-31TonyMorris, qfpl
ntype130.0N-ary sum/product types (bsd3, data, library)2018-08-27int_index
num-non-negative420.0Non-negative numbers (data, library)2019-01-26int_index
number-length600.0Number of digits in a number in decimal and hexadecimal representation. (bsd3, data, library)2018-04-15PeterTrsko
numbered-semigroups210.0A sequence of semigroups, for composing stuff in multiple spatial directions. (data, lgpl, library)2017-10-27leftaroundabout
numbering160.0Combinators for creating bijections from some type to the natural numbers. (bsd3, data, library)2012-03-10DanielSchuessler
numbers2842.0Various number types (bsd3, data, library, math)2018-05-14CarterSchonwald, DanBurton, DanielWagner, JohnWiegley, LennartAugustsson, RichardSmith, RussellOConnor
objectid110.0Rather unique identifier for things that need to be stored (bsd3, data, library)2014-10-05tsuraan
observable-sharing362.0Simple observable sharing (bsd3, data, library)2015-10-13mararon
oi590.0Library for purely functional lazy interactions with the outer world. (bsd3, data, library, program)2016-03-27NobuoYamashita
once420.0memoization for IO actions and functions (data, gpl, library)2018-12-01DmitryBogatov, KAction
oneOfN150.0Anonymous coproduct type (data, library, public-domain)2011-08-10JamesCook
oneormore210.0A never-empty list type. (data, library, mit)2014-08-04thinkpad20
onpartitions210.0partition lenses (bsd3, data, library)2017-07-05PaoloVeronelli
oo-prototypes380.0Support for OO-like prototypes (data, gpl, library)2014-08-25DmitryIvanov, MateuszKowalczyk
open-adt140.0Open algebraic data types. (bsd3, data, library)2018-11-25Woehr
open-adt-tutorial140.0Open algebraic data type examples. (bsd3, data, library, program)2018-11-25Woehr
open-union820.0Extensible, type-safe unions. (data, library, mit, program)2018-04-20BenFoppa
open-witness820.0open witnesses (bsd3, data, library)2017-08-02AshleyYakeley
opench-meteo260.0A Haskell implementation of the Swiss Meteo Net data API (bsd3, data, library)2017-12-29RolandSenn
openexchangerates120.0Fetch exchange rates from OpenExchangeRates.org (data, library)2013-09-07StephenWeber
openpgp1060.0Implementation of the OpenPGP message format (data, library)2013-08-10StephenWeber
openpgp-asciiarmor720.0OpenPGP (RFC4880) ASCII Armor codec (codec, data, library)2018-03-30ClintAdams
optimal-blocks140.0Optimal Block boundary determination for rsync-like behaviours (bsd3, data, library, program)2015-04-07tsuraan
option120.0A strict version of Maybe (data, library, mit)2016-01-02georgerogers42
optional-args1430.0Optional function arguments (bsd3, data, library)2018-02-14GabrielGonzalez
ord-adhoc120.0Creating Ord instances instantly (bsd3, data, library)2013-02-01FumiakiKinoshita
order-maintenance290.0Algorithms for the order maintenance problem with a safe interface (bsd3, data, library)2017-01-06WolfgangJeltsch
order-statistic-tree570.0Order statistic trees based on weight-balanced trees (bsd3, data, library)2018-11-02MZiatdinov
ordered-containers460.0Set- and Map-like types that remember the order elements were inserted (bsd3, data, library)2018-11-01DanielWagner
orders110.0basic orders (bsd3, data, library)2013-08-02DavidDarais
orgmode130.0Org Mode library for haskell (bsd3, data, library)2015-09-16lally
orgmode-parse2680.0A collection of Attoparsec combinators for parsing org-mode flavored documents. (bsd3, data, library)2018-10-31ParnellSpringmeyer
origami260.0An un-SYB framework for transforming heterogenous data through folds (bsd3, data, library)2015-10-24nedervold
osm-conduit110.0Parse and operate on OSM data in efficient way (bsd3, data, geography, library)2016-03-05przembot
osx-ar160.0Parser for OS X static archive format. (bsd3, data, library)2010-03-25ErikCharlebois
overloaded-records292.0Overloaded Records based on current GHC proposal. (bsd3, data, library)2016-08-17PeterTrsko
pack110.0Bidirectional fast ByteString packer/unpacker (bsd3, data, library)2015-02-25capsjac
packed-dawg390.0Generation and traversal of highly compressed directed acyclic word graphs. (bsd3, data, library)2015-10-28AndrasKovacs
packed-multikey-map120.0Efficient “spreadsheet table” like maps with multiple marginals (data, gpl, library)2017-09-29leftaroundabout
packer470.0Fast byte serializer and unserializer (bsd3, data, library)2015-10-13VincentHanquez
packer-messagepack330.0MessagePack Serialization an Deserialization for Packer (bsd3, data, library)2017-10-22mtesseract
packman460.0Serialization library for GHC (bsd3, data, ghc, library, serialization)2018-01-19JostBerthold
pager290.0Open up a pager, like 'less' or 'more' (bsd2, data, library, program, system, text)2015-05-16pharpend
pagination720.0Framework-agnostic pagination boilerplate (bsd3, data, library)2017-07-31mrkkrp
palette1180.0Utilities for choosing and creating color schemes. (bsd3, data, library)2018-05-08BrentYorgey, jeffreyrosenbluth, bergey
pandora1510.0A box of patterns and paradigms (control, data, library, mit)2019-02-15iokasimovmt
parameterized-data300.0Parameterized data library implementing lightweight dependent types (bsd3, data, library)2016-07-08AlfonsoAcosta, HoseinAttarzadeh, ugeorge
parsergen320.0TH parser generator for splitting bytestring into fixed-width fields (bsd3, data, library)2014-11-20AkioTakano, JasperVanDerJeugt, JohnLato, MichaelBaikov
parsestar140.0NMR-STAR file format parser. (bsd3, data, library, program)2014-11-03MichalGajda
partial-order340.0Provides typeclass suitable for types admitting a partial order (bsd3, data, library)2017-06-10mtesseract
patch-combinators220.0A library for patching functions and data structures (bsd3, data, library)2013-10-29EmilAxelsson
patches-vector1790.0Patches (diffs) on vectors: composable, mergeable, and invertible. (bsd3, data, library)2016-11-29LiamOConnorDavis
pattern-trie190.0Pattern tries (data, library, mpl)2018-08-02romanb
peano440.0Peano numbers (data, library, math)2015-03-27MatthewFarkasDyck
peano-inf400.0Lazy Peano numbers including observable infinity value. (bsd3, data, library)2008-12-05PeterDivianszky
pecoff200.0Parser for PE/COFF format. (bsd3, data, library)2010-03-25ErikCharlebois
pedestrian-dag200.0A pedestrian implementation of directed acyclic graphs (bsd3, data, data-structures, library)2018-09-19JakubWaszczuk
pem4670.0Privacy Enhanced Mail (PEM) format reader and writer. (bsd3, data, library)2018-03-02VincentHanquez
peparser220.0A parser for PE object files. (bsd3, data, library)2011-09-29IanGraves
perfecthash100.0A perfect hashing library for mapping bytestrings to values. (bsd3, data, data-structures, library)2016-05-02MarkWotton
perhaps192.0Perhaps, a monad (bsd2, data, library)2018-04-24EdwardKmett
persist680.0Minimal serialization library with focus on performance (bsd3, data, library, parsing)2019-01-05minad
persistent-equivalence210.0Persistent equivalence relations (aka union-find) (bsd3, data, library)2011-10-01ChrisSmith
persistent-refs280.0Haskell references backed by an IntMap for persistence and reversibility. (bsd3, data, library)2015-04-14AdamFoltzer
persistent-vector202.0A persistent sequence based on array mapped tries (bsd3, data, library)2015-04-22TristanRavitch
pez260.0A Pretty Extraordinary Zipper library (bsd3, data, library)2012-01-28BrandonSimmons
pgp-wordlist420.0Translate between binary data and a human-readable collection of words. (bsd3, data, library, serialization)2016-12-15quchen
phasechange110.0Freezing, thawing, and copy elision (bsd3, data, library)2012-06-30GaborLehel
phash840.0Haskell bindings to pHash, the open source perceptual hash library (data, gpl, library)2017-03-23MichaelXavier
phone-metadata (deprecated)270.0Phonenumber Metadata - NOTE: this is now deprecated! (data, deprecated, library)2016-06-23vijayanant, raghuugare
phone-numbers1040.0Haskell bindings to the libphonenumber library (bsd3, data, library)2017-08-01ChristianMarie
pipes-files230.0Fast traversal of directory trees using pipes (bsd3, data, library)2018-07-23JohnWiegley, dnadales
pipes-interleave440.0Interleave and merge streams of elements (bsd3, data, library)2018-08-05BenGamari
pkcs10450.0PKCS#10 library (apache, data, library)2016-11-02ktimothy
pktree140.0Implementation of the PKTree spatial index data structure (data, library)2012-04-10StephenWeber
plailude382.0plaimi's prelude (data, gpl, library)2015-03-13alexander
planar-graph120.0A representation of planar graphs (bsd3, data, graphs, library, maths)2012-04-27IvanMiljenovic
plur440.0Plurality monad: Zero, one, or at least two. (bsd3, data, library)2019-02-12joelb
point-octree120.0Point octree, with bounding boxes (bsd3, data, library)2016-07-04MichaelLitchard
pointed2950.0Pointed and copointed data (bsd3, data, library)2018-01-22EdwardKmett, EricMertens, ryanglscott
pointedlist1140.0A zipper-like comonad which works as a list, tracking a position. (bsd3, data, library)2014-04-26JeffWheeler, RussellOConnor, fread2281
poly-arity1220.0Tools for working with functions of undetermined arity (bsd3, data, functions, library)2017-03-19athanclark
poly-control110.0This package provides abstraction for polymorphic controls, like PolyMonads or PolyApplicatives. (apache, data, library)2016-01-30danilo2, iamrecursion
polyToMonoid110.0Polyvariadic functions mapping to a given monoid (bsd3, data, library)2010-10-14KevinJardine
