Data

Tools

Indexes

Applications

Experiments

Awesome

An open API service indexing awesome lists of open source software.

Functional programming

In computer science, functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that map values to other values, rather than a sequence of imperative statements which update the running state of the program.

https://github.com/timonson/bashfunc

A small Bash library for functional programming - map, filter, reduce and more

bash fp functional functional-programming map reduce shell

Last synced: 04 Jul 2025

https://github.com/peterperhac/monad-transformers

Code, etc for a meetup event. Monad transformers talk I gave at Brighton.

fp functional-programming monad scala

Last synced: 04 Jul 2025

https://github.com/jiangweixian/functional-md

render markdown functional

functional-programming github markdown

Last synced: 13 Apr 2025

https://github.com/mnie/resulttype

ResultType implementation in C#

csharp functional-programming result-type

Last synced: 11 Mar 2026

https://github.com/neverendingqs/pyiterable

Python comes with some nice built-in methods for operating on iterables, but it can get messy really quickly if you want to transform an iterable multiple times. Write more expressive code by chaining built-in transformations with this module.

functional-programming python

Last synced: 24 Apr 2025

https://github.com/jahed/promises

Composable Functions for Promises

async functional-programming javascript promise

Last synced: 17 Mar 2025

https://github.com/adam-rocska/invertible-typescript

A library for creating and managing invertible functions and type-safe pipelines in TypeScript.

composition compositionality functional functional-programming inverse invertible pipe pipeline proverse pure stateless strict typesafe typescript

Last synced: 09 Apr 2025

https://github.com/muhammadhassanraza25/quiz-app

I made this Quiz App using HTML, CSS & JavaScript. In end of the quiz this Quiz App also shows user's result.

css-flexbox css-grid css3 functional-programming html5 javascript quiz quiz-application

Last synced: 15 Feb 2026

https://github.com/baileympearson/iterable-ts

A Typescript library providing flexible and composable iterator operations.

functional-programming iterables typescript

Last synced: 13 Feb 2026

https://github.com/neiljbrown/java-functional-interface-examples

A set of Java code examples illustrating the set of functional interfaces that were added to the JDK's java.util.function package in Java 8+.

examples functional-programming java

Last synced: 11 Feb 2026

https://github.com/danielres/mytribe

a directory of friends for local/remote communities | highly experimental | ORM-less | nodejs + react + redux | docker-cloud CD + CI | lean event-sourcing

ci create-react-app docker docker-cloud docker-compose droplet functional functional-programming jest knexjs nodejs orm-less react redux

Last synced: 11 Apr 2026

https://github.com/mallozup/doghub

a functional stale bot for Github Issue and PRs.

bot clojure data-driven functional-programming github monitor stale

Last synced: 09 Feb 2026

https://github.com/naamanu/l-lang

A very minimal functional programming language implementation

functional-programming haskell math

Last synced: 26 Feb 2026

https://github.com/meetzaveri/elite-async

πŸ› οΈ Zero dependencies, pure vanilla, slim and compact set of async utilities

async callbacks control-flow functional-programming javascript

Last synced: 11 Mar 2025

https://github.com/mooerslab/emacsatx4may2022

Brief introduction to functional programming in Emacs Lisp

elisp emacs functional-programming

Last synced: 08 Jan 2026

https://github.com/amitayh/monadic-parser

Example parsers in Scala with monadic composition

functional-programming parser-combinators scala

Last synced: 10 Jan 2026

https://github.com/bertrand31/api-rate-limiter

A sample HTTP API using a custom rate limiter written in Scala

api cats functional-programming http4s rate-limiter scala

Last synced: 16 May 2025

https://github.com/segfaultax/pyeither

An implementation of Data.Either from Haskell in Python

applicative either functional-programming functional-python functor haskell monad python

Last synced: 25 Feb 2026

https://github.com/tralahm/iot-system

A complete hardware agnostic IoT system for monitoring home temperatures written in scala

akka-actors functional-programming iot-application sbt scala tralahm tralahtek

Last synced: 31 May 2026

https://github.com/federicobruzzone/caml-writer

CamlWriter is a terminal-based text editor developed using the OCaML.

