| haskellPackages.haskell-tools-ast | Haskell AST for efficient tooling |
| haskellPackages.fillit | Flexible string substitution |
| haskellPackages.huffman | Pure Haskell implementation of the Huffman encoding algorithm |
| haskellPackages.brotli-conduit | Conduit interface for Brotli (RFC7932) compression |
| haskellPackages.her-lexer | A lexer for Haskell source code |
| haskellPackages.eveff | Efficient effect handlers based on evidence translation |
| haskellPackages.funcons-values | Library providing values and operations on values in a fixed universe |
| haskellPackages.data-extend-generic | Extend Haskell data or newtype like in OOP languages |
| haskellPackages.hist-pl-types | Types in the historical dictionary of Polish |
| haskellPackages.haskell-debugger | A step-through debugger for GHC Haskell |
| haskellPackages.http-client-websockets | Glue code for http-client and websockets |
| haskellPackages.atuin | Embedded Turtle language compiler in Haskell, with Epic output |
| haskellPackages.haha | A simple library for creating animated ascii art on ANSI terminals |
| haskellPackages.hqcsim | A library for simulating quantum circuits |
| haskellPackages.digestive-functors-aeson | Run digestive-functors forms against JSON |
| haskellPackages.happy_1_20_1_1 | Happy is a parser generator for Haskell |
| haskellPackages.fgl-arbitrary | QuickCheck support for fgl |
| haskellPackages.haskelldb-flat | An experimental HaskellDB back-end in pure Haskell (no SQL) |
| haskellPackages.cabal-dir | show dist dir of 'cabal copy/install' |
| haskellPackages.fay | A compiler for Fay, a Haskell subset that compiles to JavaScript |
| haskellPackages.freckle-http | Toolkit for making HTTP requests |
| haskellPackages.d-bus | Permissively licensed D-Bus client library |
| haskellPackages.lambdabot-novelty-plugins | Novelty plugins for Lambdabot |
| haskellPackages.acts | Semigroup actions and torsors |
| haskellPackages.Win32-services | Windows service applications |
| haskellPackages.fractal | Draw Newton, Julia and Mandelbrot fractals |
| haskellPackages.lathe | Pure incremental byte parser |
| haskellPackages.hout | Non-interactive proof assistant monad for first-order logic |
| haskellPackages.jordan | JSON with Structure |
| haskellPackages.bluefin-internal | The Bluefin effect system, internals |
| haskellPackages.haskell-lsp-types | Haskell library for the Microsoft Language Server Protocol, data types |
| haskellPackages.essence-of-live-coding-pulse-example | General purpose live coding framework - pulse backend example |
| haskellPackages.graphmod-plugin | A reimplementation of graphmod as a source plugin |
| haskellPackages.ghc-dump-util | Handy tools for working with ghc-dump dumps |
| haskellPackages.connection-pool | Connection pool built on top of resource-pool and streaming-commons |
| haskellPackages.hedis-envy | |
| haskellPackages.aeson-default | Apply default value to FromJSON instacnes' Maybe fields |
| haskellPackages.c-enum | To make a type corresponding to an enum of C language |
| haskellPackages.array-primops | Extra foreign primops for primitive arrays |
| haskellPackages.hie-core | The core of an IDE |
| haskellPackages.hell | Haskell-based shell scripting language |
| haskellPackages.highlighter2 | source code highlighting |
| haskellPackages.hpython | Python language tools |
| haskellPackages.language-toolkit | A set of tools for analyzing languages via logic and automata |
| haskellPackages.dao | Dao is meta programming language with its own built-in interpreted language, designed with artificial intelligence applications in mind |
| haskellPackages.hstox | A Tox protocol implementation in Haskell |
| haskellPackages.hls-call-hierarchy-plugin | Call hierarchy plugin for Haskell Language Server |
| haskellPackages.cabal-debian_5_4_1 | Create a Debianization for a Cabal package |
| haskellPackages.cndict | Chinese/Mandarin <-> English dictionary, Chinese lexer |
| haskellPackages.commander-cli | A command line argument/option parser library |