polydata450.0Wrap together data and it's constraints. (data, library, mit)2017-10-16clinton
polymap162.0Polygonal maps (data, library, public-domain)2015-09-24Shockk
polytypeable120.0Typeable for polymorphic types. (bsd3, data, library)2009-04-08LennartAugustsson
polytypeable-utils130.0Utilities for polytypeable. (bsd3, data, library)2009-10-21KiYungAhn
polyvariadic582.0Creation and application of polyvariadic functions (bsd3, data, library)2017-12-19fgaz
pool (deprecated in favor of resource-pool)500.0Thread-safe resource pools. (deprecated) (bsd3, data, database, deprecated, library, yesod)2012-01-25MichaelSnoyman
possible1030.0Three valued Data.Maybe (bsd3, data, library)2019-02-17tolysz
postgresql-copy-escape130.0Format data to feed to a PostgreSQL COPY FROM statement (bsd3, data, library)2012-08-27JoeyAdams
pred-set200.0Simple cached predicates (bsd3, data, library)2016-04-26athanclark
pred-trie1120.0Predicative tries (bsd3, data, library)2018-11-20athanclark
predicate-class200.0Helper class for passing context along a predicate value (data, library, mit)2018-03-23HeliWang
predictive140.0Predict the future, backtrack on failure (bsd3, data, library)2016-08-22esz
prednote930.0Evaluate and display trees of predicates (bsd3, data, library)2015-09-10OmariNorman
prednote-test (deprecated in favor of prednote)260.0Tests and QuickCheck generators to accompany prednote. (bsd3, data, deprecated, library, program)2015-01-02OmariNorman
prefix-units360.0A basic library for SI/binary prefix units (bsd3, data, library)2015-11-22IustinPop
prelude-plus260.0Prelude for rest of us (bsd3, control, data, system)2009-10-14YusakuHashimoto
pretty-hex450.0A library for hex dumps of ByteStrings (bsd3, data, library)2012-06-08IavorDiatchki
pretty-tree170.0Pretty-print trees (bsd3, data, library)2012-10-26IvanMiljenovic
preview200.0The method of previewing data (instead of wholly show-ing it) (bsd3, data, library)2017-08-06AlexanderThiemann
prim-instances170.0prim typeclass instances (bsd3, data, library)2018-08-20chessai
prim-uniq800.0Opaque unique identifiers in primitive state monads (data, dependent-types, library, public-domain)2011-08-10JamesCook, RyanTrinkle
primitive6152.0Primitive memory-related operations (bsd3, data, library)2018-05-30CarterSchonwald, DanDoel, HerbertValerioRiedel
primitive-simd142.0SIMD data types and functions (bsd3, data, library)2016-02-01JonasScholl
priority-queue260.0Simple implementation of a priority queue. (bsd3, data, library)2010-10-20JamesCook
procrastinating-structure (deprecated)160.0Pure structures that can be incrementally created in impure code (data, deprecated, library)2009-06-15JakeMcArthur
procrastinating-variable170.0Haskell values that cannot be evaluated immediately. (bsd3, data, library)2009-06-08GregoryCrosswhite
product-isomorphic530.0Weaken applicative functor on products (bsd3, data, library)2018-08-26KeiHibino
proj4-hs-bindings120.0Haskell bindings for the Proj4 C dynamic library. (data, library)2013-09-22PavelPenev
property-list550.0Apple property list parser (data, library, parsing, public-domain, xml)2015-06-19JamesCook
proto-lens4010.0A lens-based implementation of protocol buffers in Haskell. (bsd3, data, library)2019-02-05JudahJacobson, gnezdo
proto-lens-arbitrary2170.0Arbitrary instances for proto-lens. (bsd3, data, library)2019-02-05JudahJacobson, gnezdo
proto-lens-combinators (deprecated in favor of proto-lens)1660.0Utilities functions to proto-lens. (bsd3, data, deprecated, library)2018-10-12JudahJacobson, gnezdo
proto-lens-descriptors (deprecated in favor of proto-lens)850.0Protocol buffers for describing the definitions of messages. (bsd3, data, deprecated, library)2017-07-31JudahJacobson, gnezdo
proto-lens-optparse2630.0Adapting proto-lens to optparse-applicative ReadMs. (bsd3, data, library)2019-02-05JudahJacobson, gnezdo
proto-lens-protobuf-types2050.0Basic protocol buffer message types. (bsd3, data, library)2019-02-05JudahJacobson
proto-lens-protoc3670.0Protocol buffer compiler for the proto-lens library. (bsd3, data, library, program)2019-02-05JudahJacobson, gnezdo
protobuf1850.0Google Protocol Buffers via GHC.Generics (bsd3, data, library)2018-05-22NathanHowell
protobuf-native140.0Protocol Buffers via C++ (bsd3, data, library, program)2014-10-16MaxwellSwadling
protobuf-simple430.0Simple Protocol Buffers library (proto2) (data, library, mit, program)2018-09-05mrijkeboer
proxied1290.0Make functions consume Proxy instead of undefined (bsd3, data, library)2019-02-20ryanglscott
proxy200.0proxy helpers (data, library, mit)2018-05-16chessai
proxy-kindness110.0A library for kind-polymorphic manipulation and inspection of Proxy values (bsd3, data, library)2013-11-15BrandonSimmons
proxy-mapping350.0Mapping of Proxy Types (bsd3, data, library)2017-12-04DanielVanDenEijkel
pseudo-boolean440.0Reading/Writing OPB/WBO files used in pseudo boolean competition (bsd3, constraints, data, library, logic, optimisation, optimization)2018-11-25MasahiroSakai
ptr540.0Abstractions for operations on pointers (data, library, mit, ptr)2018-08-09NikitaVolkov
publicsuffix1450.0The publicsuffix list exposed as proper Haskell types (data, library, mit)2019-01-15wereHamster
pure-priority-queue230.0A pure priority queue. (bsd3, data, library)2009-12-13BradLarsen
pure-priority-queue-tests110.0Tests for the pure-priority-queue package (bsd3, data, program)2009-10-12BradLarsen
pureMD51790.0A Haskell-only implementation of the MD5 digest (hash) algorithm. (bsd3, cryptography, data, library)2016-05-09ThomasDuBuisson
purebred-email310.0types and parser for email messages (including MIME) (agpl, data, email, library)2018-12-23frasertweedale
qm-interpolated-string820.0Implementation of interpolated multiline strings (data, interpolated, interpolation, library, public-domain)2018-02-04unclechu
qr-imager3140.0Library to generate images. (bsd3, data, image, library, qr)2018-09-25vmchale
qr-repa120.0Library to generate QR codes from bytestrings and objects and scale image files (bsd3, data, library, program)2016-12-15
quadratic-irrational810.0An implementation of quadratic irrationals (algorithms, data, library, math, mit)2018-08-29ion, Bodigrim
quandl-api170.0Quandl.com API library (api, bsd3, data, library, web)2015-05-18PeterVanDenBrand
quantities520.0Unit conversion and manipulation library. (bsd3, data, library, math, physics, program)2015-11-07jdreaver
querystring-pickle280.0Picklers for de/serialising Generic data types to and from query strings (data, library, network, web)2014-06-23BrendanHay
queue (deprecated)220.0Abstraction typeclasses for queue-like things. (bsd3, data, deprecated, library)2010-10-18JamesCook
quick-schema130.0Slimmed down json schema language and validator (data, json, library, mit)2015-11-03benweitzman
quickset90.0Very fast and memory-compact query-only set and map structures (bsd3, data, data-structures, library)2012-11-14ErtugrulSoeylemez, esz
raft160.0Miscellaneous Haskell utilities for data structures and data manipulation. (data, library, mit)2017-01-07BrianBush
rakhana260.0Stream based PDF library (bsd3, data, library)2014-09-29YorickLaupa
random-extras410.0Additional functions for random values. (bsd3, data, library, math)2012-07-10AristidBreitkreuz
random-string240.0Generate a random base 16, 58, or 64 string (bsd3, data, library)2018-03-08ThomasDuBuisson
range400.0An efficient and versatile range library. (data, library, mit)2018-09-10RobertMassaioli, srijs
range-set-list1610.0Memory efficient sets with ranges of elements. (data, library, mit)2018-05-21phadej
ranges (deprecated)410.0Ranges and various functions on them. (bsd3, data, deprecated, library)2011-09-01GeorgePollard
rank1dynamic830.0Like Data.Dynamic/Data.Typeable but with support for rank-1 polymorphic types (bsd3, data, library)2017-08-22EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
rank2classes1890.0standard type constructor class hierarchy, only with methods of rank 2 types (bsd3, control, data, generics, library)2019-01-27MarioBlazevic
rcu310.0Read-Copy-Update for Haskell (bsd3, data, library, program)2018-08-02EdwardKmett, EricMertens, ryanglscott
rdf502.0Representation and Incremental Processing of RDF Data (data, library, mit)2017-08-17TravisWhitaker
record-aeson140.0Instances of "aeson" classes for the "record" types (data, json, library, mit, records)2015-11-06NikitaVolkov
record-encode420.0Generic encoding of records (bsd3, data, data-mining, data-science, library, machine-learning)2019-01-23ocramz
records300.0A flexible record system (bsd3, data, library, records)2012-01-15WolfgangJeltsch
records-th140.0Template Haskell declarations for the records package (data, library, mit)2012-08-01SamAnklesaria
red-black-record280.0Extensible records and variants indexed by a type-level Red-Black tree. (bsd3, data, library)2019-01-23DanielDiazCarrete
redis-resp300.0REdis Serialization Protocol (RESP) implementation. (data, library, mpl)2018-08-30ToralfWittner, romanb
reducers2340.0Semigroups, specialized containers and a general map/reduce framework (bsd3, data, library, math, numerical, semigroups)2018-07-03EdwardKmett, EricMertens, ryanglscott
reedsolomon280.0Reed-Solomon Erasure Coding in Haskell (data, library, mit)2017-01-13NicolasTrangez