functional-programming ocaml terminal-based text-editor

Last synced: 07 Feb 2026

https://github.com/gibbok/files-importer

files-importer is a Node.js command line tool, written in functional programming style, which synchronously copy the contents of a directory (include subdirectories recursively) to another location without creating duplicate files. It can be used to import only images and videos that have not already been imported from a camera or a memory card.

compare-data compare-files diff filesystem functional-programming

Last synced: 31 Jan 2026

https://github.com/hbomb79/advent-of-code

Advent of Code solutions in Scala3 (2022), OCaml (2023) and Elixir (2024)

advent-of-code advent-of-code-2022 advent-of-code-scala elixir functional-programming ocaml scala scala3

Last synced: 01 Mar 2025

https://github.com/bohdanmoroziuk/code-snippets

This is my personal knowledge-base. Here you'll find code-snippets, technical documentation, and command reference for various tools, and technologies.

cheat-sheets code-snippets front-end-development functional-programming knowledge-base oop react rest-api software-architecture software-development testing typescript vue3

Last synced: 13 Apr 2026

https://m-aminalizadeh.github.io/Awesome-books-collection/

This project is about building a web-app to store your books collection in browser's local storage with CRUD feature.

bootstrap5 crud-application es6-javascript eslint functional-programming gh-pages html-css-javascript javascript lighthouse localstorage npm oop responsive-website routes spa ux-ui

Last synced: 02 Apr 2025

https://github.com/lukaszcz/hcpl

A prototypical proof checker and programming language based on illative combinatory logic

combinatory-logic functional-programming proof-checking theorem-proving

Last synced: 29 Jan 2026

https://github.com/rgeraldporter/inquiry-monad

Inquiry is a process flow that allows one ask multiple questions about a subject value. This process grants observability over all results, returning a collection of all successes, failures, and the original subject.

aggregate chain either-monad functional functional-programming monad observability promise validation

Last synced: 29 Jan 2026

https://github.com/sczyh30/samsara-aquarius

:zap:Samsara Aquarius - a technology sharing web application written in Scala

akka functional-programming play-framework scala slick web-application

Last synced: 06 Feb 2026

https://github.com/12joan/rubio

Write pure, functional code that encapsulates side effects using the IO monad (and friends) in Ruby

functional-programming io-monad maybe-monad state-monad

Last synced: 28 Jan 2026

https://github.com/coderaiser/zames

converts callback-based functions to Promises and apply currying to arguments

converts-callback curry functional functional-programming nodejs promisify

Last synced: 01 Jul 2025

https://github.com/ariebovenberg/calls

Simple, typed, composable tools for callables.

composable functional-programming functools mypy python

Last synced: 27 Oct 2025

https://github.com/jeffersonribeiro/html5-canvas-tetris

Built by following Math Math Method Tutorial

canvas functional-programming html5

Last synced: 16 May 2025

https://github.com/qualityshepherd/splog

A simple, single page, blog written in functional, vanilla js that supports markdown, rss, podcasts and deploys to github pages (github.io).

ava blog e2e functional-programming github-pages markdown marked pagination puppeteer rss search spa testing unit-test vanilla-js

Last synced: 22 Nov 2025

https://github.com/jezek/funson

another approach to functional json for fun

experimental functional-programming golang json programming-language

Last synced: 23 Feb 2026

https://github.com/imrafaelmerino/vertx-effect

Vertx-effect brings functional effects to the Vert.x ecosystem and is inspired by Erlang’s actor model. Its manifesto emphasizes principles such as maximizing the use of verticles for scalability, maintaining single responsibility for each verticle, and prioritizing simplicity to enhance reliability and ease debugging.

erlang functional-programming java json-values persistent-data-structure vertx vertx-values vertx3

