Packages tagged control

726 packages have this tag.

[Merge tag] (trustees only)

Related tags: library (721), bsd3 (502), mit (130), deprecated (67), monads (57), data (45), program (42), public-domain (32), concurrency (21), pipes (21), failure (16), monad (15), gpl (13), parallelism (13), comonads (12), effect (12), bsd2 (11), error-handling (11), network (11), system (9), distributed-computing (8), enumerator (7), categories (6), combinators (6), frp (6), mpl (6), reactivity (6), text (6), cloud-haskell (5), lgpl (5), logic (5), apache (4), conversion (4), monadic-regions (4), streaming (4), ai (3), algebra (3), arrows (3), composition (3), data-structures (3), development (3), exceptions (3), language (3), parsing (3), prelude (3), recursion (3), template-haskell (3), category (2), constraints (2), cryptography (2), database (2), dsl (2), game (2), general (2), generics (2), http (2), io (2), json (2), local-search (2), logging (2), math (2), mutable-state (2), numerical (2), optimisation (2), polymorphism (2), time (2), user-interfaces (2), web (2), animation (1), applicative (1), ...

Name
DLs
Rating
Description
Tags
Last U/L
Maintainer
AAI720.0Abstract Application Interface. (control, library, mit)2015-08-03bash0r
AbortT-monadstf290.0Monads-tf instances for the AbortT monad transformer. (bsd3, control, library)2012-12-07GregoryCrosswhite
AbortT-mtl480.0mtl instances for the AbortT monad transformer (bsd3, control, library)2016-02-06GregoryCrosswhite
AbortT-transformers1790.0A monad and monadic transformer providing "abort" functionality (bsd3, control, library)2019-07-19GregoryCrosswhite
Adaptive-Blaisorblade300.0Library for incremental computing. (bsd3, control, library, program)2013-01-26PaoloGiarrusso
CC-delcont720.0Delimited continuations and dynamically scoped variables (control, library)2016-05-11DanDoel
CC-delcont-alt830.0Three new monad transformers for multi-prompt delimited control (bsd3, control, library)2012-10-23KidoTakahiro
CC-delcont-cxe730.0A monad transformers for multi-prompt delimited control (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-exc290.0A monad transformers for multi-prompt delimited control (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-ref290.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)2011-10-12KidoTakahiro
CC-delcont-ref-tf710.0A monad transformers for multi-prompt delimited control using refercence cells (bsd3, control, library)2011-10-18KidoTakahiro
Cascade310.0Playing with reified categorical composition (control, library, public-domain)2014-11-14NoahEasterly
Catana650.0A monad for complex manipulation of a stream. (bsd3, control, library)2012-02-22DustinDeWeese
ChannelT970.0Generalized stream processors (bsd3, control, enumerator, iteratee, library, pipes, proxies)2018-01-28pthariensflame
ClassyPrelude300.0Prelude replacement using classes instead of concrete types where reasonable (bsd3, control, data, library)2010-05-31SveinOveAas
Clean (deprecated in favor of definitive-base)760.0A light, clean and powerful utility library (bsd3, control, deprecated, library)2013-06-10MarcCoiffier
ComonadSheet320.0A library for expressing spreadsheet-like computations as the fixed-points of comonads. (bsd3, control, library)2014-06-28kwf
Compactable (deprecated in favor of compactable)630.0A generalization for containers that can be stripped of Nothing (bsd3, control, deprecated, library)2017-03-06fresheyeball
Concurrential1150.0Mix concurrent and sequential computation (bsd3, control, library)2015-09-04alexvieth
Configurable250.0Declare types as Configurable then specialize them all in one place (control, library, mit)2012-10-19JosephAbrahamson
ConstraintKinds1470.0Repackages standard type classes with the ConstraintKinds extension (bsd3, control, library)2014-05-20MikeIzbicki
ContArrow1010.0Control.Arrow.Transformer.Cont (bsd3, control, library)2009-09-21EvgenyJukov
Control-Engine (deprecated)1770.0A parallel producer/consumer engine (thread pool) (bsd3, control, deprecated, library)2009-08-18ThomasDuBuisson
Control-Monad-MultiPass300.0A Library for Writing Multi-Pass Algorithms. (bsd3, control, library)2013-06-14KevinBackhouse
Control-Monad-ST2270.0A variation on the ST monad with two type parameters. (bsd3, control, library)2013-06-11KevinBackhouse
Coroutine320.0Type-safe coroutines using lightweight session types. (bsd3, control, library)2008-12-18RyanIngram
DeepArrow1700.0Arrows for "deep application" (bsd3, combinators, control, library)2013-08-13ConalElliott
EitherT (deprecated in favor of either)740.0EitherT monad transformer (bsd3, control, deprecated, library)2012-04-22EyalLotem
Empty460.0A type class for empty containers (bsd3, control, library)2017-03-02fresheyeball
Etage2610.0A general data-flow framework (ai, control, lgpl, library)2014-05-10MitarMilutinovic
FailureT (deprecated in favor of transformers)430.0Failure Monad Transformer (control, deprecated, failure, library, public-domain)2013-03-14MatthewFarkasDyck
FastPush800.0A monad and monad transformer for pushing things onto a stack very fast. (bsd3, control, library)2017-02-26wyager
ForkableT610.0Forkable monad transformers (bsd3, control, library)2015-01-18AndrasSlemmer
Get250.0get stuff out of stuff (bsd3, control, library)2018-01-10MarisaVeryMoe
GotoT-transformers470.0A monad and monadic transformer providing "goto" functionality (bsd3, control, library)2012-07-22GregoryCrosswhite
IfElse1380.0Anaphoric and miscellaneous useful control-flow (bsd3, control, library)2008-12-24IvanPerez, JeffersonHeard, keera_studios_ci
ImperativeHaskell1802.0A library for writing Imperative style haskell. (control, development, embedded, gpl, language, library)2012-06-07MatthewMirman
InfixApplicative650.0liftA2 for infix operators. (bsd3, control, library)2009-12-24ThomasDavie
JuicyPixels-util420.0Convert JuicyPixel images into RGBA format, flip, trim and so on (bsd3, control, library)2014-10-18FumiakiKinoshita
Kleislify620.0Variants of Control.Arrow functions, specialised to kleislis. (bsd3, control, library)2012-05-15DylanJust
Kriens440.0Category for Continuation Passing Style (bsd3, control, library)2015-12-07matteo_provenzano
List3220.0List monad transformer and class (bsd3, control, library)2017-09-27YairChuchem
ListT500.0List transformer (bsd3, control, library)2017-12-14MatthewFarkasDyck
LogicGrowsOnTrees1010.0a parallel implementation of logic programming using distributed tree exploration (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
LogicGrowsOnTrees-MPI610.0an adapter for LogicGrowsOnTrees that uses MPI (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
LogicGrowsOnTrees-network1130.0an adapter for LogicGrowsOnTrees that uses multiple processes running in a network (bsd3, control, distributed-computing, library, logic, parallelism)2016-04-05GregoryCrosswhite
LogicGrowsOnTrees-processes740.0an adapter for LogicGrowsOnTrees that uses multiple processes for parallelism (bsd3, control, distributed-computing, library, logic, parallelism)2014-03-09GregoryCrosswhite
MHask610.0The category of monads (bsd3, control, library)2013-08-06DanBurton
MaybeT660.0MaybeT monad transformer (bsd3, control, library)2008-12-21CaleGibbard, DonaldStewart, EricKidd
MaybeT-monads-tf (deprecated in favor of monads-tf)660.0MaybeT monad transformer compatible with monads-tf (deprecated) (bsd3, control, deprecated, library)2011-06-22BenMillwood
MaybeT-transformers460.0MaybeT monad transformer using transformers instead of mtl. (bsd3, control, library)2010-06-28ErikHesselink, SebastiaanVisser
Mecha250.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
Mechs290.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
MissingM280.0findM and other missing 'M's (bsd3, control, library)2012-11-15DylanJust
MonadCatchIO-mtl (deprecated in favor of exceptions)2190.0Monad-transformer version of the Control.Exception module (bsd3, control, deprecated, library)2014-01-04DanielGorin
MonadCatchIO-mtl-foreign (deprecated)290.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)2010-05-29AntoineLatter
MonadCatchIO-transformers (deprecated in favor of exceptions)3340.0Monad-transformer compatible version of the Control.Exception module (bsd3, control, deprecated, library)2014-12-23AriePeterson
MonadCatchIO-transformers-foreign (deprecated)280.0Polymorphic combinators for working with foreign functions (bsd3, control, deprecated, library)2010-05-29AntoineLatter
MonadPrompt1930.0MonadPrompt, implementation & examples (bsd3, control, library)2014-09-14CaleGibbard, JamesCook, RyanIngram
MonadRandom7582.0Random-number generation monad. (bsd3, control, library)2018-05-22BrentYorgey, CaleGibbard, EricKidd, LukePalmer, PaoloVeronelli, PatrickPalka
MonadRandomLazy620.0Lazy monad for psuedo random-number generation. (bsd3, control, library)2015-12-29NormanRamsey
MonadStack630.0Generalizing lift to monad stacks (bsd2, control, library)2015-07-13bhurt
Monatron480.0Monad transformer library with uniform liftings (bsd3, control, library)2010-05-12TomSchrijvers
Monatron-IO240.0MonadIO instances for the Monatron transformers. (bsd3, control, library)2012-04-26TobiasBrandt
Object250.0Object oriented programming for haskell using multiparameter typeclasses. (apache, control, data, library)2014-05-15yokto
PermuteEffects640.0Permutations of effectful computations (bsd3, control, library)2011-01-16MartijnVanSteenbergen
ProbabilityMonads290.0Probability distribution monads. (bsd3, control, library)2007-10-07EricKidd
ReplicateEffects450.0Composable replication schemes of applicative functors (bsd3, control, library)2012-12-27MartijnVanSteenbergen
RichConditional290.0Tiny library to replace classic if/else (control, library, mit)2015-02-16alexvieth
RoyalMonad810.0All hail the Royal Monad! (bsd3, control, library)2015-09-23AtzeVanDerPloeg
SciFlow2110.0Scientific workflow management system (control, library, mit)2019-05-26kaizhang
SciFlow-drmaa250.0Scientific workflow management system (control, library, mit)2019-05-26kaizhang
THEff790.0TH implementation of effects. (bsd3, control, effect, library, th)2017-01-22kolodeznydiver
Tainted720.0Tainted type, and associated operations (bsd3, control, data, library, monads, trans)2015-05-27RossMeikleham
TotalMap542.0A total map datatype (control, library, mit)2019-09-13edwardwas
TreeT280.0Transformer for Data.Tree (control, library, monads, public-domain)2011-09-17RahulGopinath
TypeCompose5960.0Type composition classes & instances (bsd3, composition, control, library)2018-11-07ConalElliott
Workflow5322.0Workflow patterns over a monad for thread state logging & recovery (bsd3, control, library, workflow)2015-05-01AlbertoCorona
abstract-par1970.0Type classes generalizing the functionality of the 'monad-par' library. (bsd3, control, library, monads, parallelism)2013-11-06RyanNewton
acme-iot440.0IO monad transformer (control, library, mit)2016-08-13mniip
action-permutations480.0Execute a set of actions (e.g. parsers) in each possible order (bsd3, control, library)2014-04-11RossPaterson
allocated-processor460.0Functional combinators for monadic actions that require allocation and de-allocation (bsd3, control, library)2010-05-23NoamLewis
