lichess-org / lila
Open source server powering lichess.org, a free, ad-free online chess platform with realtime games, analysis, and tournaments.
lichess-org / lila
NixOS / nix
Nix, the purely functional package manager
roc-lang / roc
A fast, friendly, functional language.
grame-cncm / faust
Functional programming language for signal processing and sound synthesis
vavr-io / vavr
vΚvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
jank-lang / jank
jank is the native Clojure dialect with seamless C++ interop.
hemanth / functional-programming-jargon
Jargon from the functional programming world in simple terms!
scala / scala
Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3
kickstarter / ios-oss
Kickstarter for iOS. Bring new ideas to life, anywhere.
AllThingsSmitty / must-watch-javascript
JavaScript talks you have to see π on functional programming, performance, frameworks, React, debugging, leveling up, and more!
louthy / language-ext
C# pure functional programming framework - come and get declarative!
arrow-kt / arrow
The perfect companion for your Kotlin journey - Inspired by functional, data-oriented and concurrent programming
carp-lang / Carp
A statically typed lisp, without a GC, for real-time applications.
kickstarter / android-oss
Kickstarter for Android. Bring new ideas to life, anywhere.
apache / groovy
Apache Groovy: A powerful multi-faceted programming language for the JVM platform
samuelmtimbo / unit
Next Generation Visual Programming System
scalaz / scalaz
Principled Functional Programming in Scala
zio / zio
ZIO β A type-safe, composable library for async and concurrent programming in Scala
dry-python / returns
Make your functions return something meaningful, typed, and safe!
dotnet / fsharp
The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio
thi-ng / umbrella
β± Broadly scoped ecosystem & mono-repository of 215 TypeScript projects (and ~185 examples) for general purpose, functional, data driven development
Suor / funcy
A fancy and practical functional tools lib
grain-lang / grain
The Grain compiler toolchain and CLI. Home of the modern web staple. πΎ
milessabin / shapeless
Generic programming for Scala
sfermigier / awesome-functional-python
A curated list of awesome things related to functional programming in Python.
typelevel / fs2
Compositional, streaming I/O library for Scala
luafun / luafun
Lua Fun is a high-performance functional programming library for Lua designed with LuaJIT's trace compiler in mind.
typelevel / doobie
Functional JDBC layer for Scala.
darklang / dark
Darklang main repo, including language, backend, and infra
sharkdp / cube-composer
A puzzle game inspired by functional programming
IBM / fp-go
Functional programming library for Go 1.24+, inspired by fp-ts. Uses generic type aliases for a clean, composable API. Provides Option, Either, Result, IO, IOResult, Reader, and ReaderIOResult monads, plus optics (Lens, Prism, Traversal) for immutable data manipulation. Supports Functor, Applicative, and Monad abstractions with do-notation-style
monix / monix
Asynchronous, Reactive Programming for Scala and Scala.js.
coalton-lang / coalton
Coalton is an efficient, statically typed functional programming language that supercharges Common Lisp.
selfrefactor / rambda
Typescript focused FP library similar to Remeda and Ramda
LuxLang / lux
The Lux Programming Language
optics-dev / Monocle
Optics library for Scala
typelevel / skunk
A data access library for Scala + Postgres.
japgolly / scalajs-react
Facebook's React on Scala.JS
softwaremill / tapir
Rapid development of self-documenting APIs
ring-lang / ring
A simple, lightweight, flexible, embeddable, portable and multi-paradigm dynamic programming language for developing applications, tools, and domain-specific languages
true-myth / true-myth
Safe and idiomatic TypeScript types to handle null, error, and async code handling: Maybe, Result, and Task types that are really nice.
hazelgrove / hazel
Hazel, a live functional programming environment with typed holes
mybatis / mybatis-dynamic-sql
SQL DSL (Domain Specific Language) for Kotlin and Java. Supports rendering for MyBatis or Spring JDBC Templates
AnswerDotAI / fastcore
Python supercharged for the fastai library
MLton / mlton
The MLton repository
eslint-functional / eslint-plugin-functional
ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.
ghostdogpr / caliban
Functional GraphQL library for Scala
egison / egison
The Egison Programming Language
kalandra-lang / kalandra
Kalandra is a functional, parallel, distributed programming language.
typelevel / frameless
Expressive types for Spark.
dry-rb / dry-monads
Useful, common monads in idiomatic Ruby
domn1995 / dunet
C# discriminated union source generator
softwaremill / quicklens
Modify deeply nested case class fields
lichess-org / scalachess
Chess API written in scala. Immutable and free of side effects.
dbrattli / Expression
Functional programming for Python
ehmicky / wild-wild-path
π€ Object property paths with wildcards and regexps π΅
char0n / ramda-adjunct
Ramda Adjunct is the most popular and most comprehensive set of functional utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.
gvolpe / trading
π± Trading application written in Scala 3 that showcases an Event-Driven Architecture (EDA) and Functional Programming (FP)
metaopt / torchopt
TorchOpt is an efficient library for differentiable optimization built upon PyTorch.
Gabriella439 / grace
A prompt engineering functional programming language