| haskellPackages.agda-snippets-hakyll | Literate Agda support using agda-snippets, for Hakyll pages |
| haskellPackages.alternative-vector | Use vectors instead of lists for many and some |
| haskellPackages.bounded-qsem | Bounded quantity semaphores |
| haskellPackages.logentries | Request logger middleware for Logentries |
| haskellPackages.WaveFront | Parsers and utilities for the OBJ WaveFront 3D model format |
| haskellPackages.codec-beam | Erlang VM byte code assembler |
| haskellPackages.css | Minimal monadic CSS DSL |
| haskellPackages.containers-unicode-symbols | Unicode alternatives for common functions and operators |
| haskellPackages.forms-data-format | Parse and serialize FDF, the Forms Data Format |
| haskellPackages.libyaml | Low-level, streaming YAML interface |
| haskellPackages.gtk2hs-cast-gtk | A type class for cast functions of Gtk2hs: gtk package |
| haskellPackages.cve | simple and efficient cve datatype |
| haskellPackages.ghcjs-codemirror | Installs CodeMirror JavaScript files |
| haskellPackages.hybrid-vectors | Hybrid vectors e.g. Mixed Boxed/Unboxed vectors |
| haskellPackages.lmdb-high-level | Higher level API for working with LMDB |
| haskellPackages.haskelldb-hdbc | HaskellDB support for HDBC |
| haskellPackages.ghcjs-dom | DOM library that supports both GHCJS and GHC |
| haskellPackages.dbus-app-launcher | Simple app launcher for D-Bus |
| haskellPackages.hls-gadt-plugin | Convert to GADT syntax plugin |
| haskellPackages.dependent-state | Control structure similar to Control.Monad.State, allowing multiple nested states, distinguishable by provided phantom types. |
| haskellPackages.language-c-inline | Inline C & Objective-C code in Haskell for language interoperability |
| haskellPackages.debug-me | secure remote debugging |
| haskellPackages.abc-puzzle | Generate instances of the ABC Logic Puzzle |
| haskellPackages.finite-field | Finite Fields |
| haskellPackages.eap | Extensible Authentication Protocol (EAP) |
| haskellPackages.hcron | A simple job scheduler, which just runs some IO action at a given time |
| haskellPackages.build-env | Compute, fetch and install Cabal build plans into a local environment |
| haskellPackages.bytearray-parsing | Parsing of bytearray-based data |
| haskellPackages.asn1-parse | Simple monadic parser for ASN1 stream types |
| haskellPackages.base64 | A modern Base64 library |
| haskellPackages.java-bridge-extras | Utilities for working with the java-bridge package |
| haskellPackages.crucible | Crucible is a library for language-agnostic symbolic simulation |
| haskellPackages.bsd-sysctl | Access to the BSD sysctl(3) interface |
| haskellPackages.ghc-lib-parser_9_14_1_20251220 | The GHC API, decoupled from GHC versions |
| haskellPackages.jose_0_12 | JSON Object Signing and Encryption (JOSE) and JSON Web Token (JWT) library |
| haskellPackages.ihaskell-juicypixels | IHaskell - IHaskellDisplay instances of the image types of the JuicyPixels package |
| haskellPackages.emoji | emoji utility |
| haskellPackages.idna2008 | Converts Unicode hostnames into ASCII |
| haskellPackages.koji-tool | Koji CLI tool for querying tasks and installing builds |
| haskellPackages.hack-middleware-gzip | Automatic gzip compression of responses. (deprecated) |
| haskellPackages.data-default-generics | A class for types with a default value |
| haskellPackages.dom-parser | Simple monadic DOM parser |
| haskellPackages.ghc-prim_0_13_0 | GHC primitives |
| haskellPackages.hse-cpp | Preprocess+parse haskell code |
| haskellPackages.happstack-auth | A Happstack Authentication Suite |
| haskellPackages.espial | Espial is an open-source, web-based bookmarking server |
| haskellPackages.autoproc | EDSL for Procmail scripts |
| haskellPackages.haskell-tools-builtin-refactorings | Refactoring Tool for Haskell |
| haskellPackages.labyrinth | A complicated turn-based game |
| haskellPackages.http2-grpc-types | Types for gRPC over HTTP2 common for client and servers |