alternative-extra310.0Extra utilities for alternatives (bsd3, control, library)2017-02-20marcosdumay
alternators770.0Handy functions when using transformers. (bsd3, control, library)2018-07-02louispan
annihilator (deprecated in favor of boolean-like)260.0Semigroups with annihilators and utility functions (bsd3, control, deprecated, library)2016-04-05Shou
apart570.0Get all your structure and rip it apart. (bsd3, control, data, library, program)2018-09-28iokasimovmt
apecs6730.0Fast Entity-Component-System library for game programming (bsd3, control, data, game, library)2019-08-03jonascarpay
apecs-stm930.0STM stores for apecs (bsd3, control, data, game, library)2019-07-22jonascarpay
applicative-extras1810.0Instances for Applicative (bsd3, control, library)2011-01-03ChrisEidhof
applicative-fail1100.0Applicative functor and monad which collects all your fails (bsd3, control, library)2015-08-03AlekseyUymanov
applicative-splice270.0Write applicative programs in direct style (generalizes idiom brackets). (control, library, public-domain)2016-04-17AkioTakano
arity-generic-liftA260.0Provides an arity-generic version of the liftA2, liftA3... liftAn functions. (control, library, mit)2018-12-31oisdk
arrow-extras380.0Extra functions for Control.Arrow (bsd3, control, library)2017-03-15louispan
arrow-improve290.0Improved arrows. (control, library, mit)2014-02-18alynn
arrow-list1350.0List arrows for Haskell. (bsd3, control, library)2015-01-16AdamBergmark, ErikHesselink, SebastiaanVisser
arrowapply-utils460.0Utilities for working with ArrowApply instances more naturally (bsd3, control, library)2012-03-18AndrewMiller
arrows3800.0Arrow classes and transformers (bsd3, control, library)2018-03-31RossPaterson
artery460.0A simple, arrow-based reactive programming (bsd3, control, frp, library)2014-09-09FumiakiKinoshita
assert670.0Helpers for Control.Exception.assert (bsd3, control, library)2013-11-18LiyangHu
assert-failure1152.0Syntactic sugar improving 'assert' and 'error' (bsd3, contract, control, library)2017-09-15MikolajKonarski
async-refresh1220.0Package implementing core logic for refreshing of expiring data. (bsd3, control, library)2018-03-20mtesseract
async-refresh-tokens1490.0Package implementing core logic for refreshing of expiring access tokens (bsd3, control, library)2018-03-21mtesseract
asynchronous-exceptions (deprecated)610.0Distinguish between synchronous and asynchronous exceptions (control, deprecated, library, mit)2014-02-05RomanCheplyaka
atl1680.0Arrow Transformer Library (bsd3, control, library)2016-09-28MatthewFarkasDyck
attoparsec-trans980.0Interleaved effects for attoparsec parsers (control, library, mit)2015-06-16srijs
auto2302.25Denotative, locally stateful programming DSL & platform (control, library, mit)2017-01-14jle
auto-update8000.0Efficiently run periodic, on-demand actions (control, library, mit)2019-07-09KazuYamamoto, MichaelSnoyman
backtracking-exceptions300.0A monad transformer for backtracking exceptions (bsd3, control, library)2014-08-22tapuu
backward-state670.0A state monad that runs the state in reverse through the computation (bsd3, control, library, monads)2013-01-14LukePalmer
barrier-monad450.0Implementation of barrier monad, can use custom front/back type (control, library, public-domain)2011-12-01AaronBlack
basic-prelude5512.25An enhanced core prelude; a common foundation for alternate preludes. (control, library, mit, prelude)2017-12-05DanBurton, MichaelSnoyman
billeksah-main320.0Leksah plugin base (control, program)2011-11-29JuergenNicklischFranken
billeksah-main-static280.0Leksah plugin base (control, program)2011-11-29JuergenNicklischFranken
billeksah-services240.0Leksah library (control, library)2011-11-29JuergenNicklischFranken
boolean-like450.0Logical combinatory operations dealing with datatypes representing booleans by their constructors. (bsd3, control, library)2016-09-22Shou
break940.0Break from a loop (bsd3, control, library)2017-04-07GabrielGonzalez
bytestring-progress2680.0A library for tracking the consumption of a lazy ByteString (bsd3, control, library)2019-08-28AdamWick
bytestring-rematch300.0Rematch support for ByteString (control, library, mit)2013-05-19TomCrayford
can-i-haz1240.0Generic implementation of the Has and CoHas patterns (bsd3, control, library)2019-10-110xd34df00d
capability750.0Extensional capabilities and deriving combinators (bsd3, control, library)2019-03-22aherrmann
capataz1260.0OTP-like supervision trees in Haskell (concurrency, control, library, mit)2019-05-21RomanGonzalez
catch-fd1120.0MonadThrow and MonadCatch, using functional dependencies (bsd3, control, library)2012-10-12AndySonnenburg
categories4170.0Categories (bsd3, control, library)2015-01-06EdwardKmett
category3190.0Categorical types and classes (bsd3, control, library, math)2019-07-26MatthewFarkasDyck
category-extras4290.0A meta-package documenting various packages inspired by category theory (bsd3, comonads, control, library, monads)2012-04-06DanDoel, DanielWagner, EdwardKmett, RussellOConnor
cflp3750.0Constraint Functional-Logic Programming in Haskell (bsd3, control, library)2009-06-04SebastianFischer
chr-core650.0Constraint Handling Rules (bsd3, control, library)2018-08-18AtzeDijkstra
classy-parallel300.0Fork of the monad-parallel package using monad-control (control, gpl, library)2012-07-31SamAnklesaria
classy-prelude13710.0A typeclass-based Prelude. (control, library, mit, prelude)2018-10-08GregWeber, MichaelSnoyman
classy-prelude-conduit8940.0classy-prelude together with conduit functions (control, library, mit, prelude)2018-10-08GregWeber, MichaelSnoyman
classy-prelude-yesod7840.0Provide a classy prelude including common Yesod functionality. (control, library, mit, yesod)2018-10-08GregWeber, MichaelSnoyman
cloud-haskell680.0The Cloud Haskell Application Platform (bsd3, control, library)2016-07-30FacundoDominguez, TimWatson
codecov-haskell961.25Codecov.io support for Haskell. (bsd3, control, library, program)2017-06-17killy971
coercible-utils620.0Utility functions for Coercible types (bsd3, control, library)2019-09-10sjakobi, chessai, koz_ross
comonad19732.5Comonads (bsd3, comonads, control, library)2019-05-02EdwardKmett, EricMertens, ryanglscott
comonad-extras4570.0Exotic comonad transformers (bsd3, comonads, control, library)2013-11-25EdwardKmett
comonad-random (deprecated)660.0Comonadic interface for random values (control, deprecated, library)2009-07-21JakeMcArthur
comonad-transformers (deprecated in favor of comonad)11030.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)2013-10-13EdwardKmett
comonads-fd (deprecated in favor of comonad)6080.0This package has been merged into comonad 4.0 (bsd3, comonads, control, deprecated, library)2013-10-13EdwardKmett
compactable3122.25A typeclass for structures which can be catMaybed, filtered, and partitioned. (bsd3, control, library)2019-02-04fresheyeball
composition-prelude10022.0Higher-order function combinators (bsd3, control, data, library)2019-04-13vmchale
computations310.0Advanced notions of computation (bsd3, control, library)2015-05-03WolfgangJeltsch
concatenative830.0A library for postfix control flow. (bsd3, control, library)2010-07-02SamAnklesaria
concurrent-machines2750.0Concurrent networked stream transducers (bsd3, concurrency, control, library)2018-03-14AnthonyCowley
concurrent-state3450.0MTL-like library using TVars (control, library, mit)2014-01-27JoelTaylor
cond2030.0Basic conditional and boolean operators with monadic variants. (bsd3, control, library, logic, monad)2014-11-23AdamCurtis
conkin300.0Tools for functors from Hask^k to Hask (control, library, public-domain)2017-10-26NoahEasterly
constrained-categories3230.0Constrained clones of the category-theory type classes, using ConstraintKinds. (control, gpl, library)2019-06-03leftaroundabout
constrained-monads1740.0Typeclasses and instances for monads with constraints. (control, library, mit)2017-03-31oisdk
constrained-normal610.0Normalised Deep Embeddings for Constrained Type-Class Instances (bsd3, control, library)2014-06-09NeilSculthorpe
constraint-manip470.0Some conviencience type functions for manipulating constraints. (control, library, mit)2017-10-16clinton
constrictor1370.0strict versions of many things in base (control, library, mit)2018-05-31chessai
continue580.0Monads with suspension and arbitrary-spot reentry (bsd3, control, library)2013-04-21ErtugrulSoeylemez, esz
contravariant11492.25Contravariant functors (bsd3, control, data, library)2019-06-03EdwardKmett, EricMertens, ryanglscott
contravariant-extras1800.0Extras for the "contravariant" package (control, library, mit)2018-02-28NikitaVolkov
control610.0Class of monad transformers which control operations can be lifted thru (bsd3, control, library)2018-08-19MatthewFarkasDyck
control-bool740.0Useful combinators for boolean expressions (bsd3, control, library)2013-12-08FumiakiKinoshita
control-dotdotdot420.0Haskell operator `g ... f = \x1 .. xn -> g (f x1 .. xn)`. (bsd3, control, library)2018-01-21erisco
control-dsl2021.75An alternative to monads in do-notation (bsd3, control, dsl, effect, general, io, language, library, mutable-state, polymorphism)2018-10-18yangbo
control-event2940.0Event scheduling system. (bsd3, control, library)2019-05-17ThomasDuBuisson
control-invariants240.0Invariants and contract monitoring (control, library, mit)2016-10-28SimonHudon, bandali
control-iso920.0A typeclass for type isomorphisms (bsd3, control, library)2019-02-04fresheyeball
control-monad-exception5810.0Explicitly typed, checked exceptions with stack traces (control, failure, library, mit, monads)2015-03-12PepeIborra
control-monad-exception-monadsfd1150.0Monads-fd instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-exception-monadstf1350.0Monads-tf instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-exception-mtl1210.0MTL instances for the EMT exceptions monad transformer (control, failure, library, monads, public-domain)2012-05-28PepeIborra
control-monad-failure (deprecated)3120.0A class for monads which can fail with an error. (deprecated) (control, deprecated, failure, library, monads, public-domain)2012-01-18MichaelSnoyman, PepeIborra
control-monad-failure-mtl (deprecated)1040.0A class for monads which can fail with an error for mtl 1 (deprecated) (control, deprecated, failure, library, monads, public-domain)2011-11-30MichaelSnoyman, PepeIborra
control-monad-free2300.0Free monads and monad transformers (control, library, monads, public-domain)2018-10-06LukePalmer, PepeIborra
control-monad-loop360.0Simple monad transformer for imperative-style loops (bsd3, control, library)2012-07-08JoeyAdams
control-monad-omega1580.0A breadth-first list monad. (control, library, public-domain)2019-09-17LukePalmer
control-monad-queue1170.0Reusable corecursive queues, via continuations. (bsd3, control, library)2015-12-19LeonSmith
control-timeout (deprecated)670.0Timeout handling (bsd3, control, deprecated, library)2008-02-01AdamLangley
contstuff (deprecated)3580.0Fast, easy to use CPS-based monad transformers (bsd3, control, deprecated, library, monads)2011-05-19ErtugrulSoeylemez, esz
contstuff-monads-tf (deprecated)630.0ContStuff instances for monads-tf transformers (deprecated) (bsd3, control, deprecated, library, monads)2010-11-24ErtugrulSoeylemez, esz