ref140.0Generic Mutable Ref Abstraction Layer (bsd3, data, library)2013-03-31AndySonnenburg, CarterSchonwald
refcount160.0Container with element counts (data, library, mit)2014-06-08BenFoppa
reference120.0A class for references in Haskell (control, data, library, mit)2010-09-06MaciejPiechotka
refined1522.25Refinement types with static and runtime checking (data, library, mit)2018-09-26NikitaVolkov, chessai
reflection8802.25Reifies arbitrary terms into types that can be reflected back into terms (bsd3, data, dependent-types, library, reflection)2018-07-03EdwardKmett, ryanglscott
reflection-extras180.0Utilities for the reflection package (bsd3, data, library)2013-12-31EdwardKmett, JonathanFischoff
reflection-without-remorse210.0Efficient free and operational monads. (bsd3, data, data-structures, library)2014-12-30AtzeVanDerPloeg
regex-easy140.0sugar for regex-pcre (bsd3, data, library)2014-03-05MatthiasFischmann
regex-type120.0Type-level regular expressions (bsd3, data, library)2016-04-01kcsongor
regexp-tries120.0Regular Expressions on Tries. (bsd3, data, library)2012-02-08AndreasBaldeau
regular-xmlpickler (deprecated in favor of generic-xmlpickler)210.0Generic generation of HXT XmlPickler instances using Regular. (bsd3, data, deprecated, library, xml)2014-04-04AdamBergmark, ErikHesselink
rei1642.0Process lists easily (data, mit, program)2016-12-04kerkomen
reify150.0Serialize data (data, library, program)2009-01-19GwernBranwen
reinterpret-cast550.0Memory reinterpretation casts for Float/Double and Word32/Word64 (data, library, mit)2014-04-30NiklasHambuechen
relapse880.0Sensible RLP encoding (data, library, mit)2017-03-21iostat
relative-date120.0Durations and generalized time parsing (bsd3, data, library)2010-04-02SamAnklesaria
relevant-time200.0humanised relevant time (bsd3, data, library)2018-03-21chessai
reord120.0Ad-hoc Ord instances (data, library, public-domain)2008-10-22JamesCook
reorderable130.0Define compound types that do not depend on member order. (data, library, type-system)2013-11-15AlexCole
repa-linear-algebra180.0HMatrix operations for Repa. (bsd3, data, library)2016-03-01mjmrotek
resource-pool3592.25A high-performance striped resource pooling implementation (bsd3, data, database, library, network)2014-12-16BasVanDijk, BryanOSullivan
resource-pool-catchio270.0Fork of resource-pool, with a MonadCatchIO constraint (bsd3, data, database, library, network)2012-03-08JurrienStutterheim
resourcet11910.0Deterministic allocation and freeing of scarce resources. (bsd3, conduit, data, library)2018-10-08MichaelSnoyman
restricted-workers120.0Running worker processes under system resource restrictions (bsd3, concurrency, data, library, system)2013-08-26DaniilFrumin
result410.0Encode success or at least one error (data, library, mit)2016-10-02srijs
reverse-arguments210.0Reverse the arguments of arbitrary functions. (bsd3, data, library)2016-03-25JonasScholl
reverse-geocoding1430.0Simple reverse geocoding using OpenStreeMap (bsd3, data, library)2017-02-13jcristovao
riff180.0RIFF parser for Haskell (data, library, mit, program)2015-04-24RobertMassaioli
ring-buffer742.0A concurrent, mutable ring-buffer (bsd3, data, library)2017-10-07BenGamari
ripple-federation150.0Utilities and types to work with the Ripple federation protocol (data, library)2014-12-29StephenWeber
rivers110.0Rivers are like Streams, but different. (bsd3, comonads, data, library, math)2011-12-04DrewDay
rng-utils550.0RNG within an IORef for convenient concurrent use (bsd3, data, library, random)2017-10-20DougBeardsley, MichaelXavier, OzgunAtaman
roc-cluster210.0ROC online clustering algorithm (bsd3, data, library)2017-05-17NCrashed
roles310.0Composable class-based roles (bsd3, data, library)2017-10-16mnoonan
rolling-queue250.0Bounded channel for STM that discards old entries when full (bsd3, data, library)2012-02-16JoeyAdams
rope-utf16-splay300.0Ropes optimised for updating using UTF-16 code units and row/column pairs. (bsd3, data, language, library, text)2018-02-11OlleFredriksson
rose-trees1240.0A collection of rose tree structures. (bsd3, data, library, tree)2017-10-28athanclark
rose-trie860.0Trees with polymorphic paths to nodes, combining properties of Rose Trees and Tries. (data, gpl, library)2017-03-27RaminHonary
roundtrip-aeson620.0Un-/parse JSON with roundtrip invertible syntax definitions. (bsd3, data, library)2018-10-14ThomasSutton, ChristianMarie
route-planning140.0A library and utilities for creating a route (bsd3, data, library)2014-04-18TonyMorris
row-types200.0Open Records and Variants (data, data-structures, library, mit)2018-07-02dwincort
rowrecord100.0Build records from lists of strings, as from CSV files. (bsd3, data, library, text)2010-09-27KeeganMcAllister
rset270.0Range set (data, library)2017-08-08lovasko
rstream140.0stream-fusion framework from vector (bsd3, data, data-structures, library)2018-11-01chessai
rtorrent-state150.0Parsing and manipulation of rtorrent state file contents (data, gpl, library)2014-08-17MateuszKowalczyk
ruby-marshal650.0Parse a subset of Ruby objects serialised with Marshal.dump. (data, library, mit)2017-03-30filib
ruin120.0Pliable records (bsd3, data, library, records)2016-08-07NicolasFrisby
runmany550.0Run multiple commands, interleaving output and errors (bsd3, data, nix, program, system)2018-04-26JohnWiegley
runmemo250.0A simple memoization helper library (bsd3, data, library)2013-11-28DanBurton
s-cargot810.0A flexible, extensible s-expression library. (bsd3, data, library)2018-03-02gdritter
s-cargot-letbind670.0Enables let-binding and let-expansion for s-cargot defined S-expressions. (data, library)2018-06-12KevinQuick
s-expression200.0simple general-purpose s-expressions (data, library, mit, program)2017-05-01sboo
safe-freeze160.0Support for safely freezing multiple arrays in the ST monad. (bsd3, data, library)2012-06-02ReinerPope
safe-globals150.0Safe top-level mutable variables which scope like ordinary values (bsd3, data, library)2011-12-21KeeganMcAllister
safe-length112.0Tired of accidentally calling length on tuples? Relief at last! (bsd3, data, library)2015-10-29JeremyShaw
safecopy5040.0Binary serialization with version control. (data, library, parsing, public-domain)2018-12-26AdamGundry, DavidFox, DavidHimmelstrup, DavidJohnson, JeremyShaw
safecopy-migrate150.0Making SafeCopy migrations easier (data, library, public-domain)2018-08-19Artyom
safecopy-store650.0Binary serialization with version control. (data, library, parsing, public-domain)2017-12-21NCrashed
safeint170.0overflow-checked Int type (bsd3, data, library)2015-10-29AndresLoeh
schedule-planner210.0Find the ideal lesson layout (convenience, data, lgpl, planning, program)2015-06-21justus
schema110.0Encoding-independent schemas for Haskell data types. (agpl, data, library)2016-12-20iphydf
schematic2012.0JSON-biased spec and validation tool (bsd3, data, library)2019-02-20dredozubov
scientific10731.75Numbers represented using scientific notation (bsd3, data, library)2018-05-07BasVanDijk, BryanOSullivan
scythe130.0Fast CSV lexing on ByteString (bsd3, data, library, program)2018-09-19DavidJohnson
sec100.0Semantic Editor Combinators. (bsd3, combinators, data, library)2010-03-30SteffenSiering
securemem1880.0abstraction to an auto scrubbing and const time eq, memory chunk. (bsd3, data, library)2018-02-27VincentHanquez
semi-iso340.0Weakened partial isomorphisms, reversible computations. (control, data, library, mit)2014-12-12pawel834
semibounded-lattices120.0A Haskell implementation of semibounded lattices (bsd3, data, library)2016-09-27xuhao
semigroupoids-syntax110.0RebindableSyntax using the semigroupoids package (bsd3, data, library)2014-11-01TonyMorris
semigroups7432.75Anything that associates (algebra, bsd3, data, data-structures, library, math)2018-07-02EdwardKmett, EricMertens, HerbertValerioRiedel, ryanglscott
semigroups-actions110.0Semigroups actions (algebra, bsd3, data, data-structures, library, math)2012-12-20PetrPudlak
semilattices580.0Semilattices (algebra, bsd3, data, data-structures, library, math)2018-12-18robrix
semiring-num3732.0Basic semiring class and instances (data, library, mit)2017-10-20oisdk
semirings690.0two monoids as one, in holy haskimony (algebra, bsd3, data, data-structures, library, math, mathematics, maths)2019-01-12chessai
semver772.0Representation, manipulation, and de/serialisation of Semantic Versions. (data, library)2015-03-27BrendanHay
separated1970.0A data type with elements separated by values (bsd3, data, library)2018-02-02TonyMorris, qfpl, GeorgeWilson
seqid1420.0Sequence ID production and consumption (bsd3, data, library)2018-10-26wraithm, LukeHoersten
sequence380.0A type class for sequences and various sequence data structures. (bsd3, data, data-structures, library)2015-05-16AtzeVanDerPloeg
sequential-index200.0Sequential numbers that allow arbitrarily inserting numbers - for containers (bsd3, data, library)2013-01-29AristidBreitkreuz
serialize-instances150.0Instances for Serialize of cereal (data, library, mit)2016-10-28SimonHudon, bandali
set-extra940.0Functions that could be added to Data.Set. (bsd3, data, library)2018-05-22DavidFox
set-monad630.0Set monad (bsd3, data, library, monad)2018-10-11GeorgeGiorgidze