Last synced: 27 Feb 2026

https://github.com/univalence/spark-plumbus

Collection of tools for Scala Spark

functional-programming scala spark

Last synced: 17 Apr 2026

https://github.com/aabs/fifthlang-old

Fifth is a multi-paradigm programming language featuring .NET compatibility, efficient functional programming with seamlessly embedded knowledge graphs

compiler dotnet functional-programming knowledge-graph rdf

Last synced: 17 Jan 2026

https://github.com/pertsevds/predicate_dispatch

Predicative dispatch decorator for Python, based on idea from book "Functional Programming in Python"

dispatch functional-programming python

Last synced: 11 Feb 2026

https://github.com/fernandoareias/web-server-erl

Web server implemented with erlang and staged event-driven architecture

eda erlang event-driven-architecture functional-programming seda staged-event-driven-architecture webserver

Last synced: 25 Feb 2026

https://github.com/sandromaglione/supabase-ts

Use supabase with Functional Programming and fp-ts

fp-ts functional-programming io-ts javascript supabase supabase-js typescript

Last synced: 11 Feb 2026

https://github.com/taharachedi/bank

πŸ’Ό Client Management System in C++ – Easily manage, update, and organize client data with a simple console interface! πŸ“‚πŸ”§

algorithms console-application console-game enums files functional-programming problem-solving string-manipulation structu

Last synced: 14 Jun 2025

https://github.com/kemsky/stream

ActionScript collection library with modern functionality

actionscript adobe-air adobe-flash adobe-flex collections functional-programming

Last synced: 05 Feb 2026

https://github.com/polytypic/sml-optics

Proof of concept optics library for Standard ML

functional-programming isomorphisms lenses optics prisms standard-ml traversals

Last synced: 01 Mar 2026

https://github.com/jottenlips/deprecated-jottenlips.github.io

πŸ“ƒ ReasonML markdown blog engine, turn an S3 bucket into a Github Pages blog

blog-engine experiment functional-programming jamstack javascript markdown ocaml react reason reasonml webpack

Last synced: 12 Feb 2026

https://github.com/daretodave/zurch

JavaScript library for common FP patterns

functional-programming functions tacit typescript-library

Last synced: 14 Feb 2026

https://github.com/aygp-dr/scheme-llm-toolkit

Composable Guile Scheme library for LLM integration featuring functional APIs, type-safe bindings, and meta-programming support for AI-powered development

functional-programming guile llm scheme

Last synced: 14 Feb 2026

https://github.com/eliphatfs/2us

Glueing functionals by `import __` for python!

functional-programming python

Last synced: 10 Jun 2026

https://github.com/rborovina/scala-minesweeper

This is a Scala implementation of the classic Minesweeper game. The project features different difficulty levels, the ability to save and load games, hints, and a scoring system that takes into account the number of bombs, hints used, elapsed time, and user actions.

functional-programming scala

Last synced: 02 Mar 2026

https://github.com/elm-athlete/elm-function

Function helpers for elm!

elm function functional-programming

Last synced: 11 Dec 2025

https://github.com/jderochervlk/fp-ts-fetch

fp-ts wrappers for fetch.

fp fp-ts functional-programming typescript

Last synced: 12 Feb 2026

https://github.com/sergio16t/funky-go

Functional Programming Package for Go Development.

functional-programming go golang utilities

Last synced: 22 Feb 2026

https://github.com/edgarberm/pills

A collection of fun JavaScript functions (ES6) πŸ˜ŽπŸŽ‰πŸŽˆ

functional functional-js functional-programming javascript pill

Last synced: 13 Oct 2025

https://github.com/vonzhou/scalaimpatient

Scala for the Impatient γ€ŠεΏ«ε­¦Scalaγ€‹η¬¬δΈ€η‰ˆδΉ ι’˜δ»£η 

functional-programming scala

Last synced: 16 Apr 2026

https://github.com/jeltsch/wflp-2019

A Process Calculus for Formally Verifying Blockchain Consensus Protocols (WFLP ’19 invited contribution)

blockchain distributed-computing formal-verification functional-programming higher-order-abstract-syntax process-calculus

Last synced: 24 Feb 2026

https://github.com/solangeug/lambdas-and-streams

Project based on Oracle's Introduction to Lambda Expressions and the Streams API MOOC.