contstuff-transformers (deprecated)450.0Deprecated interface between contstuff 0.7.0 and the transformers package (bsd3, control, deprecated, library, monads)2010-12-27ErtugrulSoeylemez, esz
conversion1020.0Universal converter between values of different types (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-bytestring640.0"Conversion" instances for the "bytestring" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
conversion-case-insensitive320.0"Conversion" instances for the "case-insensitive" library (control, conversion, data, library, mit)2015-04-23NikitaVolkov
conversion-text890.0"Conversion" instances for the "text" library (control, conversion, data, library, mit)2016-04-12NikitaVolkov
corecursive-main270.0Write your main like it can call itself back. (bsd3, control, library, program)2018-08-19LucasDiCioccio
coroutine-object1320.0Object-oriented programming realization using coroutine (bsd3, control, library)2016-02-05IanWooKim
coverage940.0Exhaustivity Checking Library (control, library, mit)2016-02-17NicolasDelPiano
cr650.0Code review tool (control, gpl, network, program, system)2012-12-03AlexandruScvortov
csp862.0Discrete constraint satisfaction problem (CSP) solver. (ai, constraints, control, failure, library, monads)2018-03-14AndreiBarbu
custom-prelude480.0An enhanced prelude, serving as a foundation for my projects (control, library)2012-10-02AnupamJain
daemons1180.0Daemons in Haskell made fun and easy (control, gpl, library, network, program, system)2013-10-03AlexandruScvortov
data-fresh680.0Interface and functor transformers for fresh values (bsd3, control, library)2013-09-08StijnVanDrongelen
data-lens4730.0Used to be Haskell 98 Lenses (bsd3, comonads, control, library)2018-01-01EdwardKmett, RussellOConnor
data-lens-fd2150.0Lenses (bsd3, comonads, control, library)2016-07-17EdwardKmett, RussellOConnor
data-lens-ixset (deprecated in favor of data-store, tables, lens)1060.0A Lens for IxSet (bsd3, comonads, control, data-structures, deprecated, library)2012-01-15DagOdenhall
decepticons280.0The categorical dual of transformers. (bsd3, control, library)2013-05-07JoeQuinn
deepcontrol3430.0A library that provides deep-level programming style and(or) notation on Applicative and Monad (bsd3, control, library)2015-12-20KONISHI_Yohsuke
deepseq6132.0Deep evaluation of data structures (bsd3, control, library)2018-09-22HerbertValerioRiedel
deepseq-bounded2490.0Bounded deepseq, including support for generic deriving (bsd3, control, library)2015-02-04AndrewSeniuk
deepseq-generics2740.0GHC.Generics-based Control.DeepSeq.rnf implementation (bsd3, control, library)2016-01-03HerbertValerioRiedel
deepseq-magic900.0Deep evaluation of data structures without NFData (control, library, public-domain)2015-01-20EdwardYang
deepseq-th (deprecated in favor of deepseq-generics)1300.0Template Haskell based deriver for optimised NFData instances (bsd3, control, deprecated, library)2012-10-13HerbertValerioRiedel
demarcate (deprecated in favor of free)300.0Demarcating transformed monad. (bsd3, control, deprecated, library)2013-09-23NickolayKudasov
despair690.0Despair (bsd3, control, library)2015-12-01Heather
disposable (deprecated in favor of glazier-react)1180.0Allows storing different resource-releasing actions together. (bsd3, control, deprecated, library)2018-07-02louispan
distributed-closure3452.0Serializable closures for distributed programming. (bsd3, control, library, program)2019-03-20AlexanderVershilov, AlpMestanogullari, FacundoDominguez, MathieuBoespflug
distributed-fork (deprecated)890.0Like 'forkIO', but uses remote machines instead of local threads. (bsd3, control, deprecated, library)2018-06-15utdemir
distributed-fork-aws-lambda (deprecated)810.0AWS Lambda backend for distributed-fork. (bsd3, control, deprecated, library)2018-06-15utdemir
distributed-process6652.5Cloud Haskell: Erlang-style concurrency in Haskell (bsd3, control, library)2018-06-12AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-async1670.0Cloud Haskell Async API (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-azure310.0Microsoft Azure backend for Cloud Haskell (bsd3, control, library)2012-11-05EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-client-server2000.0The Cloud Haskell Application Platform (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-execution850.0Execution Framework for The Cloud Haskell Application Platform (bsd3, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-extras1790.0Cloud Haskell Extras (bsd3, control, library)2018-06-13AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-fsm390.0The Cloud Haskell implementation of Erlang/OTP gen_statem (bsd3, control, library)2017-03-26TimWatson
distributed-process-lifted1100.0monad-control style typeclass and transformer instances for Process monad. (bsd3, cloud-haskell, control, library)2018-02-25jeremyjh
distributed-process-monad-control1260.0Orphan instances for MonadBase and MonadBaseControl. (bsd3, control, library)2017-09-07jeremyjh
distributed-process-platform (deprecated in favor of distributed-process-extras, distributed-process-async, distributed-process-client-server, distributed-process-registry, distributed-process-supervisor, distributed-process-task, distributed-process-execution)290.0The Cloud Haskell Application Platform (bsd3, control, deprecated, library)2014-06-13AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-registry600.0Cloud Haskell Extended Process Registry (bsd3, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-simplelocalnet3291.5Simple zero-configuration backend for Cloud Haskell (bsd3, control, library)2017-08-22AlexanderVershilov, EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-supervisor1030.0Supervisors for The Cloud Haskell Application Platform (bsd3, control, library)2018-06-14AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-systest500.0Cloud Haskell Test Support (bsd3, cloud-haskell, control, library)2017-02-05TimWatson
distributed-process-task880.0Task Framework for The Cloud Haskell Application Platform (bsd3, cloud-haskell, control, library)2016-02-18AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-tests1950.0Tests and test support tools for distributed-process. (bsd3, cloud-haskell, control, library)2017-10-05AlexanderVershilov, FacundoDominguez, MathieuBoespflug, TimWatson
distributed-process-zookeeper900.0A Zookeeper back-end for Cloud Haskell. (bsd3, cloud-haskell, control, library)2017-09-09jeremyjh
distributed-static2860.0Compositional, type-safe, polymorphic static values and closures (bsd3, control, library)2019-05-12EdskoDeVries, FacundoDominguez, MathieuBoespflug, TimWatson
do-notation-dsl (deprecated in favor of control-dsl)720.0An alternative to monads (bsd3, control, deprecated, dsl, effect, general, io, language, library, mutable-state, polymorphism)2018-10-02yangbo
drinkery1440.0Boozy streaming library (bsd3, control, library)2018-07-18FumiakiKinoshita
edenmodules640.0Semi-explicit parallel programming library (bsd3, control, distributed-computing, eden, library, parallelism)2014-04-06MischaDieterle, JostBerthold, horstmeyer
effect-handlers1640.0A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers. (control, library, mit)2016-04-28edofic, blambda
effect-monad1492.0Embeds effect systems and program logics into Haskell using graded monads and parameterised monads (bsd3, control, library, monads)2018-01-24DominicOrchard
effect-stack1480.0Reducing the pain of transformer stacks with duplicated effects (bsd3, control, library)2019-07-14DanielWagner
effects1370.0Computational Effects (bsd3, control, library, monads)2019-04-13SjoerdVisscher
effects-parser270.0Parser Effect for the Control.Effects Library (bsd3, control, library, monads)2013-09-15JesseMcDonald
effin2030.0A Typeable-free implementation of extensible effects (bsd3, control, effect, library)2017-08-03AnthonyVandikas
either15122.0Combinators for working with sums (bsd3, control, library, monads)2019-05-02EdwardKmett, ryanglscott, GeorgeWilson
elevator1760.0Immediately lifts to a desired level (bsd3, control, library)2015-04-01FumiakiKinoshita
elision1640.0Arrows with holes. (bsd2, control, library, program)2016-02-18jacrough
enclosed-exceptions3332.0Catching all exceptions from within an enclosed computation (control, library, mit)2018-07-11MichaelSnoyman, jcristovao
enum-text-rio680.0Making fmt available with rio (bsd3, control, library, program)2019-07-23ChrisDornan
error-context1550.0Provides API for enriching errors with contexts (bsd3, control, error-handling, library)2018-04-10mtesseract
error-continuations280.0Error Continuations (control, library, public-domain)2015-01-05echatav
error-list650.0A useful type for collecting error messages. (control, library, mit)2015-06-18thinkpad20
errorcall-eq-instance (deprecated in favor of base-orphans)580.0An orphan Eq instance for ErrorCall (control, deprecated, library, mit)2015-04-22SimonHengel
errors7452.25Simplified error-handling (bsd3, control, error-handling, library)2018-05-11GabrielGonzalez
errors-ext1790.0`bracket`-like functions for `ExceptT` over `IO` monad. (control, error-handling, library)2018-07-17warlock
eternal2770.0everything breaking the Fairbairn threshold (bsd3, control, library)2016-07-24Heather
ether (deprecated)4042.25Monad transformers and classes (bsd3, control, deprecated, library)2017-06-03int_index
event-driven300.0library for event driven programming (bsd3, control, library)2010-07-16YoshikuniJujo
event-handlers260.0Event handlers (control, data, library, public-domain)2008-12-15JamesCook
event-monad750.0Event-graph simulation monad transformer (control, library, public-domain)2010-01-11JamesCook
event-transformer (deprecated)280.0Initial project template from stack (bsd3, control, deprecated, library, program)2016-10-10SchellScivally
exception-monads-fd (deprecated in favor of exception-mtl)440.0Exception monad transformer instances for monads-fd classes. (bsd3, control, deprecated, error-handling, failure, library, monad)2010-10-06GeoffreyMainland
exception-monads-tf1550.0Exception monad transformer instances for monads-tf classes. (bsd3, control, error-handling, failure, library, monad)2017-05-03GeoffreyMainland
exception-mtl2330.0Exception monad transformer instances for mtl classes. (bsd3, control, error-handling, failure, library, monad)2016-05-10GeoffreyMainland
exception-transformers5000.0Type classes and monads for unchecked extensible exceptions. (bsd3, control, error-handling, failure, library, monad)2019-10-01GeoffreyMainland
exceptional2590.0Essentially the Maybe type with error messages. (bsd2, control, library)2015-07-22pharpend
exceptions11502.0Extensible optionally-pure exceptions (bsd3, control, exceptions, library, monad)2019-08-27EdwardKmett, ryanglscott
exhaustive2910.0Compile time checks that a computation considers producing data through all possible constructors (bsd3, control, library)2019-09-19OliverCharles
exitcode1000.0Monad transformer for exit codes (bsd3, control, library)2019-06-22qfpl
explicit-exception3870.0Exceptions which are explicit in the type signature. (bsd3, control, library)2019-05-23HenningThielemann