set-of550.0Sets of fixed size, with typelits (bsd3, data, library)2019-02-04fresheyeball
setoid (deprecated in favor of skeletal-set)200.0A Haskell implementation of setoid (bsd3, data, deprecated, library)2017-03-12PavloKerestey
setops150.0Uniform names (and Unicode operators) for set operations on data structures. (data, library, public-domain)2012-05-10eelis
sets560.0Ducktyped set interface for Haskell containers. (bsd3, data, library, math, mit)2019-01-20athanclark
setters110.0Small (TH) library to declare setters for typical `record' data type fields. (bsd3, data, library)2010-11-23IlyaPortnov
settings230.0Runtime-editable program settings. (data, library, public-domain, user-interfaces)2016-01-27akrasner
sext (deprecated in favor of static-text)740.0Lists, Texts, ByteStrings and Vectors with type-encoded length (bsd3, data, deprecated, library, text, type-system)2017-10-29DmitryDzhus
sgf190.0SGF (Smart Game Format) parser (bsd3, data, library)2014-06-24DanielWagner, tonicebrian, dbouamalay
shapely-data120.0Generics using @(,)@ and @Either@, with algebraic operations and typed conversions (bsd3, data, generics, library)2013-12-22BrandonSimmons
shortcircuit110.0Short-circuit values and expressions. (bsd3, control, data, library)2010-10-14AristidBreitkreuz
sieve120.0Sieve is an implementation of the Sieve abstract data type. (data, gpl, library)2013-01-15JohnSingleton
siggy-chardust180.0Rounding rationals to significant digits and decimal places. (data, library, math, mpl, numeric)2018-06-22philderbeast
sign260.0Arithmetic over signs and sets of signs (algebra, bsd3, data, library, math)2016-01-16MasahiroSakai
simple-atom120.0Atom (or symbol) datatype for fast comparision and sorting. (bsd3, compilers-interpreters, data, library, parsing)2011-04-06ThomasSchilling
simple-conduit1080.0A simple streaming I/O library based on monadic folds (bsd3, conduit, data, library)2017-01-23JohnWiegley
simple-index120.0Allows simple indexation on any data type (bsd3, data, library)2014-01-07HugoGomes
simple-money160.0Simple library to handle and interexchange money (data, library, public-domain)2017-01-20nbrk
simple-pipe3390.0simple pipeline library like conduit (bsd3, data, library)2015-09-29YoshikuniJujo
simple-rope110.0Memory-efficient strings with concatenation and splitting. (bsd3, data, library)2011-06-24EugeneKirpichov
simtreelo1120.0Load data organized in a tree. (data, gpl, library)2018-10-23mgmillani
singleton-dict200.0Typelevel balanced search trees via a singletonized Data.Map (bsd3, data, dependent-types, library)2017-06-09ArieMiddelkoop
singleton-nats620.0Unary natural numbers relying on the singletons infrastructure. (bsd3, data, dependent-types, library)2018-09-18AndrasKovacs, ryanglscott
singleton-typelits120.0Singletons and induction over GHC TypeLits (bsd3, data, library)2018-07-11mniip
sink (deprecated)130.0An alternative to lazy I/O that doesn't conflate execution with evaluation (control, data, deprecated, library, mit, system)2011-08-27JakeMcArthur
siphash (deprecated in favor of memory)290.0siphash: a fast short input PRF (bsd3, cryptography, data, deprecated, library)2012-12-14VincentHanquez
siren-json2240.0Siren Tools for Haskell (data, library, mit)2019-02-18alunduil
size-based600.0Sized functors, for size-based enumerations (bsd3, data, library)2018-10-19JonasDuregard
sized672.0Sized sequence data-types (bsd3, data, library)2018-03-18HiromiIshii
sized-grid302.0Multidimensional grids with sized specified at compile time (data, library, mit)2018-11-21edwardwas
sized-vector (deprecated in favor of sized)1770.0Size-parameterized vector types and functions. (bsd3, data, deprecated, library)2016-07-27HiromiIshii
skeletal-set190.0Skeletal set - a set with equivalence relation different from equality (bsd3, data, library)2018-04-24PavloKerestey
skip-list120.0An implementation of pure skip lists (data, library, mit)2017-07-22gmalecha
slotmap100.0Pure Haskell slotmap implementation over ST or IO. (bsd3, data, library)2018-09-17HarpoRoeder
smallarray240.0low-level unboxed arrays, with minimal features. (bsd3, data, library)2012-06-15AntoineLatter
smallstring200.0A Unicode text type, optimized for low memory overhead (bsd3, data, library)2012-06-15AntoineLatter
smaoin210.0Utilities for the Smaoin semantic information model. (data, library, public-domain)2015-06-18akrasner
smoothie3410.0Smooth curves via several interpolation modes (bsd3, data, library)2018-06-10DimitriSabadie
snowflake260.0A loose port of Twitter Snowflake to Haskell. Generates arbitrary precision, unique, time-sortable identifiers. (apache, data, library)2015-03-17edofic
sop-core1622.0True Sums of Products (bsd3, data, library)2018-10-20AndresLoeh
sorted190.0Efficient, type-safe sorted sequences (data, library, mit)2013-11-15JosephAbrahamson
sorted-list2270.0Type-enforced sorted lists and related functions. (bsd3, data, library)2018-04-25DanielDiaz
sorting120.0Utils for sorting. (bsd3, data, library)2015-04-26joneshf
spacepart130.0Space partition data structures. Currently only a QuadTree. (bsd3, data, library)2009-02-16CoreyOConnor
sparse250.0A playground of sparse linear algebra primitives using Morton ordering (bsd3, data, library, vector)2015-07-03EdwardKmett, HansHoglund
spdx1150.0SPDX license expression language, Extras (bsd3, data, library)2018-10-29phadej
special-keys170.0Simple data types that help me here and there. (bsd3, data, library)2013-09-01HugoGomes
splaytree200.0Provides an annotated splay tree (bsd3, data, library)2013-04-20JohnLato
spreadsheet750.0Read and write spreadsheets from and to CSV files in a lazy way (bsd3, data, library, text)2018-09-02HenningThielemann
srcloc2560.0Data types for managing source code locations. (bsd3, data, library)2018-03-30GeoffreyMainland
srec130.0Parsing and processing s-records. (bsd3, data, embedded, library)2011-08-27TomHawkins
sstable110.0SSTables in Haskell (bsd3, data, library, program)2010-07-31MariusEriksen
st2420.0shared heap regions between local mutable state threads (bsd3, data, library)2018-11-03chessai
stable-memo1180.0Memoization based on argument identity (data, library, mit)2015-07-12JakeMcArthur
stable-tree330.0Trees whose branches are resistant to change (bsd3, data, library, program)2015-03-14tsuraan
stack-prism280.0Stack prisms (bsd3, data, library)2018-06-16MartijnVanSteenbergen, SjoerdVisscher
stackage-types (deprecated in favor of stackage-curator)250.0Shared data types between various Stackage packages (data, deprecated, library, mit)2016-01-20MichaelSnoyman
star (deprecated in favor of semirings)160.0*-semirings (bsd3, data, deprecated, library)2017-12-31chessai
state160.0Data.State (data, library)2009-10-19EvgenyJukov, MauricioAntunes
state-codes640.0ISO 3166-2:US state codes and i18n names (data, library, mit)2017-10-17acamino
state-record (deprecated in favor of lens)100.0Better records for State monad states (data, deprecated, library)2011-04-17KarlVoelker
stateref970.0Abstraction for things that work like IORef. (data, public-domain)2009-11-19JamesCook
static-tensor410.0Tensors of statically known size (bsd3, data, library)2017-12-16vagarenko
static-text890.0Lists, Texts, ByteStrings and Vectors of statically known length (bsd3, data, library, text, type-system)2019-01-23DmitryDzhus
stdata170.0Structure Data Library (bsd3, data, library)2011-06-22DavidDarais
stdf140.0Parse Structured Test Data Format (STDF) (data, gpl, library, program)2014-10-13m
stdio562.25A simple and high performance IO toolkit for Haskell (bsd3, data, library)2019-02-18winterland
stm-linkedlist110.0Mutable, doubly linked lists for STM (bsd3, data, library)2011-10-20JoeyAdams
stm-sbchan100.0Bounded channel for STM where item sizes can vary (bsd3, data, library)2012-07-31JoeyAdams
stm-tlist120.0Mutable, singly-linked list in STM (bsd3, data, library)2012-02-22JoeyAdams
storable90.0Storable type class for variable-sized data (bsd3, data, foreign, library)2009-03-05TomasJanousek
storable-complex1912.0Storable instance for Complex (bsd3, data, library)2018-11-05CarterSchonwald, JedBrown
storable-endian1540.0Storable instances with endianness (bsd3, data, library)2016-12-16EugeneKirpichov
storable-record2740.0Elegant definition of Storable instances for records (bsd3, data, foreign, library)2018-02-17HenningThielemann
storable-tuple1670.0Storable instance for pairs and triples (bsd3, data, foreign, library)2017-10-03HenningThielemann
storablevector3450.0Fast, packed, strict storable arrays with a list interface like ByteString (bsd3, data, library)2018-02-17HenningThielemann
storablevector-carray100.0Conversion between storablevector and carray (bsd3, data, library)2012-07-23HenningThielemann
storablevector-streamfusion100.0Conversion between storablevector and stream-fusion lists with fusion (bsd3, data, library)2009-04-24HenningThielemann
store2920.0Fast binary serialization (data, library, mit, serialization)2018-10-21MichaelSloan, MichaelSnoyman, borsboom, fpcomplete, philipp
store-core2600.0Fast and lightweight binary serialization (data, library, mit, serialization)2018-06-17MichaelSloan, MichaelSnoyman, borsboom, fpcomplete, philipp
store-streaming180.0Streaming interfaces for `store` (data, library, mit, serialization)2018-06-01MichaelSloan
