lichess-org / lila

♞ lichess.org: the forever free, adless and open source chess server ♞

hemanth / functional-programming-jargon

Jargon from the functional programming world in simple terms!

NixOS / nix

Nix, the purely functional package manager

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 👀 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

vavr-io / vavr

vʌvr (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.

roc-lang / roc

A fast, friendly, functional language.

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 — 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

⛱ 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. 🌾

milessabin / shapeless

Generic programming for Scala

jank-lang / jank

jank is the native Clojure dialect with seamless C++ interop.

grame-cncm / faust

Functional programming language for signal processing and sound synthesis

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

nerevu / riko

A Python stream processing engine modeled after Yahoo! Pipes

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

🤠 Object property paths with wildcards and regexps 🌵

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

💱 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.