explicit-sharing2890.0Explicit Sharing of Monadic Effects (control, library, monads, public-domain)2011-06-30SebastianFischer
extensible-effects9752.25An Alternative to Monad Transformers (control, effect, library, mit)2019-01-03BenFoppa, SvenHeyll, shergill, sickmind
extensible-effects-concurrent18002.0Message passing concurrency as extensible-effect (bsd3, concurrency, control, effect, library, program)2019-07-26SvenHeyll
extensible-exceptions3450.0Extensible exceptions (bsd3, control, library)2012-02-02IanLynagh
failable2170.0A 'Failable' error monad class to unify failure across monads that can fail (bsd3, control, exceptions, library, monad)2019-04-09erick
failure (deprecated in favor of exceptions)2490.0A simple type class for success/failure computations. (deprecated) (bsd3, control, deprecated, failure, library, monads)2014-06-08MichaelSnoyman, Michael_Smith
feature-flags460.0A simple library for dynamically enabling and disabling functionality. (control, library, mit)2015-04-02IanDuncan
fmt-for-rio360.0Adaptor for getting fmt to work with rio (bsd3, control, library, text)2019-07-23ChrisDornan
fold-debounce3660.0Fold multiple events that happen in a given period of time. (bsd3, control, library)2019-10-04debugito
foldl9062.5Composable, streaming, and efficient left folds (bsd3, control, library)2018-10-03GabrielGonzalez
foldl-exceptions282.0Exception handling with FoldM (control, library, mit)2019-02-07chris_martin, Monoid_Mary
foldl-incremental1022.0incremental folds (control, library, mit, statistics)2015-02-23tonyday
foldl-transduce6382.0Transducers for foldl folds. (bsd3, control, library)2018-05-12DanielDiazCarrete
foldl-transduce-attoparsec620.0Attoparsec and foldl-transduce integration. (bsd3, control, library)2016-02-12DanielDiazCarrete
for-free260.0Functor, Monad, MonadPlus, etc for free (control, library, public-domain)2012-07-09AaronBlack
forbidden-fruit260.0A library accelerates imperative style programming. (bsd3, control, library)2015-02-24minpou
forest930.0Tree and Forest types (control, library, mpl)2018-08-02ShaneOBrien
free22102.5Monads for free (bsd3, control, library, monads)2019-08-27EdwardKmett, EricMertens, JohnWiegley, ryanglscott
free-algebras3170.0Free algebras in Haskell. (algebra, control, library, monads, mpl)2019-10-06coot
free-categories340.0free categories (bsd3, control, library)2019-10-01echatav
free-category580.0Free category (algebra, category, control, library, monads, mpl)2019-08-31coot
free-er310.0An extensible effects library (bsd3, control, effect, library, program)2017-10-10OmerAgacan
free-operational790.0Operational Applicative, Alternative, Monad and MonadPlus from free types. (bsd3, control, library)2013-08-08LuisCasillas
free-vl950.0van Laarhoven encoded Free Monad with Extensible Effects (bsd3, control, library, monads, program)2016-02-10aaronlevin
freer1682.25Implementation of the Freer Monad (bsd3, control, library, program)2016-11-25alleledev
freer-effects672.0Implementation of effect system for Haskell. (bsd3, control, library, program)2017-04-16MatejKollar, PeterTrsko, TomasJanousek
freer-simple2170.0Implementation of a friendly effect system for Haskell. (bsd3, control, library, program)2019-10-05lexi_lambda
freer-simple-catching230.0Checked runtime exceptions with freer-simple (control, library, mit)2018-11-12benweitzman
freer-simple-http280.0Make HTTP requests with freer-simple! (control, http, library, mit, web)2018-11-12benweitzman
freer-simple-profiling270.0Automatic profling of freer-simple programs (benchmarking, control, library, mit, profiling)2018-11-12benweitzman
freer-simple-random250.0Random number generators using freer-simple (control, library, mit, random)2018-11-12benweitzman
freer-simple-time250.0freer-simple interface to IO based time functions (control, library, mit, time)2018-11-12benweitzman
from-sum1042.0Canonical fromMaybeM and fromEitherM functions. (bsd3, control, library)2016-11-17cdepillabout
frpnow1682.5Principled practical FRP (bsd3, control, library)2015-08-25AtzeVanDerPloeg
frpnow-gloss620.0Program awesome stuff with Gloss and frpnow! (bsd3, control, library)2015-07-14AtzeVanDerPloeg
frpnow-gtk470.0Program GUIs with GTK and frpnow! (bsd3, control, library)2015-07-14AtzeVanDerPloeg
frpnow-vty660.0Program terminal applications with vty and frpnow! (control, gpl, library, program)2018-03-19JaroReinders
fsharp (deprecated)700.0some F# operators, high priority pipes (bsd3, control, deprecated, library)2014-02-18Heather
full-sessions1530.0a monad for protocol-typed network programming (bsd3, control, library, network)2012-01-23KeigoImai
function-combine480.0Combining functions (bsd3, control, library)2011-09-23IainAlexander
functor290.0Functors (bsd3, control, library, math)2017-11-16MatthewFarkasDyck
functor-apply (deprecated in favor of semigroupoids)3860.0This package has been subsumed by semigroupoids (bsd3, control, deprecated, library)2011-01-30EdwardKmett
functors290.0(.:) and friends, syntax for Functor and Applicative. (bsd3, control, library)2010-11-28AristidBreitkreuz
funflow2290.0Workflows with arrows (control, library, mit, program)2019-10-09nclarke
fused-effects3092.5A fast, flexible, fused effect system. (bsd3, control, library)2019-09-02patrick_thomson, robrix
fused-effects-exceptions1460.0Handle exceptions thrown in IO with fused-effects. (bsd3, control, control., library)2019-07-15patrick_thomson, robrix
future-resource450.0realtime resource handling with manual concurrency (control, lgpl, library)2015-04-22capsjac
gang-of-threads1320.0Non-deterministic parallelism with bags (bsd3, control, library, parallelism)2014-07-22bholst
garlic-bread460.0A monad transformer for keeping track of where you've come from. (bsd3, control, library)2018-03-17parsonsmatt
gas290.0Limit how many steps a program may take. (bsd3, control, library)2018-08-14rightfold
general-prelude (deprecated)650.0Prelude replacement using generalized type classes where possible (bsd3, control, data, deprecated, library)2012-12-18JohnWiegley
generator1130.0Python-generators notation for creation of monadic lists (bsd3, control, library)2015-05-28YairChuchem
generators (deprecated)800.0Actually useful monadic random value generators. (bsd3, control, deprecated, library)2010-06-25LiamOConnorDavis
generic-deepseq750.0Generic deep evaluation of data structures (bsd3, control, generics, library)2012-02-28MaximeHenrion
ghc-call-stack-extras600.0Extra utilities for HasCallStack (bsd3, control, library)2018-03-14dfeuer
gooey470.0Graphical user interfaces that are renderable, change over time and eventually produce a value. (control, library, mit)2015-10-06SchellScivally
grab172.0Applicative non-linear consumption (control, library, mit)2019-06-13chris_martin, Monoid_Mary
graphted1250.0Graph indexed monads. (bsd3, comonads, control, library, monads)2017-05-09AaronFriel
groupoids (deprecated in favor of semigroupoids)2402.0This package has been absorbed into semigroupoids 4.0 (bsd3, categories, control, deprecated, library)2013-10-13EdwardKmett
hasim640.0Process-Based Discrete Event Simulation library (bsd3, control, library)2008-12-29JochemBerndsen
hask250.0Categories (bsd3, control, library)2014-11-10EdwardKmett
haskell-cnc1070.0Library for parallel programming in the Intel Concurrent Collections paradigm. (bsd3, control, library, parallelism, program)2011-08-12RyanNewton
hcron450.0A simple job scheduler, which just runs some IO action at a given time. (bsd3, control, library, scheduling)2012-08-23TimoHuebel
hdph280.0Haskell distributed parallel Haskell (bsd3, control, distributed-computing, library, monads, parallelism, program)2013-02-07PatrickMaier
hdph-closure280.0Explicit closures in Haskell distributed parallel Haskell (bsd3, control, distributed-computing, library)2013-02-07PatrickMaier
hmk1780.0A make alternative based on Plan9's mk. (control, development, distribution, library, program)2016-01-11MathieuBoespflug
hoist-error1560.0Some convenience facilities for hoisting errors into a monad (control, library, mit)2018-06-15JonSterling, schalmers, qfpl
hpc2160.0Code Coverage Library for Haskell (bsd3, control, library)2016-05-04AustinSeipp, HerbertValerioRiedel, IanLynagh
hpc-coveralls3990.0Coveralls.io support for Haskell. (bsd3, control, library, program)2017-05-13killy971
hreader1280.0Generalization of MonadReader and ReaderT using hset (bsd3, control, library)2016-12-12AlekseyUymanov
hs-di662.0Dependency Injection library for Haskell (bsd3, control, dependency-injection, development, library, program, template-haskell, testing)2016-09-26Wizek
hsPID540.0PID control loop (control, lgpl, library)2018-11-25jlamothe
hspec-monad-control270.0Orphan instances of MonadBase and MonadBaseControl for SpecM (bsd3, control, library)2015-05-21bmjames
hyperfunctions240.0Hyperfunctions (bsd3, categories, control, library)2015-06-21EdwardKmett
if260.0(?) and (?>) conditional operator (bsd3, control, library)2016-11-17winterland
ifcxt402.25put if statements within type constraints (bsd3, control, library)2016-08-03MikeIzbicki
implicit-logging390.0A logging framework built around implicit parameters. (control, lgpl, library)2016-09-11rev_null
index-core820.0Indexed Types (bsd3, control, indexed, library)2016-06-12GabrielGonzalez
indexed790.0Haskell98 indexed functors, monads, comonads (bsd3, control, library)2016-09-17ReinerPope, typedrat
indexed-extras880.0Indexed functors, monads and comonads that require extensions to Haskell98 (bsd3, control, library)2016-07-08ReinerPope, typedrat
indexed-free840.0indexed monads for free (bsd3, control, library, monad)2013-11-27FumiakiKinoshita
indextype980.0A series of type families and constraints for "indexable" types. (bsd3, control, library)2017-10-19clinton
inject-function830.0Monadic functions with injected parameters. (control, gpl, library)2013-09-13DimitriSabadie
instance-control720.0Controls how the compiler searches for instances using type families. (bsd3, control, library)2017-09-27lazac
interchangeable (deprecated)680.0A type class for interchangeable data. (control, deprecated, library, mit)2015-01-18arowM
interleave280.0Combinators for supporting interleaving of different behaviours (bsd3, control, library)2011-01-07NeilBrown
interruptible560.0Monad transformers that can be run and resumed later, conserving their context. (bsd3, control, library)2016-06-08marcosdumay
interspersed1050.0An abstraction over interspersing monadic actions (control, library, mit)2016-06-02NikitaVolkov
invariant6810.0Haskell98 invariant functors (bsd2, control, data, library)2019-05-02NicolasFrisby, ryanglscott
invertible2380.0bidirectional arrows, bijective functions, and invariant functors (bsd3, composition, control, data, library)2018-04-15DylanSimon
invertible-hlist270.0invertible functions and instances for HList (bsd3, composition, control, data, library)2017-03-07DylanSimon
io-choice2000.0Choice for IO and lifted IO (bsd3, control, library)2018-12-11KazuYamamoto
io-reactive280.0An API for generating TIMBER style reactive objects. (bsd3, control, library, program, reactivity)2008-09-23AndyGill
io-region360.0Exception safe resource management with dynamic regions (bsd3, control, library)2015-04-24YurasShumovich