stream70.0Initial project template from stack (data, library, mit)2016-04-20MichaelSnoyman
stream-fusion900.0Faster Haskell lists using stream fusion (bsd3, data, library)2013-01-12DonaldStewart, KidoTakahiro
streaming4762.5an elementary streaming prelude and general stream type. (bsd3, data, library, pipes, streaming)2018-10-03MichaelThompson, andrewthad, chessai
streaming-bracketed50.0A resource management decorator for "streaming". (data, library, mit, streaming)2018-07-31DanielDiazCarrete
streaming-bytestring1212.25effectful byte steams, or: bytestring io done right. (bsd3, data, library, pipes, streaming)2018-04-05IvanMiljenovic, andrewthad
streaming-cassava380.0Cassava support for the streaming ecosystem (data, library, mit, streaming)2018-01-23IvanMiljenovic
streaming-commons7582.0Common lower-level functions needed by various streaming data libraries (data, library, mit)2018-06-28MichaelSnoyman
streaming-concurrency780.0Concurrency support for the streaming ecosystem (data, library, mit, streaming)2018-05-23IvanMiljenovic
streaming-conduit770.0Bidirectional support between the streaming and conduit libraries (data, library, mit, streaming)2018-02-11IvanMiljenovic
streaming-fft300.0online streaming fft (bsd3, data, library)2018-10-24chessai
streaming-process260.0Streaming support for running system process (data, library, mit, streaming)2018-05-23IvanMiljenovic
streaming-sort400.0Sorting streams (data, library, mit, streaming)2018-03-23IvanMiljenovic
streaming-utils3170.0http, attoparsec, pipes and other utilities for the streaming libraries (bsd3, data, library, pipes, streaming)2019-02-14OliverCharles, MichaelThompson, andrewthad, chessai
streaming-with360.0with/bracket-style idioms for use with streaming (data, library, mit, streaming)2018-05-23IvanMiljenovic
strict2420.0Strict data types and String IO. (bsd3, data, library, system)2008-03-07DonaldStewart, RomanLeshchinskiy
strict-base180.0Strict versions of base data types. (bsd3, data, library, system)2017-03-18minad
strict-base-types1510.0Strict variants of the types provided in base. (bsd3, data, library)2018-02-11BasVanDijk, SimonMeier, phadej
strict-data380.0A collection of commonly used strict data structures (bsd3, data, library)2017-08-06AlexanderThiemann
strict-tuple440.0Strict tuples (bsd3, data, library)2019-01-04mitchellwrosen
string-class1020.0String class library (bsd3, data, library, text)2018-02-13ByronJohnson, k_bx
string-combinators430.0Polymorphic functions to build and combine stringlike values (bsd3, data, library)2014-06-13BasVanDijk
string-conv721.75Standardized conversion between string types (bsd3, data, library, string, text)2016-06-22DougBeardsley, MichaelXavier, OzgunAtaman
string-conversions2682.5Simplifies dealing with different types for strings (bsd3, data, library)2016-12-30SoenkeHahn
string-qq520.0QuasiQuoter for non-interpolated strings, texts and bytestrings. (data, library, public-domain)2011-06-25AudreyTang
string-quote110.0QuasiQuoter for non-interpolated strings, texts and bytestrings. (bsd3, data, library)2011-03-29AudreyTang
string-similarity100.0longest common substring (bsd3, data, library)2013-07-21MarkWotton
string-typelits90.0Type-level Chars and Strings, with decidable equality. (bsd3, data, library)2016-01-27KyleCarter
stringable (deprecated)740.0A Stringable type class, in the spirit of Foldable and Traversable (bytestring, data, deprecated, library, mit, text)2014-05-02JohnWiegley, KetilMalde
stringprep500.0Implements the "StringPrep" algorithm (bsd3, data, library)2014-01-06GeorgePollard
stringtable-atom220.0Memoize Strings as Atoms for fast comparison and sorting, with maps and sets (bsd3, data, library, pugs)2014-05-17AudreyTang, JeffShaw
strptime430.0Efficient parsing of LocalTime using a binding to C's strptime, with some extra features (i.e. fractional seconds) (bsd3, data, library, parsing, system)2012-12-18EugeneKirpichov
structs240.0Strict GC'd imperative object-oriented programming with cheap pointers. (bsd3, data, library)2017-07-28EdwardKmett, EricMertens, ryanglscott
structures282.0"Advanced" Data Structures (bsd3, data, library, structures)2014-07-28EdwardKmett
success452.0A version of Either specialised for encoding of success or failure (data, failure, library, mit)2016-02-07NikitaVolkov
suffixarray160.0n log n implementation of suffix array. (data, gpl, library, program)2012-06-17DanielDeKok, VictorDenisov
suffixtree150.0Efficient, lazy suffix tree implementation (bsd3, data, data-structures, library)2011-10-17BryanOSullivan
suitable110.0Abstract over the constraints on the parameters to type constructors (bsd3, data, library)2011-03-15GaneshSittampalam
swagger730.0Implementation of swagger data model (data, library)2016-09-18ToralfWittner
syb-with-class2570.0Scrap Your Boilerplate With Class (bsd3, data, library)2018-09-24AndreaVezzosi, DavidHimmelstrup, IanLynagh, JeremyShaw
syb-with-class-instances-text130.0Scrap Your Boilerplate With Class Text instance (bsd3, data, library)2010-04-02JeremyShaw
symbol1780.0A 'Symbol' type for fast symbol comparison. (bsd3, data, library)2014-10-09GeoffreyMainland
syntax720.0Reversible parsing and pretty-printing. (data, library, mit)2014-12-12pawel834
syntax-attoparsec150.0Syntax instances for Attoparsec. (data, library, mit)2014-12-12pawel834
syntax-example140.0Example application using syntax, a library for abstract syntax descriptions. (data, mit, program)2014-12-12pawel834
syntax-example-json100.0Example JSON parser/pretty-printer. (data, mit, program)2014-12-12pawel834
syntax-pretty (deprecated in favor of syntax-printer)110.0Syntax instance for pretty, the pretty printing library. (data, deprecated, library, mit)2014-11-23pawel834
syntax-printer110.0Text and ByteString printers for 'syntax'. (data, library, mit)2014-12-12pawel834
t-regex110.0Matchers and grammars using tree regular expressions (bsd3, data, library)2015-02-17AlejandroSerrano
tables (deprecated)772.0In-memory storage with multiple keys using lenses and traversals (bsd3, data, deprecated, lenses, library)2015-01-12EdwardKmett, TimDixon
tagged8302.0Haskell 98 phantom types to avoid unsafely passing dummy arguments (bsd3, data, library, phantom-types)2018-07-02EdwardKmett, ryanglscott
tagged-binary600.0Provides tools for serializing data tagged with type information. (data, library, mit, serialization)2017-07-31jle
tagged-list100.0Lists tagged with a type-level natural number representing their length. (bsd3, data, library)2011-10-21GregoryCrosswhite
tagged-transformer1950.0Monad transformer carrying an extra phantom type tag (bsd3, data, library, phantom-types)2018-04-24EdwardKmett, MatveyAksenov, ryanglscott
tagging90.0Library for tagging data (bsd3, data, library)2010-11-25JosephRe
tai64130.0Tai64 Labels for Haskell (data, library, mpl)2016-06-21KimAltintop
tbox290.0Transactional variables and data structures with IO hooks (concurrency, data, library)2010-04-02PeterRobinson
template-default120.0declaring Default instances just got even easier (bsd3, data, library)2016-06-03DanielWagner, GregoryCollins
tensor150.0A completely type-safe library for linear algebra (data, gpl, library, math)2013-10-19NicolaSquartini
terminal-text350.0Text data type for styled terminal output, including all standard ANSI effects (bold, italic, blinking) and ANSI / 256 / truecolor colors support for Unix and Windows (whenever possible). (apache, data, library)2018-12-18danilo2, iamrecursion
text15012.75An efficient packed Unicode text type. (bsd2, data, library, text)2018-09-22BryanOSullivan, HerbertValerioRiedel
text-ansi60.0Text styling for ANSI terminals. (bsd3, data, library)2018-11-14mitchellwrosen
text-binary800.0Binary instances for text types (bsd2, data, library)2016-09-29JakubWaszczuk
text-containers60.0Memory-efficient string-indexed container types. (data, data-structures, gpl, library)2017-10-13HerbertValerioRiedel
text-conversions742.5Safe conversions between textual types (data, library)2016-06-09jxv, lexi_lambda
text-icu1722.0Bindings to the ICU library (bsd3, data, library, text)2015-01-09BryanOSullivan
text-icu-normalized610.0Dealing with Strict Text in NFC normalization. (data, gpl, library, text)2017-04-30misandrist
text-locale-encoding100.0Encode and decode Text to/from ByteString using TextEncoding (bsd3, codec, data, library, text)2013-09-10MikhailKuddah
text-manipulate1090.0Case conversion, word boundary manipulation, and textual subjugation. (data, library, text)2015-04-17BrendanHay
text-normal110.0Unicode-normalized text (data, library, mit)2014-04-22JoelTaylor
text-plus180.0Utils for text (bsd3, data, library)2017-08-06AlexanderThiemann
text-position90.0Handling positions in text and position-tagging it. (data, library, public-domain, text)2015-04-28akrasner
text-regex-replace700.0Easy replacement when using text-icu regexes. (apache, data, library, text)2018-05-25EricRochester
text-short2052.0Memory-efficient representation of Unicode text strings (bsd3, data, library)2018-03-04HerbertValerioRiedel
text-stream-decode (deprecated in favor of streaming-commons)230.0Streaming decoding functions for UTF encodings. (deprecated) (data, deprecated, library, mit, text)2014-03-26MichaelSnoyman
text-time110.0Library for Time parsing from Text into UTCTime (bsd3, data, library)2016-12-14klangner