iotransaction280.0Supports the automatic undoing of IO operations when an exception is thrown. (control, library, mit)2013-05-04DylanShearer
ixmonad (deprecated in favor of effect-monad, type-level-sets)1250.0Embeds effect systems into Haskell using parameteric effect monads (bsd3, control, deprecated, library, monads)2014-05-15DominicOrchard
joint960.0Trying to compose non-composable (bsd3, control, data, library)2019-09-15iokasimovmt
json-tracer1250.0A polymorphic, type-safe, json-structured tracing library (bsd3, control, library)2018-05-11autotaker
lambda-devs390.0a Paralell-DEVS implementaion based on distributed-process (bsd3, control, library, program, simulation)2013-11-24alios
lawless-concurrent-machines250.0Concurrent networked stream transducers (bsd3, concurrency, control, library)2017-10-02misandrist
lax810.0Lax arrows (bsd3, control, library)2012-02-07WolfgangJeltsch
layers220.0Modular type class machinery for monad transformer stacks. (bsd3, control, library)2013-03-14ShaneOBrien
lazy310.0Explicit laziness for Haskell (control, library, mit)2018-04-28NikitaVolkov
lazy-priority-queue660.0Lazy-Spined Monadic Priority Queues (bsd3, control, data, gpl, library, program)2019-09-19MarioBlazevic
lazyio1590.0Run IO actions lazily while respecting their order (bsd3, control, library, monads)2016-12-14HenningThielemann
lens-misc260.0Miscellaneous lens utilities. (bsd3, control, library)2018-07-02louispan
lens-tutorial852.5Tutorial for the lens library (bsd3, control, library)2019-06-19GabrielGonzalez
lensref1020.0References which can be joined and on which lenses can be applied (bsd3, control, data, library)2014-05-18PeterDivianszky
level-monad1360.0Non-Determinism Monad for Level-Wise Search (control, library, monads, public-domain)2009-06-22SebastianFischer
lifted-base8120.0lifted IO operations from the base library (bsd3, control, library)2018-03-14BasVanDijk
lifted-base-tf260.0lifted IO operations from the base library (bsd3, control, library)2018-08-19MatthewFarkasDyck
list-t7332.0ListT done right (control, data-structures, library, mit, streaming)2019-09-30NikitaVolkov
list-transformer1022.0List monad transformer (bsd3, control, library)2019-08-29GabrielGonzalez
local-search880.0Generalised local search within Haskell, for applications in combinatorial optimisation. (control, library, local-search, optimisation)2013-07-18RichardSenington
log-effect1490.0An extensible log effect using extensible-effects (control, effect, library, logging, mit, program)2019-03-02ibotty, sickmind
log-effect-syslog380.0Syslog functions for log-effect (bsd3, control, effect, library, logging, syslog)2019-03-02sickmind
logicst240.0Backtracking mutable references in the ST and IO monads (bsd3, control, library)2013-04-17AndySonnenburg
logict6210.0A backtracking logic-programming monad. (bsd3, control, library)2019-07-19DanDoel, Bodigrim
loop1290.0Fast loops (for when GHC can't optimize forM_) (control, library, mit)2015-09-03NiklasHambuechen
loop-effin480.0control-monad-loop port for effin (bsd3, control, library)2014-10-07HiromiIshii
loop-while210.0A monad transformer supporting various styles of while loop (bsd3, control, library)2010-01-11NeilBrown
loops790.0Fast imperative-style loops (bsd3, control, library)2014-06-13ThomasTuegel
machinecell4550.0Arrow based stream transducers (bsd3, control, frp, library, reactivity)2018-04-17HidenoriAzuma
machines3392.5Networked stream transducers (bsd3, control, enumerator, library)2019-05-10EdwardKmett, EricMertens, ryanglscott
machines-attoparsec180.0Parse machines streams with attoparsec parsers. (bsd3, control, data, enumerator, library, parsing, text)2019-01-31davean
machines-bytestring220.0ByteString support for machines (bsd3, control, library, machines)2017-06-07zclod
machines-encoding160.0Transcode encodings with machines. (bsd3, control, data, enumerator, library, text)2019-01-31davean
managed2180.0A monad for managed values (bsd3, control, library)2018-02-14GabrielGonzalez
map-classes330.0A set of classes and instances for working with key/value mappings. (bsd3, control, library)2018-03-31clinton
map-reduce-folds280.0foldl wrappers for map-reduce (bsd3, control, library, program)2019-05-14adamCS
mealstrom382.0Manipulate FSMs and store them in PostgreSQL. (control, database, library, mit)2018-11-16amx
mech230.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
mechs210.0mecha are the most complex composite machines known to humanity, lets build them well! (bsd2, concurrency, control, data, library, network, system)2016-08-11CarterSchonwald
memo-ptr200.0Pointer equality memoization (control, library, mit)2015-05-31edofic
memoization-utils380.0Utilities for memoizing functions (control, library, mit)2015-11-06yamadapc
meta-par260.0Provides the monad-par interface, but based on modular scheduler "mix-ins". (bsd3, control, library, monads, parallelism)2012-05-04RyanNewton
metaheuristics300.0Generalised local search within Haskell, for applications in combinatorial optimisation. (control, library, local-search, optimisation)2019-10-04richardjamessenington
micro-recursion-schemes600.0Simple recursion schemes (bsd3, control, library, recursion)2018-05-14
midair802.0Hot-swappable FRP (concurrency, control, frp, gpl, interaction, library, music, reactive, reactivity, user-interfaces)2018-11-10TomMurphy
minioperational (deprecated in favor of monad-skeleton)1660.0fast and simple operational monad (bsd3, control, deprecated, library)2015-01-26FumiakiKinoshita
mix-arrows710.0Mixing effects of one arrow into another one (bsd3, control, library)2012-02-06MiguelMitrofanov
mmorph6552.5Monad morphisms (bsd3, control, library)2019-04-29GabrielGonzalez
mmtl200.0Modular Monad transformer library (bsd3, control, library)2008-09-30MauroJaskelioff
mmtl-base240.0MonadBase type-class for mmtl (bsd3, control, library)2011-12-13MatthewFarkasDyck
modular-prelude (deprecated)380.0A new Prelude featuring first class modules (control, deprecated, library, mit)2012-08-18DanBurton
modular-prelude-classy (deprecated)260.0Reifying ClassyPrelude a la ModularPrelude (control, deprecated, library, mit)2012-08-18DanBurton
monad-abort-fd2230.0A better error monad transformer (bsd3, control, library)2018-04-01MikhailVorozhtsov
monad-atom880.0Monadically convert object to unique integers and back. (bsd3, control, library)2012-03-16GrzegorzChrupala
monad-atom-simple230.0Monadically map objects to unique ints. (bsd3, control, library)2012-02-23GrzegorzChrupala
monad-batcher240.0An applicative monad that batches commands for later more efficient execution (bsd3, control, library)2017-04-29BasVanDijk
monad-bool (deprecated)530.0This package has been removed. (bsd3, control, deprecated, library)2013-01-28JohnWiegley
monad-chronicle220.0These as a transformer, ChronicleT (bsd3, control, library, these)2019-06-02phadej
monad-classes1802.0more flexible mtl (control, library, mit)2018-05-07MatthewFarkasDyck
monad-codec670.0Monadic conversion between complex data structures and unique integers (bsd3, control, library)2012-10-09JakubWaszczuk
monad-connect240.0Transformer for TCP connection with TLS and SOCKS support (control, library, monad, network, public-domain)2016-03-16akrasner
monad-control7130.0Lift control operations, like exception catching, through monad transformers (bsd3, control, library)2018-02-26BasVanDijk
monad-control-aligned850.0Just like monad-control, except less efficient, and the monadic state terms are all * -> * (bsd3, control, library)2018-03-26athanclark
monad-coroutine1870.0Coroutine monad transformer for suspending and resuming monadic computations (concurrency, control, library, monads)2018-02-25MarioBlazevic
monad-dijkstra1090.0A monad transformer for weighted graph searches (bsd3, control, library, monads)2019-01-22ecramer
monad-exception (deprecated in favor of layers)220.0Exstensible monadic exceptions (control, deprecated, library, public-domain)2012-03-01ShaneOBrien
monad-extras2770.0Extra utility functions for working with monads (bsd3, control, library)2017-02-10JohnWiegley
monad-finally1100.0Guard monadic computations with cleanup actions (bsd3, control, library)2018-04-01MikhailVorozhtsov
monad-fork (deprecated in favor of layers)260.0Type class for monads which support a fork operation. (control, deprecated, library, public-domain)2012-02-21ShaneOBrien
monad-hash520.0Monad transformer for incremental hashing (control, cryptography, hash, library, monad, public-domain)2016-05-30akrasner
monad-io-adapter250.0Adapters between MonadIO and MonadBase IO. (control, library)2017-11-21lexi_lambda
monad-journal4250.0Pure logger typeclass and monad transformer (bsd3, control, library)2017-11-25DimitriSabadie
monad-levels350.0Specific levels of monad transformers (control, library, mit)2015-02-03IvanMiljenovic
monad-lgbt350.0Monad transformers for combining local and global state. (bsd2, control, library)2016-07-23MichalGajda
monad-loops4102.25Monadic loops (control, library, public-domain)2015-06-19JamesCook
monad-loops-stm240.0Monadic loops for STM (control, library, public-domain)2013-06-09JamesCook
monad-markov250.0Markov process monad (control, library, mit)2018-06-29arran
monad-memo2012.0Memoization monad transformer (bsd3, control, library, monad)2018-08-31EduardSergeev
monad-mersenne-random352.5An efficient random generator monad, based on the Mersenne Twister (bsd3, control, library)2010-07-14DonaldStewart
monad-open220.0Open recursion for when you need it (control, library, mit)2015-03-22JonSterling
monad-ox680.0Monad for observation extraction (bsd3, control, library, natural-language-processing)2013-04-06JakubWaszczuk
monad-par3672.25A library for parallel programming based on a monad (bsd3, control, library, monads, parallelism)2016-06-16RyanNewton, SimonMarlow
monad-par-extras1650.0Combinators and extra features for Par monads (bsd3, control, library, monads, parallelism)2013-07-12RyanNewton
monad-parallel2130.0Parallel execution of monadic computations (bsd3, control, library, monads)2018-02-25MarioBlazevic
monad-parallel-progressbar340.0Parallel execution of monadic computations with a progress bar (control, library, mit, monads, system, user-interfaces)2015-04-05mnacamura
monad-param (deprecated in favor of indexed)630.0Parameterized monads (bsd3, control, deprecated, library)2011-01-15DominiqueDevriese, EdwardKmett
monad-peel1090.0Lift control operations like exception catching through monad transformers (bsd3, control, library)2017-03-02AndersKaseorg, SergeyAlirzaev
monad-products1532.0Monad products (bsd3, control, library, monads)2016-01-17EdwardKmett
monad-ran390.0Fast monads and monad transformers (bsd3, control, library, monads)2009-05-06EdwardKmett
monad-resumption2270.0Resumption and reactive resumption monads for Haskell. (bsd3, control, library)2019-09-30AdamProcter, IanGraves
monad-skeleton1790.0Monads of program skeleta (bsd3, control, library, monads)2017-08-02FumiakiKinoshita
monad-st2410.0Provides a MonadST class (bsd3, control, library, monads)2017-06-26EdwardKmett
monad-state520.0Utility library for monads, particularly those involving state. (bsd3, control, data, library, monads)2014-12-02ByronJohnson
monad-ste222.25ST monad with efficient explicit errors (bsd2, control, library)2016-05-04CarterSchonwald
monad-stm520.0MonadSTM class analogous to MonadIO (bsd3, control, library)2013-04-07MiguelMitrofanov
monad-supply1800.0Stateful supply monad. (control, data, library, mit, monads)2018-04-03GeoffHulette
monad-task380.0A monad transformer that turns event processing into co-routine programming. (bsd3, control, library)2018-01-04PaulLiu
monad-time1670.0Type class for monads which carry the notion of the current time. (bsd3, control, library)2018-04-09GracjanPolak, MikhailGlushenkov, arybczak, jonathanjouty_scrive
monad-timing260.0Monad transformer for recording timing events (control, library, mit)2016-06-13pikajude
monad-tx260.0A transactional state monad. (bsd3, control, library, monads)2009-04-06MattMorrow
monad-unlift (deprecated in favor of unliftio-core, unliftio, rio)940.0Typeclasses for representing monad transformer unlifting (control, deprecated, library, mit)2016-05-03MichaelSnoyman
monad-unlift-ref432.0Typeclasses for representing monad transformer unlifting (control, library, mit)2017-11-21MichaelSnoyman
monad-validate520.0A monad transformer for data validation. (control, library)2019-08-10lexi_lambda
monad-wrap370.0Wrap functions such as catch around different monads (bsd3, control, library)2013-04-27DavidMazieres
monadLib-compose480.0Arrow-like monad composition for monadLib. (bsd3, control, library, monads)2010-10-20AristidBreitkreuz
monadbi (deprecated)240.0Extract underlying monads from monad transformers (control, deprecated, library)2011-09-22AnupamJain
monadcryptorandom3840.0A monad for using CryptoRandomGen (bsd3, control, cryptography, library)2018-04-11ThomasDuBuisson
monadfibre (deprecated)640.0Monadic functions which provide Choice and Parallelism. (control, deprecated, library)2011-09-22AnupamJain
monadiccp4400.0Constraint Programming (bsd3, control, library)2018-05-09MaikRiechert, PieterWuille, TomSchrijvers
monadiccp-gecode600.0Constraint Programming (bsd3, control, library)2018-05-30JanTikovsky
monadio-unwrappable490.0Reversibly allow monad transformer stacks to run in IO (bsd3, control, library)2012-06-18AndrewMiller
monadlist670.0Monadic versions of list functions (bsd3, control, library)2011-10-08ThomasEding
monadloc1330.0A class for monads which can keep a monadic call trace (control, library, monads, public-domain)2013-06-06PepeIborra
monadloc-pp710.0A preprocessor for generating monadic call traces (control, monads, program, public-domain)2014-10-17PepeIborra
monadplus1860.0Haskell98 partial maps and filters over MonadPlus. (bsd3, control, library)2013-07-23HansHoglund
monads-fd (deprecated in favor of mtl)1220.0Monad classes, using functional dependencies (bsd3, control, deprecated, library)2010-11-07RossPaterson
monads-tf1910.0Monad classes, using type families (bsd3, control, library)2016-06-08RossPaterson
more-extensible-effects572.0Initial project template from stack (bsd3, control, library)2017-01-29qzchenwl
morphisms340.0It's all about functions (control, data, library, mit)2019-01-04iokasimovmt
morphisms-functors910.0Functors, theirs compositions and transformations (control, data, library, mit)2019-01-15iokasimovmt
morphisms-functors-inventory220.0Inventory is state and store (control, data, library, mit)2019-01-12iokasimovmt
morphisms-objects590.0Algebraic structures (control, data, library, mit)2019-01-08iokasimovmt
motor1350.0Type-safe effectful state machines in Haskell (control, library, mpl, program)2019-06-23owickstrom
motor-diagrams830.0Generate state diagrams from Motor FSM typeclasses (control, library, mpl)2019-06-28owickstrom
motor-reflection790.0Reflect on Motor FSM typeclasses to obtain runtime representations (control, library, mpl)2019-06-28owickstrom
mtl6282.75Monad classes, using functional dependencies (bsd3, control, library)2018-02-24DonaldStewart, EdwardKmett, HerbertValerioRiedel, IanLynagh, RossPaterson, ryanglscott
mtl-evil-instances (deprecated in favor of layers)250.0Instances for the mtl classes for all monad transformers. (control, deprecated, library, public-domain)2012-02-29ShaneOBrien
mtl-extras (deprecated in favor of transformers-lift)270.0Higher order versions of MTL classes (bsd3, control, deprecated, library)2016-08-12int_index
mtl-tf (deprecated)480.0Monad Transformer Library with Type Families (bsd3, control, deprecated, library)2018-01-23MatthewFarkasDyck, TrevorElliott
mtl-unleashed1280.0MTL classes without the functional dependency (bsd3, control, library)2015-11-11DavidFox
mtlx1000.0Monad transformer library with type indexes, providing 'free' copies. (bsd3, control, library)2012-10-15MarkSnyder
multipass540.0Folding data with multiple named passes (bsd3, control, library)2013-01-27EdwardKmett
multistate2890.0like mtl's ReaderT / WriterT / StateT, but more than one contained value/type. (bsd3, control, library)2019-06-06lspitzner, fozworth, dukerutledge
mvc1990.0Model-view-controller (bsd3, concurrency, control, library)2018-08-19GabrielGonzalez
mvc-updates720.0Concurrent and combinable updates (bsd3, concurrency, control, library)2014-09-23GabrielGonzalez
mzv500.0Implementation of the "Monads, Zippers and Views" (Schrijvers and Oliveira, ICFP'11) (bsd3, control, library)2014-04-16IsmaelFigueroa
named892.5Named parameters (keyword arguments) for Haskell (bsd3, control, library)2019-03-18Artyom, int_index
natural1660.0Natural number (bsd3, control, library)2019-01-11qfpl
natural-transformation1122.0A natural transformation package. (bsd3, control, library)2016-11-15AndrewFarmer, AndyGill, NeilSculthorpe, ryanglscott
needle380.0ASCII-fied arrow notation (control, library, mit)2014-09-28ScrambledEggs
newtype1730.0A typeclass and set of functions for working with newtypes. (bsd3, control, library)2019-09-10DariusJahandarie, HerbertValerioRiedel, jcristovao
newtype-deriving780.0Instance derivers for newtype wrappers (control, library, mit, template-haskell)2016-05-02NikitaVolkov
newtype-generics3612.0A typeclass and set of functions for working with newtypes (bsd3, control, library)2019-09-10jcristovao, sjakobi
newtype-th860.0A template haskell deriver to create Control.Newtype instances. (bsd3, control, library, template-haskell)2012-07-19MichaelSloan
newtyper270.0Extra functions for the Control.Newtype typeclass (bsd3, control, library)2012-05-15DylanJust
nondeterminism492.0A monad and monad transformer for nondeterministic computations. (ai, constraints, control, failure, library, monads)2015-10-19AndreiBarbu
nqe1330.0Concurrency library in the style of Erlang/OTP (control, library, public-domain)2018-10-09xenog
objective3490.0Composable objects (bsd3, control, library)2017-12-20FumiakiKinoshita
observable900.0Continuation patterns (bsd3, control, library)2018-12-10iokasimovmt
open-signals640.0A mechanism similar to checked exceptions that integrates with MTL and transformer stacks (control, library, mit)2016-04-17darwin226
operational3102.25Implementation of difficult monads made easy with operational semantics. (bsd3, control, library, monads)2016-11-21HeinrichApfelmus
operational-class820.0MonadProgram typeclass for the operational package (control, library, mit)2015-07-12srijs
overload970.0Finite overloading (control, library, mit)2018-03-08darwin226
pandora2850.0A box of patterns and paradigms (control, data, library, mit)2019-07-27iokasimovmt
parallel6372.0Parallel programming library (bsd3, control, library, parallelism)2018-07-13AustinSeipp, HerbertValerioRiedel, IanLynagh, SimonMarlow
parallel-tree-search1110.0Parallel Tree Search (concurrency, control, library, public-domain)2009-04-09SebastianFischer
parameterized700.0Parameterized/indexed monoids and monads using only a single parameter type variable. (bsd3, control, library)2017-12-17louispan
partial430.0A nullary type class for partial functions (control, library, mit)2017-11-28PhilFreeman
partial-isomorphisms760.0Partial isomorphisms. (bsd3, control, library)2017-05-12TillmannRendel, schernichkin
partial-lens (deprecated in favor of data-lens)270.0Haskell 98 Partial Lenses (comonads, control, deprecated, library, mit)2011-12-21RussellOConnor
perm1100.0permutation Applicative and Monad with many mtl instances (bsd3, control, library)2012-11-11AndySonnenburg
phantom-state1130.0Phantom State Transformer. Like State Monad, but without values. (bsd3, control, library)2016-05-31DanielDiaz
pipe-enumerator580.0A bidirectional bridge between pipes and iteratees (bsd3, control, library, pipes)2015-07-07patrykz
piped340.0Conduit with a smaller core (bsd3, control, library)2019-08-01ssadler
pipeline260.0Continuation patterns (bsd3, control, library)2019-02-24iokasimovmt
pipes9092.75Compositional pipelines (bsd3, control, library, pipes)2019-08-27GabrielGonzalez
pipes-async660.0A higher-level interface to using concurrency with pipes (bsd3, control, library)2018-07-23JohnWiegley
pipes-attoparsec-streaming (deprecated)250.0Streaming parsing in the pipes-core framework with Attoparsec. (bsd3, control, deprecated, library, program)2012-06-20MartinGrabmueller
pipes-break882.0Pipes to group by any delimiter (such as lines with carriage returns) (bsd3, control, library, pipes)2017-03-16mindreader
pipes-bytestring2410.0ByteString support for pipes (bsd3, control, library, pipes)2017-07-14GabrielGonzalez
pipes-category490.0Allows instances for Category, Arrow and ArrowChoice for Pipes. (bsd3, control, library, pipes)2017-10-08louispan
pipes-cellular250.0Pipes-based combinators for cellular data processing (bsd3, control, library, pipes)2015-07-07patrykz
pipes-cellular-csv280.0Efficient pipes-based cellular CSV codec (bsd3, control, library, pipes)2015-07-07patrykz
pipes-concurrency2852.0Concurrency for the pipes ecosystem (bsd3, concurrency, control, library, pipes)2018-09-24GabrielGonzalez
pipes-conduit250.0Conduit adapters (bsd3, control, enumerator, library)2012-03-10PaoloCapriotti
pipes-core (deprecated in favor of pipes)530.0Compositional pipelines (bsd3, control, deprecated, enumerator, library)2012-04-09PaoloCapriotti
pipes-errors480.0Integration between pipes and errors (bsd3, control, error-handling, library, monad, pipes)2015-05-21jdnavarro
pipes-extra580.0Various basic utilities for Pipes. (bsd3, control, enumerator, library)2012-06-09PaoloCapriotti
pipes-extras2470.0Extra utilities for pipes (bsd3, control, library, pipes)2018-07-04GabrielGonzalez
pipes-fluid530.0Reactively combines Producers so that a value is yielded as soon as possible. (bsd3, control, frp, library, pipes)2018-06-01louispan
pipes-group3540.0Group streams into substreams (bsd3, control, library, pipes)2018-07-04GabrielGonzalez
pipes-io280.0Stateful IO streams based on pipes (apache, control, library, pipes)2016-08-26yinguanhao
pipes-lines (deprecated in favor of pipes-break)1130.0Pipes for grouping by lines with carriage returns. (bsd3, control, deprecated, library, pipes)2017-03-16mindreader
pipes-misc1840.0Miscellaneous utilities for pipes, required by glazier-tutorial (bsd3, control, library, pipes)2018-05-22louispan
pipes-parse2232.0Parsing infrastructure for the pipes ecosystem (bsd3, control, library, parsing, pipes)2016-12-03GabrielGonzalez
pipes-random1570.0Producers for handling randomness. (bsd3, control, library)2019-05-10fosskers