text-utf790.0UTF-7 encoding/decoding for Data.Text (bsd3, data, library)2014-12-08DanielWright
text-utf8140.0An efficient packed UTF-8 backed Unicode text type. (bsd2, data, library, text)2018-05-14HerbertValerioRiedel
text1780.0Non-empty values of `Data.Text`. (bsd3, data, library)2018-09-25TonyMorris, qfpl, GeorgeWilson
tfp1680.0Type-level integers, booleans, lists using type families (bsd3, data, library, type-system)2019-01-05HenningThielemann, PeterGavin
th-format400.0Template Haskell based support for format strings (bsd3, data, library)2018-04-21mtesseract
these2322.5An either-or-both data type & a generalized 'zip with padding' typeclass (bsd3, control, data, library)2019-01-26JohnWiegley, phadej, cmccann
these-skinny100.0A fork of the 'these' package without the dependency bloat. (bsd3, data, library)2018-06-28chessai
thorn140.0Datatype Manipulation with Template Haskell (bsd3, data, generics, library)2013-11-23Kinokkory
through-text250.0Convert textual types through Text without needing O(n^2) instances. (bsd3, data, library)2015-05-07AdamBergmark
thyme2970.0A faster time library (bsd3, data, library, system)2014-11-27LiyangHu
tickle200.0A port of @Data.Binary@ (bsd3, data, library)2018-01-03TonyMorris, qfpl, GeorgeWilson
tiempo120.0Specify time intervals in different units (secs, mins, hours, etc.) (data, library, mit, time)2015-09-01RomanGonzalez
tight-apply100.0Tightly binding infix function application (data, library, public-domain)2015-09-07Shockk
tile390.0Slippy map tile functionality. (bsd3, data, library)2017-10-26jmc41493
time-interval90.0Use a time unit class, but hold a concrete time type. (data, library, public-domain)2016-05-30akrasner
time-lens290.0Lens-based interface to Data.Time data structures (bsd3, data, library)2018-01-04RomanCheplyaka
time-patterns180.0Patterns for recurring events (bsd3, data, library, time)2018-07-02jfmueller
time-series110.0Time series analysis. (data, gpl, library, program)2013-11-08AtsuroHoshino
time-series-lib (deprecated in favor of timeseries)200.0Library for Time Series processing (bsd3, data, deprecated, library)2016-12-10klangner
time-units650.0A basic library for defining units of time as types. (bsd3, data, library)2011-03-07AdamWick
timelike120.0Type classes for types representing time (data, library, system)2016-04-07esz
timeparsers190.0Attoparsec parsers for various Date/Time formats. (bsd3, data, library)2012-11-07NathanHunter, PhilipWeaver
timer-wheel450.0A timer wheel (bsd3, data, library)2019-02-03mitchellwrosen
timeseries130.0Library for Time Series processing (bsd3, data, library)2016-12-28klangner
timezone-olson2240.0A pure Haskell parser and renderer for binary Olson timezone files (bsd3, data, library)2018-03-14YitzGale
timezone-olson-th650.0Load TimeZoneSeries from an Olson file at compile time. (bsd3, data, library)2017-11-26petterb
timezone-series2350.0Enhanced timezone handling for Data.Time (bsd3, data, library)2018-03-14YitzGale
tiphys120.0Navigating and editing JSON data (bsd3, data, library)2016-01-11llhotka
tmpl90.0simple executable for templating (data, gpl, program)2014-09-25michelk
tn210.0A simple daily journal program (data, library, program, text, utility)2016-05-17pharpend
to-string-class (deprecated)520.0Converting string-like types to Strings. (bsd3, data, deprecated, library)2009-09-22BasVanDijk
to-string-instances (deprecated)120.0Instances for the ToString class. (bsd3, data, deprecated, library)2009-09-22BasVanDijk
tomato-rubato-openal130.0Easy to use library for audio programming. (bsd3, data, library)2015-10-19HeinrichApfelmus
tomland462.25Bidirectional TOML serialization (configuration, data, library, mpl, program, text, toml)2019-01-14shersh, vrom911
tomlcheck1590.0Command-line tool to check syntax of TOML files (bsd3, data, program, toml)2018-12-03vmchale
tostring690.0The ToString class (bsd3, data, library)2015-01-26AdamBergmark, ErikHesselink
total-map270.0Finitely represented /total/ maps (bsd3, data, library)2018-11-24ConalElliott
total-maps120.0Dense and sparse total maps. (containers, data, data-structures, library, mit)2015-11-19pawel834
transaction670.0Monadic representation of transactions. (data, library, mit)2018-03-28arowM
traverse-with-class1820.0Generic applicative traversals (data, library, mit)2017-04-23AdamBergmark, RomanCheplyaka, SjoerdVisscher
tree-diff562.0Diffing of (expression) trees. (bsd3, data, library, testing)2018-11-25phadej
tree-traversals140.0Functions and newtype wrappers for traversing Trees (data, library)2018-03-28NoahEasterly
tree-view810.0Render trees as foldable HTML and Unicode art (bsd3, data, library)2016-10-05EmilAxelsson
treefold100.0Provides folds which try to combine elements in a balanced way. (data, library, mit)2017-10-04oisdk
tries300.0Various trie implementations in Haskell (bsd3, data, library, tree)2018-11-20athanclark
true-name820.0Template Haskell hack to violate module abstractions (bsd3, data, library, unsafe)2017-08-24LiyangHu
truthful110.0Typeclass for truthfulness of values (data, library, public-domain)2015-09-07Shockk
tskiplist590.0A Skip List Implementation in Software Transactional Memory (STM) (concurrency, data, library)2014-05-26PeterRobinson
ttask130.0This is task management tool for yourself, that inspired by scrum. (bsd3, data, library, program)2016-06-10outoftune
ttl-hashtables520.0Extends hashtables so that entries added can be expired after a TTL (bsd3, data, library)2019-01-18erick
tup-functor130.0Homogeneous tuples (bsd3, data, library, program)2014-10-31BalazsKomuves
tuple1080.0Various functions on tuples (bsd3, data, library)2014-09-07LennartAugustsson
tuple-gen120.0Enum instances for tuples where the digits increase with the same speed (bsd3, data, library)2012-03-11TillmannVogt
tuple-generic140.0Generic operations on tuples (data, library, public-domain)2015-11-25Artyom
tuple-hlist200.0Functions to convert between tuples and HLists. (data, library)2015-11-16NicolasDudebout
tuple-morph180.0Morph between tuples, or convert them from and to HLists. (data, library, mit)2014-11-22pawel834
tuple-ops380.0various operations on n-ary tuples via GHC.Generics (bsd3, data, library)2018-01-27JiasenWu
tuple-sop680.0functions on n-ary tuples using generics-sop (data, gpl, library)2018-06-24ferdinandvw
tuple-th650.0Generate (non-recursive) utility functions for tuples of statically known size (bsd3, data, library, template-haskell)2015-06-28DanielSchuessler
tupleinstances90.0Functor, Applicative and Monad for n-ary tuples. (bsd3, data, library)2010-03-16DiegoEcheverri
tuples-homogenous-h98410.0Wrappers for n-ary tuples with Traversable and Applicative/Monad instances. (bsd3, data, library)2013-09-09PetrPudlak
txt601.25Text (bsd3, data, library, text)2018-05-05MatthewFarkasDyck
ty1050.0Typed type representations and equality proofs (bsd3, data, library)2016-02-25ConalElliott
type110.0Dynamic casting library with support for arbitrary rank type kinds. (bsd3, data)2010-02-09TopiKarvonen
type-aligned420.0Various type-aligned sequence data structures. (bsd3, data, data-structures, library)2014-12-30AtzeVanDerPloeg
type-combinators1330.0A collection of data types for type-level programming (bsd3, data, library)2016-06-15KyleCarter
type-combinators-quote100.0Quasiquoters for the 'type-combinators' package. (bsd3, data, library)2016-01-26KyleCarter
type-combinators-singletons420.0Interop between /type-combinators/ and /singletons/. (bsd3, data, library)2018-01-21jle
type-equality220.0Type equality, coercion/cast and other operations. (bsd3, data, library)2013-05-11ErikHesselink
type-equality-check140.0Type equality check (bsd3, data, library)2016-07-21GwernBranwen, WolfgangJeltsch
type-iso290.0Typeclasses for injective relations and isomorphisms between types. (apache, cast, data, library, types)2018-02-05jtapolczai, jtapolczai2
type-level300.0Type-level programming library (bsd3, data, library)2016-07-08AlfonsoAcosta, HoseinAttarzadeh, LennartAugustsson, ugeorge
type-level-integers320.0Provides integers lifted to the type level (bsd3, data, library)2017-04-06mtesseract
type-level-kv-list210.0A module for hash map like object with type level keys. (data, library, mit)2016-11-06arowM
type-level-natural-number150.0Simple type level natural numbers (bsd3, data, library, type-system)2014-03-30GregoryCrosswhite
type-level-natural-number-induction100.0High-level combinators for performing inductive operations. (bsd3, data, library, type-system)2012-07-23GregoryCrosswhite
type-level-natural-number-operations120.0Basic operations on type-level natural numbers. (bsd3, data, library, type-system)2010-10-14GregoryCrosswhite
type-level-tf90.0Type-level programming library (type families) (bsd3, data, library)2011-10-29CoreyOConnor
type-list (deprecated)282.0Operations on type-level lists and tuples. (bsd3, data, deprecated, library)2016-06-20mjmrotek
type-map900.0Type-indexed maps (data, library, mit)2019-01-03lyxia
type-structure110.0Type structure analysis (data, library, mit)2014-04-04NikitaVolkov
type-unary3910.0Type-level and typed unary natural numbers, inequality proofs, vectors (bsd3, data, library)2018-04-21ConalElliott
typeable-th130.0Automatic deriving of TypeableN instances with Template Haskell (bsd3, data, library)2014-10-21BennoFuenfstueck