pipes-rt840.0A few pipes to control the timing of yields (bsd3, control, library, pipes, program)2015-01-21imalsogreg
pipes-safe3610.0Safety for the pipes ecosystem (bsd3, control, error-handling, library, pipes)2019-09-06GabrielGonzalez
pipes-transduce4000.0Interfacing pipes with foldl folds. (bsd3, control, library)2018-05-12DanielDiazCarrete
pipes-vector1120.0Various proxies for streaming data into vectors (bsd3, control, library)2015-05-29BenGamari
pipes-zeromq4860.0Pipes integration for ZeroMQ messaging (bsd3, control, library, network, pipes)2017-04-20peddie
plan-applicative680.0Applicative/Arrow for resource estimation and progress tracking. (bsd3, control, library)2018-08-18DanielDiazCarrete
poly-cont280.0Poly-kinded continuations (bsd3, control, library)2018-03-14dfeuer
porcupine-core510.0Express portable, composable and reusable data tasks and pipelines (arrows, combinators, control, data, json, library, mit, numerical, pipes, program, streaming)2019-10-09YvesPares
porcupine-http270.0A location accessor for porcupine to connect to HTTP sources/sinks (arrows, combinators, control, data, library, mit, program, web)2019-10-09YvesPares
porcupine-s3260.0A location accessor for porcupine to connect to AWS S3 sources/sinks (arrows, aws, cloud, combinators, control, data, library, mit, program)2019-10-09YvesPares
ports440.0The Haskell Ports Library (control, library)2007-07-14DonaldStewart
prelude-plus830.0Prelude for rest of us (bsd3, control, data, system)2009-10-14YusakuHashimoto
product-profunctors1700.0product-profunctors (bsd3, category, control, library)2018-04-07tomjaguarpaw
profunctor-extras3560.0This package has been absorbed into profunctors 4.0 (bsd3, categories, control, library)2013-10-13EdwardKmett
profunctor-monad220.0Monadic bidirectional programming (control, library, mit)2018-12-07lyxia
profunctors13142.5Profunctors (bsd3, categories, control, library)2019-09-06EdwardKmett, ryanglscott
progress-reporting372.0Functionality for reporting function progress. (control, lgpl, library)2017-09-27JeroenBransen
prologue4670.0Better, more general Prelude exporting common utilities. (apache, control, library)2018-12-18danilo2, iamrecursion
prompt570.0Monad (and transformer) for deferred-effect pure prompt-response queries (control, library, mit)2016-05-26jle
prospect260.0Explore continuations with trepidation (bsd3, control, library)2018-07-10isovector
quantum-arrow712.0An embedding of quantum computation as a Haskell arrow (control, library)2009-01-09LukePalmer
quiver2482.0Quiver finite stream processing library (bsd3, control, library)2015-12-08patrykz
quiver-binary570.0Binary serialisation support for Quivers (control, library, mit)2016-11-26IvanMiljenovic
quiver-bytestring520.0Quiver combinators for bytestring streaming (bsd3, control, library)2015-09-13patrykz
quiver-cell550.0Quiver combinators for cellular data processing (bsd3, control, library)2015-08-31patrykz
quiver-csv550.0Quiver combinators for cellular CSV data processing (bsd3, control, library)2015-08-04patrykz
quiver-enumerator220.0Bridge between Quiver and Iteratee paradigms (bsd3, control, library)2015-08-03patrykz
quiver-groups390.0Group and chunk values within a Quiver (control, library, mit)2016-07-19IvanMiljenovic
quiver-http440.0Adapter to stream over HTTP(s) with quiver (bsd3, control, http, library)2015-08-18ChristianMarie
quiver-instances630.0Extra instances for Quiver (control, library, mit)2016-11-26IvanMiljenovic
quiver-interleave650.0Interleave values from multiple Quivers (control, library, mit)2016-11-26IvanMiljenovic
quiver-sort470.0Sort the values in a quiver (control, library, mit)2016-11-26IvanMiljenovic
random-eff430.0A simple random generator library for extensible-effects (bsd3, control, effect, library)2014-04-01HiromiIshii
random-effin380.0A simple random generator library for effin (bsd3, control, effect, library)2014-10-09HiromiIshii
rank2classes4950.0standard type constructor class hierarchy, only with methods of rank 2 types (bsd3, control, data, generics, library)2019-10-13MarioBlazevic
rate-limit1640.0A basic library for rate-limiting IO actions. (bsd3, control, library)2018-10-20AdamWick, eyevanmalicesun
reactive-haskell (deprecated)250.0minimal fork of io-reactive (bsd3, control, deprecated, library, reactivity)2014-09-23Heather
reactive-io (deprecated)290.0IO-oriented FRP library (control, deprecated, library, mit)2013-07-06RomanCheplyaka
reader-soup490.0Vinyl-based reader-like monad composition (combinators, control, json, library, mit, numerical)2019-10-09YvesPares
reasonable-lens581.25Lens implementation. It is more small but adequately. (control, library, mit)2015-04-15outoftune
reasonable-operational420.0Just size Operational Monad implementation. (control, library, mit)2015-02-13outoftune
record3150.0Anonymous records (control, data-structures, library, mit, records)2016-10-24NikitaVolkov
recursion2912.0A recursion schemes library for GHC. (bsd3, control, library, recursion)2019-08-08vmchale
recursion-schemes11822.5Representing common recursion patterns as higher-order functions (bsd2, control, library, recursion)2019-04-26EdwardKmett, EricMertens, gelisam, ryanglscott
recursion-schemes-ext4230.0Amateur addenda to recursion-schemes (bsd3, control, library)2018-05-08vmchale
ref-fd2392.0A type class for monads with references using functional dependencies. (bsd3, control, library)2019-10-02GeoffreyMainland
ref-mtl470.0A type class for monads with references compatible with the mtl2 library. (bsd3, control, library)2011-04-05GeoffreyMainland
ref-tf2980.0A type class for monads with references using type families. (bsd3, control, library)2019-10-02GeoffreyMainland
reference280.0A class for references in Haskell (control, data, library, mit)2010-09-06MaciejPiechotka
references2330.0Selectors for reading and updating data. (bsd3, control, library)2017-11-28lazac
regions2340.0Provides the region monad for safely opening and working with scarce resources. (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
regions-monadsfd (deprecated in favor of regions-mtl)1300.0Monads-fd instances for the RegionT monad transformer (bsd3, control, deprecated, library, monadic-regions)2010-09-01BasVanDijk
regions-monadstf2020.0Monads-tf instances for the RegionT monad transformer (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
regions-mtl750.0mtl instances for the RegionT monad transformer (bsd3, control, library, monadic-regions)2011-09-23BasVanDijk
registry5880.0data structure for assembling components (control, library, mit)2019-08-06etorreborre
registry-hedgehog2190.0utilities to work with Hedgehog generators and `registry` (control, library, mit)2019-07-11etorreborre
rematch1190.0A simple api for matchers (control, library, mit)2013-05-19TomCrayford
rematch-text570.0`rematch` matchers for Data.Text (control, library, mit)2013-05-19TomCrayford
remote-monad310.0An parametrizable Remote Monad, and parametrizable Applicative Functor (bsd3, control, library)2016-02-08AndyGill
representable-profunctors (deprecated in favor of profunctors)2790.0This package has been absorbed into profunctor-extras. (bsd3, categories, control, deprecated, library)2013-01-07EdwardKmett
request-monad700.0A transformer for generic requests (control, library, mit)2014-06-27nahiluhmot
resource-effect430.0A port of the package 'resourcet' for extensible effects. (bsd3, control, effect, library)2014-01-05ClarkGaebel
resource-pool-monad220.0A monadic interface for resource-pool (control, library, mit)2015-10-24srijs
resource-simple310.0Allocate resources which are guaranteed to be released. (bsd3, control, library)2012-03-02ShaneOBrien
resumable-exceptions410.0A monad transformer for resumable exceptions (control, error-handling, failure, library, monads, reactivity)2010-09-20NicolasFrisby
retry14882.5Retry combinators for monadic actions that may fail (bsd3, control, library)2019-10-11MichaelXavier, OzgunAtaman
rev-state550.0Reverse State monad transformer (bsd3, control, library)2016-02-01DanBurton
rex1620.0A quasi-quoter for typeful results of regex captures. (bsd3, control, library)2016-06-03MichaelSloan
rio5111.25A standard library for Haskell (control, library, mit)2019-08-26MichaelSnoyman
rio-orphans1110.0Orphan instances for the RIO type in the rio package (control, library, mit)2018-06-19MichaelSnoyman
rmonad1850.0Restricted monad library (bsd3, control, library)2013-12-23GaneshSittampalam
safe-buffer-monad260.0A monadic buffer resilient to exceptions (bsd3, control, library)2018-06-17dcastro
safe-exceptions3042.25Safe, consistent, and easy exception handling (control, library, mit)2018-01-18FrancescoMazzoli, MichaelSnoyman
safe-exceptions-checked362.0Safe, checked exceptions (bsd3, control, library)2017-01-28mitchellwrosen
scc2470.0Streaming component combinators (combinators, concurrency, control, library, program)2016-06-19MarioBlazevic
schonfinkeling250.0Transformation of n-ary functions to unary functions (bsd3, control, library)2011-10-03DenisDefreyne
selective992.25Selective applicative functors (control, library, mit)2019-07-08snowleopard
semi-iso1160.0Weakened partial isomorphisms, reversible computations. (control, data, library, mit)2014-12-12pawel834
semigroupoid-extras2860.0Semigroupoids that depend on PolyKinds (bsd3, control, library)2015-05-15EdwardKmett
semigroupoids14252.5Semigroupoids: Category sans id (bsd3, comonads, control, library)2019-08-27EdwardKmett, EricMertens, ryanglscott
sessions2860.0Session Types for Haskell (control, library)2008-07-18MatthewSackman
sessiontypes510.0Session types library (control, gpl, library, program)2018-01-13ferdinandvw
sessiontypes-distributed430.0Session types distributed (control, gpl, library)2018-01-13ferdinandvw
shade1100.0A control structure used to combine heterogenous types with delayed effects. (bsd3, control, library)2017-05-20fredefox
shared-fields1070.0a tiny library for using shared lens fields (bsd3, control, library)2015-07-20Intolerable
shortcircuit260.0Short-circuit values and expressions. (bsd3, control, data, library)2010-10-14AristidBreitkreuz
simple-effects3842.0A simple effect system that integrates with MTL (bsd3, control, library)2018-11-19darwin226
simple-observer230.0The Observer pattern (bsd3, control, library)2009-11-11AndyGimblett
simple-sessions640.0A simple implementation of session types (bsd3, control, library)2013-10-10JesseTov
sink (deprecated)380.0An alternative to lazy I/O that doesn't conflate execution with evaluation (control, data, deprecated, library, mit, system)2011-08-27JakeMcArthur
skulk660.0Eclectic collection of utility functions (control, library, mit)2016-06-05geekyfox
sousit370.0Source/Sink/Transform: An alternative to lazy IO and iteratees. (bsd3, control, library)2012-09-16MarioSiegenthaler
spawn490.0Tiny library for concurrent computations (bsd3, concurrency, concurrent, control, library)2011-10-09KeeganMcAllister
speculation-transformers390.0Merged into 'speculation'. Use that instead. (bsd3, control, library)2011-01-19EdwardKmett
stack-hpc-coveralls1160.0Initial project template from stack (control, library, program)2016-09-01rubik
state-bag270.0Monad transformers for holding bags of state. (bsd3, control, library)2016-07-22RobinKay