typed-duration280.0Thread delay and timeout functions with typed arguments (bsd3, concurrency, data, library)2017-07-13OmerAgacan
typed-streams300.0A stream based replacement for lists (data, library, mit)2017-03-18clinton
typelevel740.0Useful type level operations (type families and related operators). (apache, data, library)2018-12-18danilo2, iamrecursion
typelevel-tensor180.0Tensors whose ranks and dimensions type-inferred and type-checked. (bsd3, data, library)2013-02-10TakayukiMuranushi
typelits-witnesses1702.25Existential witnesses, singletons, and classes for operations on GHC TypeLits (data, library, mit)2018-10-02jle
typenums690.0Type level numbers using existing Nat functionality (bsd3, data, library)2018-10-24AdituV
typeparams140.0Lens-like interface for type level parameters; allows unboxed unboxed vectors and supercompilation (bsd3, configuration, data, dependent-types, library, optimization)2015-01-26MikeIzbicki
typerep-map242.5Efficient implementation of a dependent map with types as keys (data, data-structures, library, mit, types)2019-01-21shersh, vrom911
typesafe-endian170.0Enforce endianness with types (bsd3, data, library)2013-07-20JohnEricson
typical110.0Type level numbers, vectors, list. This lib needs to be extended. (data, library)2009-02-26RickKaudewitz
tz922.0Efficient time zone handling (apache, data, library)2018-11-19GergelyRisko, MihalyBarasz
tzdata1072.0Time zone database (as files and as a module) (apache, data, library)2018-11-20MihalyBarasz
udcode100.0Does a set of code words form a uniquely decodable code? (bsd3, data, library)2009-01-06WaltBaety
udp-conduit132.0Simple fire-and-forget conduit UDP wrappers (conduit, data, library)2016-10-21kqr
uglymemo700.0A simple (but internally ugly) memoization function. (data, library, public-domain)2011-10-04LennartAugustsson
uid90.0Simple unique identifier datatype, serializable and encodable as base32 (data, library, mit)2013-08-11PhilHargett
ulid120.0Implementation of ULID, lexicographically sortable unique identifiers (bsd3, data, library, program)2017-06-16steven777400, adrian
unamb2160.0Unambiguous choice (bsd3, concurrency, data, library, other)2018-03-16ConalElliott
unamb-custom110.0Functional concurrency with unamb using a custom scheduler. (bsd3, concurrency, data, library)2008-12-24LukePalmer
unboxed220.0All the standard sum types but strict and unboxed as possible (bsd3, data, library)2019-01-01CarterSchonwald
unboxed-containers790.0Self-optimizing unboxed sets using view patterns and data families (bsd3, data, library)2012-05-10EdwardKmett
unboxed-ref410.0Fast unboxed references for ST and IO monad (bsd3, data, library)2017-07-17winterland, terrorjack
unfix-binders200.0Unfixing and recursion schemes for data types with binders (bsd3, data, library)2018-10-11aspiwack
ungadtagger120.0Abstract GADTs from typelevel tags (bsd3, data, library)2012-09-30AndriyPolishchuk
unicode-transforms3730.0Unicode normalization (bsd3, data, library, text, unicode)2018-11-16harendra
uniform-pair270.0Uniform pairs with class instances (bsd3, data, library)2018-09-11ConalElliott
union782.0Extensible type-safe unions (bsd3, data, library)2018-10-13int_index
union-find740.0Efficient union and equivalence testing of sets. (algorithms, bsd3, data, library)2012-06-23ThomasSchilling
union-find-array240.0union find data structure (algorithms, data, library, mit)2015-04-10BertramFelgenhauer, MartinAvanzini
union-map (deprecated)100.0Heterogeneous map by open unions. (bsd3, data, deprecated, library)2015-02-24
unique750.0Fully concurrent unique identifiers (bsd3, concurrency, data, library)2015-09-28EdwardKmett
uniqueid110.0Splittable Unique Identifier Supply (bsd3, data, library)2009-07-13SebastianFischer
unit300.0Aliases for `()`. (bsd3, data, library)2018-01-15amohrland
universal-binary110.0Parser for OS X Universal Binary format. (bsd3, data, library)2010-03-25ErikCharlebois
universe600.0Classes for types where we know all the values (bsd3, data, library)2014-04-18DanielWagner, phadej
universe-base710.0A class for finite and recursively enumerable types and some helper functions for enumerating them (bsd3, data, library)2015-09-09DanielWagner, phadej
universe-instances-base640.0Universe instances for types from the base package (bsd3, data, library)2014-04-18DanielWagner, phadej
universe-instances-extended560.0Universe instances for types from select extra packages (bsd3, data, library)2015-08-30DanielWagner, phadej
universe-instances-trans470.0Universe instances for types from the transformers and mtl packages (bsd3, data, library)2014-05-25DanielWagner, phadej
universe-reverse-instances580.0instances of standard classes that are made possible by enumerations (bsd3, data, library)2014-04-18DanielWagner, phadej
unix-time5350.0Unix time parser/formatter and utilities (bsd3, data, library)2019-01-22KazuYamamoto
unjson220.0Bidirectional JSON parsing and generation. (bsd3, data, library)2018-11-19GracjanPolak, MikhailGlushenkov, jonathanjouty_scrive
unlifted-list190.0GHC Haskell lists of non-thunks (things of kind TYPE 'UnliftedRep) (bsd3, data, library)2018-12-05chessai
unliftio-pool500.0Data.Pool generalized to MonadUnliftIO. (bsd3, control, data, database, library, network)2018-05-28BardurArantsson
unliftio-streams210.0Generalization of io-streams to MonadUnliftIO (apache, data, io-streams, library, network)2018-09-27BardurArantsson
unordered-containers7402.5Efficient hashing-based container types (bsd3, data, library)2019-01-18JohanTibell, dfeuer
unordered-intmap220.0A specialization of `HashMap Int v` (bsd3, data, library)2018-07-01DmitryIvanov
unpacked-maybe-numeric220.0maybes of numeric values with fewer indirections (bsd3, data, library)2018-12-24chessai
unsafely110.0Flexible access control for unsafe operations and instances (bsd3, data, library)2014-09-21HiromiIshii
unwrapped-functors100.0Unwrapping sums/products lifted to functors (data, library)2018-07-13int_index
urlpath4560.0Painfully simple URL deployment. (bsd3, data, library, web)2018-11-03athanclark
urn90.0Universal Resource Names (bsd3, data, library)2014-05-24SamTruzjan
urn-random120.0A package for updatable discrete distributions (data, library, mit)2017-07-14kwf, AntalSpectorZabusky
userid1820.0The UserId type and useful instances for web development (bsd3, data, library)2018-12-26DavidFox, JeremyShaw
users-persistent200.0A persistent backend for the users package (data, library, mit)2016-05-22AlexanderThiemann
utc140.0A pragmatic time and date library. (data, library, mit, parsing, time)2015-06-17LarsPetersen
util-plus200.0A collection of commonly used utils (bsd3, data, library)2017-08-06AlexanderThiemann
utility-ht3642.0Various small helper functions for Lists, Maybes, Tuples, Functions (bsd3, data, library, list)2017-06-03HenningThielemann
uuid5440.0For creating, comparing, parsing and printing Universally Unique Identifiers (bsd3, data, library)2016-12-17AntoineLatter, HerbertValerioRiedel
uuid-aeson152.0Aeson types for UUID instances. (bsd3, data, library)2014-01-15KirkPeterson
uuid-le120.0Universally Unique Identifiers with little-endian-ish encoding tools (data, library, mit)2014-09-29StijnVanDrongelen
uuid-quasi100.0Supplemental package for 'uuid' allowing quasiquotation. (bsd3, data, library)2013-10-21LarsPetersen
uuid-types2890.0Type definitions for Universally Unique Identifiers (bsd3, data, library)2016-04-02AntoineLatter, HerbertValerioRiedel
uvector210.0Fast unboxed arrays with a flexible interface (bsd3, data, library)2010-02-15BryanOSullivan, DonaldStewart
uvector-algorithms140.0Efficient algorithms for uvector unboxed arrays (bsd3, data, library)2009-09-08DanDoel
uxadt110.0Cross-language extensible representation for algebraic data type instances. (data, gpl, library)2014-07-22AndreiLapets
validated-literals340.0Compile-time checking for partial smart-constructors (bsd3, data, library)2019-01-10MerijnVerstraaten
validation2712.5A data-type like Either but with an accumulating Applicative (bsd3, data, library)2018-02-26TonyMorris, qfpl
value-supply170.0A library for generating values without having to thread state. (bsd3, data, library)2011-03-18IavorDiatchki
var90.0Mutable variables and tuples (bsd3, data, library)2013-06-10AndySonnenburg
variation290.0nominal value with possible variations (bsd3, data, library)2017-06-10cspollard
vault3590.0a persistent store for values of arbitrary types (bsd3, data, library)2018-08-04HeinrichApfelmus
vcd190.0Reading and writing VCD files. (bsd3, data, embedded, hardware, library)2012-12-19TomHawkins
vcs-revision130.0Facilities for accessing the version control revision of the current directory. (bsd3, data, library, parsing, system)2014-05-16EugeneKirpichov
vec420.0Vec: length-indexed (sized) list (bsd3, data, library)2018-03-16phadej
vector10352.25Efficient Arrays (bsd3, data, data-structures, library)2018-12-07BryanOSullivan, CarterSchonwald, DanDoel, HerbertValerioRiedel, RomanLeshchinskiy
vector-algorithms7230.0Efficient algorithms for vector arrays (bsd3, data, library)2018-10-09BryanOSullivan, DanDoel, ErikDeCastroLopo
vector-binary230.0Binary instances for vector types (deprecated) (bsd3, data, library)2013-05-08JakubWaszczuk