state-plus1040.0MonadPlus for StateT (bsd3, control, library)2017-04-16BorisSukholitko
stateWriter1750.0A faster variant of the RWS monad transformers. (bsd3, control, library)2018-01-10SimonMarechal
statestack1590.0Simple State-like monad transformer with saveable and restorable state (bsd3, control, library)2016-01-18BrentYorgey, RyanYates, jeffreyrosenbluth, bergey
static-closure220.0Serialisable static pointers to functions (bsd3, control, library)2018-01-17clinton
stm-supply350.0STM wrapper around Control.Concurrent.Supply. (bsd3, control, library)2016-11-19jmc41493
stopwatch1760.0A simple stopwatch utility (bsd3, control, library)2019-05-01debugito
stream-monad1170.0Simple, Fair and Terminating Backtracking Monad (bsd3, control, library, monads)2012-09-10SebastianFischer
streaming-eversion1680.0Translate pull-based stream folds into push-based iteratees. (bsd3, control, library)2018-05-12DanielDiazCarrete
streamly2002.25Beautiful Streaming, Concurrent and Reactive Composition (bsd3, concurrency, control, library, reactivity, streaming)2019-03-28harendra
streamproc1130.0Stream Processer Arrow (bsd3, control, library)2013-04-05PeterSimons
streams4492.0Various Haskell 2010 stream comonads (bsd3, comonads, control, library)2016-06-15EdwardKmett, ryanglscott
strict-concurrency1520.0Strict concurrency abstractions (bsd3, control, library)2018-10-09DonaldStewart, YitzGale
strict-identity300.0Strict Identity Monad, handy for writing fast code! (bsd3, control, library)2014-01-12CarterSchonwald
strict-writer (deprecated in favor of writer-cps-mtl)810.0A stricter writer, which uses StateT in order to avoid space leaks. (control, deprecated, library, mit)2017-02-10oisdk
strictly240.0Combinators for strictifying functions (bsd3, control, library)2013-08-14DanBurton
stt540.0A monad transformer version of the ST monad (control, library, mit)2016-11-06mckeankylej
sub-state250.0Get the total, put a single element (bsd3, control, library)2015-09-03athanclark
subhask502.0Type safe interface for programming in subcategories of Hask (algebra, bsd3, categories, control, library)2015-09-01MikeIzbicki
successors440.0An applicative functor to manage successors (control, library, mit)2017-12-31JoachimBreitner
supervisor360.0Control an internal monad execution for trace generation, backtrakcking, testing and other purposes (bsd3, control, library)2013-12-31AlbertoCorona
synchronous-channels392.0Synchronous communication channels (bsd3, concurrency, control, library)2015-07-07JesseTov
tagged-exception-core500.0Reflect exceptions using phantom types. (bsd3, control, error-handling, exceptions, failure, library, monad, monads, phantom-types)2016-02-02PeterTrsko
tagged-identity630.0Trivial monad transformer that allows identical monad stacks have different types (bsd3, control, library)2019-06-09mrkkrp
tagshare450.0TagShare - explicit sharing with tags (bsd3, control, library)2012-08-01JonasDuregard
takahashi750.0create slide for presentation. (control, library, mit)2015-07-14outoftune
tardis612.0Bidirectional state monad transformer (bsd3, control, library)2016-04-25DanBurton
telega4820.0Telegram Bot API binding (control, data, library, mit)2019-05-05iokasimovmt
threads-pool250.0A library to operate with pool of haskell's IO threads (bsd3, control, library)2010-11-08IlyaPortnov
time-machine260.0A library to mock the current time. (bsd3, control, library)2017-11-26y_taka_23
time-out430.0Timers, timeouts, alarms, monadic wrappers (control, library, monad, public-domain, time, timeout)2016-05-30akrasner
time-warp942.0Distributed systems execution emulation (control, library, mit, network)2017-03-18jagajaga, gromak, volhovm, martoon, serokell
timeout580.0Generalized sleep and timeout functions (concurrency, control, library, mit)2014-08-02FedorGogolev
timeout-control410.0Updatable timeouts as a Monad transformer (bsd3, concurrency, control, library)2015-08-31NathanHowell
timers-tick1390.0tick based timers (bsd3, control, library)2019-05-28fffaaa
to590.0Simple, safe, boring type conversions (bsd3, control, library)2019-08-18Artyom
tonalude370.0A standard library for Tonatona framework. (control, library, mit, tonatona)2019-01-26arowM
total930.0Exhaustive pattern matching using lenses, traversals, and prisms (bsd3, control, library)2017-02-20GabrielGonzalez
trace1080.0A monad transformer for tracing provenience of errors (control, library, mit)2015-04-15JonSterling
transactional-events240.0Transactional events, based on Concurrent ML semantics (bsd3, control, library)2008-10-10RyanIngram
transformers7372.75Concrete functor and monad transformers (bsd3, control, library)2019-02-02RossPaterson
transformers-abort1420.0Error and short-circuit monad transformers (bsd3, control, library)2016-12-09MikhailVorozhtsov
transformers-base7820.0Lift computations from the bottom of a transformer stack (bsd3, control, library)2018-03-31MikhailVorozhtsov
transformers-bifunctors572.0Bifunctors over monad transformers. (bsd3, control, functors, library)2017-07-16JacobStanley
transformers-compose280.0Arrow-like / category-like composition for transformers. (bsd3, control, library, monads)2010-11-01AristidBreitkreuz
transformers-continue272.0Control flow data type and monad transformer. (bsd3, control, library)2017-03-16nhibberd
transformers-convert260.0Sensible conversions between some of the monad transformers (bsd3, control, library)2014-05-30jcristovao
transformers-eff840.0An approach to managing composable effects, ala mtl/transformers/extensible-effects/Eff (bsd3, control, library)2018-03-22OliverCharles
transformers-free (deprecated in favor of free)390.0Free monad transformers (bsd3, control, deprecated, library)2012-11-01GabrielGonzalez
transformers-lift962.0Ad-hoc type classes for lifting (bsd3, control, library)2019-05-23int_index
transformers-runnable280.0A unified interface for the run operation of monad transformers (bsd3, control, library)2012-10-12JanBessai
transient3932.5composing programs with multithreading, events and distributed computing (concurrency, control, library, mit)2019-06-09AlbertoCorona, geraldus
transient-universe4620.0Remote execution and map-reduce: distributed computing for Transient (control, distributed-computing, library, mit, program)2018-04-15AlbertoCorona, geraldus
tree-monad770.0Non-Determinism Monad for Tree Search (bsd3, control, library, monads)2010-10-09SebastianFischer
trivia260.0The trivial monad and comonad (bsd3, control, library)2014-03-02FumiakiKinoshita
tubes2140.0Write stream processing computations with side effects in a series of tubes. (control, gpl, library, streaming)2016-08-16gatlin
tuple-lenses560.0Stock FieldN combos and generators (bsd3, control, library)2013-03-28JonathanFischoff
tweak410.0A library for incremental computing (bsd3, control, library)2013-10-05JonathanFischoff
type-operators880.0Various type-level operators (bsd3, control, library)2019-03-09Shou
uberlast280.0Generate overloaded lenses from plain data declaration (bsd3, control, library)2014-11-27FumiakiKinoshita
unexceptionalio1450.0IO without any non-error, synchronous exceptions (control, library)2018-05-08StephenWeber
unexceptionalio-trans370.0A wrapper around UnexceptionalIO using monad transformers (control, library)2018-05-08StephenWeber
unliftio6702.5The MonadUnliftIO typeclass for unlifting monads to IO (batteries included) (control, library, mit)2019-07-12MichaelSnoyman
unliftio-core3482.0The MonadUnliftIO typeclass for unlifting monads to IO (control, library, mit)2018-08-28MichaelSnoyman
unliftio-pool740.0Data.Pool generalized to MonadUnliftIO. (bsd3, control, data, database, library, network)2018-05-28BardurArantsson
unordered-containers-rematch270.0Rematch support for unordered containers (control, library, mit)2013-05-20TomCrayford
unpack-funcs1020.0Monad transformers that mirror worker-wrapper transformations. (bsd3, control, library)2013-04-18LouisWasserman
unsafe1090.0Unified interface to unsafe functions (bsd3, control, library)2013-04-21HenningThielemann
unsequential750.0An extension removing the sequentiality from monads (control, library, mit)2017-03-20NikitaVolkov
uu-interleaved630.0An interleaving combinator for use with applicative style implementations. (applicative, control, library, mit, parsing, text)2018-08-06DoaitseSwierstra
validationt652.0Straightforward validation monad. (bsd3, control, library)2018-07-10typeable
var-monad650.0The VarMonad typeclass, generalizing types of references. (apache, control, library)2017-08-29chris_martin
variables410.0Monads with variables, without deep magic (control, library, mit)2014-08-18alynn
varying3092.0FRP through value streams and monadic splines. (animation, control, frp, library, mit, program)2019-09-12SchellScivally
vector-strategies700.0A parallel evaluation strategy for boxed vectors (bsd3, control, library)2012-11-13ThomasDuBuisson
views (deprecated in favor of definitive-base)270.0Views allow you to run a State monad on part of a state. (bsd3, control, deprecated, library, monad)2013-03-15MarcCoiffier
vinyl-utils1590.0Utilities for vinyl (bsd3, control, library)2017-12-28mjmrotek
watchdog730.0Simple control structure to re-try an action with exponential backoff (bsd3, control, library)2017-06-06JanVornberger
weighted510.0Writer monad which uses semiring constraint (control, library, mit)2017-02-13oisdk
weighted-search330.0A weighted nondeterministic search monad (bsd3, control, library)2013-03-13LukePalmer
wires862.0Functional reactive programming library (bsd3, control, frp, library)2018-04-15esz
with330.0Simple open product type (bsd3, control, data, library)2018-09-16iokasimovmt
withdependencies2130.0Run computations that depend on one or more elements in a stream. (control, gpl, library)2019-09-16SimonMarechal
wl-pprint-extras3730.0A free monad based on the Wadler/Leijen pretty printer (bsd3, control, library, monads, text)2015-06-09EdwardKmett, NathanielFilardo
wl-pprint-terminfo5580.0A color pretty printer with terminfo support (bsd3, control, library, monads, text)2016-06-22EdwardKmett, NathanielFilardo
writer-cps-exceptions490.0Control.Monad.Catch instances for the stricter CPS WriterT and RWST (bsd3, control, library)2019-03-07minad
writer-cps-full250.0WriteT and RWST monad transformers (Reexport with all dependencies) (bsd3, control, library)2017-01-19minad, louispan
writer-cps-lens290.0Lens instances for the stricter CPS WriterT and RWST (bsd3, control, library)2017-03-06minad, louispan
writer-cps-monads-tf440.0MonadWriter orphan instances for writer-cps-transformers (bsd3, control, library)2017-01-16minad
writer-cps-morph620.0MFunctor instance for CPS style WriterT and RWST (bsd3, control, library)2017-03-06minad, louispan
writer-cps-mtl1610.0MonadWriter orphan instances for writer-cps-transformers (bsd3, control, library)2019-03-07minad
writer-cps-transformers2110.0WriteT and RWST monad transformers (bsd3, control, library, mit)2019-04-29minad
xml-html-conduit-lens1520.0Optics for xml-conduit and html-conduit (bsd3, control, library)2018-06-14MatveyAksenov
zoom-refs440.0Zoom (~ Functor) and pairing (~ Applicative) for mutable references. (bsd3, control, library)2016-05-23mjmrotek