vector-binary-instances4432.25Instances of Data.Binary for vector (bsd3, data, library)2018-11-02BenGamari, BryanOSullivan, DonaldStewart
vector-buffer1000.0A buffer compatible with Data.Vector.* (bsd3, data, library)2015-03-30VivianMcPhail
vector-bytes-instances380.0Serial (from the bytes package) for Vector (from the vector package) (bsd3, data, library)2018-05-22RenzoCarbonara
vector-bytestring100.0ByteStrings as type synonyms of Storable Vectors of Word8s (bsd3, data, library)2012-01-03BasVanDijk
vector-clock140.0Vector clocks for versioning message flows (data, data-structures, distributed-computing, gpl, library)2013-06-23AlexandruScvortov, hansonkd
vector-conduit170.0Conduit utilities for vectors (data, library, mit)2012-12-31JaredHance
vector-functorlazy100.0vectors that perform the fmap operation in constant time (bsd3, data, data-structures, library)2013-07-05MikeIzbicki
vector-heterogenous160.0A type-safe library for vectors whose elements can be of any type, or any type satisfying some constraints (bsd3, data, data-structures, library)2014-10-17MikeIzbicki
vector-instances3350.0Orphan Instances for 'Data.Vector' (bsd3, data, data-structures, library)2017-01-08EdwardKmett, ryanglscott
vector-instances-collections100.0Instances of the Data.Collections classes for Data.Vector.* (bsd3, data, library)2012-03-26TobiasBrandt
vector-mmap560.0Memory map immutable and mutable vectors (bsd3, data, data-structures, library)2017-06-30DanielPeebles, fho
vector-random110.0Generate vectors filled with high quality pseudorandom numbers (bsd3, data, library)2010-02-21DonaldStewart
vector-read-instances (deprecated in favor of vector)140.0(deprecated) Read instances for 'Data.Vector' (bsd3, data, data-structures, deprecated, library)2011-08-29ChristianHoener
vector-sized4992.25Size tagged vectors (bsd3, data, library)2018-12-17jle, jophish
vector-split360.0Combinator library for splitting vectors. (data, data-structures, library, mit)2017-01-31fho
vector-static (deprecated)150.0Statically checked sizes on Data.Vector (bsd3, data, data-structures, deprecated, library)2010-11-11DanielPeebles, JakeMcArthur
vector-text750.0Text implementation based on unboxed char vector. (apache, data, library)2018-12-18danilo2, iamrecursion
vector-th-unbox3802.0Deriver for Data.Vector.Unboxed using Template Haskell (bsd3, data, library)2016-04-23LiyangHu
verbosity260.0Simple enum that encodes application verbosity. (bsd3, data, library)2016-08-28PeterTrsko
versioning680.0Type-safe data versioning. (apache, data, library)2019-01-08lortabac
versioning-servant300.0Servant combinators for the versioning library. (apache, data, library)2018-11-08lortabac
versions2312.25Types and parsers for software version numbers. (bsd3, data, library)2018-09-20fosskers
vinyl-generics210.0Convert plain records to vinyl (and vice versa), generically. (bsd3, data, generics, library)2019-02-19GagandeepBhatia
vinyl-named-sugar160.0Syntax sugar for vinyl records using overloaded labels. (data, library, mit)2019-02-21Solonarv
vocabulary-kadma100.0Smaoin vocabulary definitions of the base framework. (data, library, public-domain)2015-06-18akrasner
vpq180.0Priority queue based on vector (bsd3, data, library)2018-05-03MatthewFarkasDyck
warc910.0A parser for the Web Archive (WARC) format (bsd3, data, library, program)2018-08-04BenGamari
wavesurfer160.0Parse WaveSurfer files (bsd3, data, library, sound, text)2009-03-23StefanKersten
weak-bag200.0Mutable bag backed by weak pointers to each item (bsd3, data, library)2018-10-04chessai
wide-word1340.0Data types for large but fixed width signed and unsigned integers (bsd2, data, library)2019-01-30ErikDeCastroLopo
winery310.0Sustainable serialisation library (bsd3, codec, data, library, parsing, program, serialization)2018-09-11FumiakiKinoshita
wire-streams680.0Fast binary io-streams adapter. (bsd3, data, io-streams, library, parsing)2016-09-27winterland
wiring180.0Wiring, promotion and demotion of types. (bsd3, data, library)2018-08-11seanparsons
with120.0Simple open product type (bsd3, control, data, library)2018-09-16iokasimovmt
with-index180.0A tiny library for composing indexed traversals (bsd3, data, lenses, library)2017-10-14PhilFreeman
with-location (deprecated in favor of call-stack)750.0Use ImplicitParams-based source locations in a backward compatible way (data, deprecated, library, mit)2016-03-16SimonHengel
witherable852.5filterable traversable (bsd3, data, library)2018-11-14FumiakiKinoshita
witness320.0values that witness types (bsd3, data, library)2016-06-26AshleyYakeley
wizard210.0the fantastical wizard monoid (bsd3, data, library)2018-05-16chessai
wkt180.0Parsec parsers and types for geographic data in well-known text (WKT) format. (bsd3, data, library)2017-08-29BenGamari
wkt-geom1960.0A parser of WKT, WKB and eWKB. (apache, data, library)2019-02-19newmana
woffex100.0Web Open Font Format (WOFF) unpacker. (bsd3, data, program)2011-05-01AndrewDrake
woot140.0Real time group editor without operational transform. (data, library, mit)2016-08-05tgolson
word270.0Words of arbitrary size (bsd3, data, library, math, numeric)2018-05-14MatthewFarkasDyck
word-trie940.0Implementation of a finite trie over words. (data, gpl, library)2015-05-10DmitryIvanov, MateuszKowalczyk
word12 (deprecated)110.0Word12 library. (bsd3, data, deprecated, library)2014-09-07
word24682.024-bit word and int types for GHC (bsd3, data, library)2016-10-25JohnLato, winterland
word83210.0Word8 library (bsd3, data, library)2017-08-01KazuYamamoto
world-peace320.0Open Union and Open Product Types (bsd3, data, library)2018-03-11cdepillabout
wrap330.0Wrap a function's return value with another function (bsd3, data, functions, library)2015-02-06ChrisDone
wraparound130.0Convenient handling of points on a seamless 2-dimensional plane (bsd3, data, library)2012-11-28ChristopherHoward, infrared
wright100.0Colour space transformations and metrics. (data, library, mit)2014-05-16vi
x5095470.0X509 reader and writer (bsd3, data, library)2018-11-04VincentHanquez
x509-store6170.0X.509 collection accessing and storing methods (bsd3, data, library)2018-11-04VincentHanquez
x509-system4350.0Handle per-operating-system X.509 accessors and storage (bsd3, data, library)2017-07-31VincentHanquez
x509-util1510.0Utility for X509 certificate and chain (bsd3, data, program)2018-11-04VincentHanquez
x509-validation5380.0X.509 Certificate and CRL validation (bsd3, data, library)2018-11-04VincentHanquez
xcb-types3340.0Parses XML files used by the XCB project (bsd3, data, library)2019-02-14AntoineLatter, TychoAndersen
xls440.0Parse Microsoft Excel xls files (BIFF/Excel 97-2004) (bsd3, codec, data, library, parser, program, spreadsheet)2018-02-07harendra
xml-isogen610.0Generate XML-isomorphic types (data, library, mit)2018-04-19typeable
xml-query100.0A parser-agnostic declarative API for querying XML-documents (data, library, mit, parsing, xml)2016-04-04NikitaVolkov
xml-query-xml-conduit120.0A binding for the "xml-query" and "xml-conduit" libraries (data, library, mit, parsing, xml)2016-04-04NikitaVolkov
xml-query-xml-types100.0An interpreter of "xml-query" queries for the "xml-types" documents (data, library, mit, parsing, xml)2016-04-04NikitaVolkov
xournal-types260.0Data types for programs for xournal file format (bsd3, data, library)2016-02-12IanWooKim
xxhash192.0A Haskell implementation of the xxHash algorithm (bsd3, cryptography, data, library)2017-01-13christianmarie, ChristianMarie
yahoo-finance-conduit90.0Streaming aproach to the yahoo finance api (data, library, mit)2014-09-18AlexanderThiemann
yall120.0Lenses with a southern twang (bsd3, data, library)2012-09-21BrandonSimmons
yamemo170.0Simple memoisation function (bsd3, data, library)2014-01-20NobuoYamashita
yaml29842.0Support for parsing and rendering YAML documents. (bsd3, data, ffi, library, web)2018-10-14MichaelSnoyman
yaml-light540.0A light-weight wrapper with utility functions around HsSyck (bsd3, data, library)2010-10-27MichaelIlseman
yaml-light-lens300.0Lens interface to yaml-light. (bsd3, data, library)2018-07-03AnthonyCowley
yaml-pretty-extras180.0Extra functionality for pretty printing Yaml documents. (bsd3, data, library)2018-06-28locallycompact
yaml-union380.0Read multiple yaml-files and override fields recursively (bsd3, data, library, program)2017-11-10michelk
yarn-lock990.0Represent and parse yarn.lock files (data, library, mit)2018-06-12Profpatsch
z85520.0Implementation of the z85 binary codec (bsd3, data, library)2018-12-30athanclark
zalgo (deprecated in favor of functional-kmp)140.0Z-algorithm implemented on haskell's built-in cons-cell-based lists. (bsd3, data, deprecated, library)2015-09-01mniip
zcache110.0Zobrist keys for game state tracking (bsd3, data, library)2010-06-14SamAnklesaria
zero810.0Semigroups with absorption (bsd3, data, library)2016-05-25DimitriSabadie
zippo110.0A simple lens-based, generic, heterogenous, type-checked zipper library (bsd3, data, library)2012-09-21BrandonSimmons
zlib-conduit (deprecated in favor of conduit-extra)880.0Streaming compression/decompression via conduits. (deprecated) (bsd3, conduit, data, deprecated, library)2014-04-02MichaelSnoyman
zm710.0Language independent, reproducible, absolute types (bsd3, data, library, reflection)2017-12-11PasqualinoAssini