functional-programming java-8 lambda-expressions oracle-mooc streams-api

Last synced: 09 May 2026

https://github.com/ldaniels528/lollypop

Lollypop is a development platform built to suit the needs of developers of small to medium software projects, and features an integrated database, web services, scenario-driven test suite, and more.

csv dataframe declarative-programming etl functional-programming java json json-parser jvm kafka lollypop matrix matrix-calculations matrix-multiplication reactive-programming scala scripting-language spark sql

Last synced: 28 Jan 2026

https://github.com/papilo-cloud/mern-skeleton

This skeleton application will encapsulate rudimentary features and a workflow that's repeated for most MERN applications.

crud expressjs functional-programming javascript mern-stack mongodb mongoose nodejs tailwindcss

Last synced: 27 Mar 2026

https://github.com/sajmoni/ts-elm

Elm types in TypeScript

elm fp functional-programming result typescript

Last synced: 15 Apr 2026

https://github.com/joggrdocs/funkai

A composable AI microframework built on ai-sdk, curried with funk-tional programming flair.

agents ai ai-sdk functional-programming microframework nodejs prompts typescript vercel-ai-sdk workflows

Last synced: 01 Apr 2026

https://github.com/noyzys/nautchkafe-vanish

A simple bukkit/spigot plugin 1.21 :: vanish moderation system.

adventure bukkit bukkit-plugin fp functional-programming java kyori spigot spigot-plugin vanish vanishing

Last synced: 05 Mar 2026

https://github.com/thinkswan/js-functional-programming-examples

Notes from Jeremy Fairbank's "Functional Programming Basics in ES6" talk.

functional-programming javascript

Last synced: 23 Jun 2026

https://github.com/imrafaelmerino/java-fun

java-fun simplifies Property-Based Testing in Java by providing powerful and composable Pseudo Random Generators. These generators enable the creation of diverse test cases effortlessly, making testing more effective and intuitive for developers.

functional-programming generator java jmeter property-based-testing

Last synced: 30 Jan 2026

https://github.com/arcanemage/javalaboratories-java-extensions

This is a library of utilities to encourage functional programming in Java, particularly for Java-8 developers but not exclusively.

functional-programming functor java-extensions lambda-expressions monad thread

Last synced: 14 Jan 2026

https://github.com/ortense/functors

A collection of dependency-free functors written in TypeScript, created to be type-safe, immutable, and lightweight.

either either-monad fp functional functional-programming functors history-management lazy lazy-evaluation maybe maybe-monad monad monads state state-pattern type-safe typescript typescript-library

Last synced: 16 Aug 2025

https://github.com/monksc/cacheskell

This is my functional programming language that looks like Haskell but it cache every function.

custom-language functional-programming haskell interpreter language programming-languages rust rust-lang

Last synced: 14 May 2026

https://github.com/ilankri/flap

A toy compiler from a functional programming language to MIPS assembly and Java bytecode (mirrored from https://gitlab.com/ilankri/flap)

compiler functional-programming jvm mips programming-language school-project

Last synced: 18 Apr 2026

https://github.com/ibrahimcesar/category-theory-for-the-javascript-typescript-developers

πŸ”’ Category Theory for JavaScript/TypeScript developers. An embedded DSL making functors, monads, and adjunctions explicit and manipulable.

adjunctions category-theory category-theory-for-programmers composition dsl educational fp-ts functional-programming functor javascript monad typescript

Last synced: 30 Jan 2026

https://github.com/wanderhuang/base-funcs

πŸ³δΈ€δΊ›ε‰η«―εΌ€ε‘ι€šη”¨ηš„ε·₯ε…·ε‡½ζ•°γ€‚ε‡½ζ•°εΌγ€ζ–‡ζ‘£εŒ–γ€ζ΅‹θ―•θ¦†η›–γ€ε·₯η¨‹εŒ–πŸ‘Š

functional-programming widgets

Last synced: 23 Apr 2025

https://github.com/crvouga/simon-says

Implementation of the game Simon Says. Test your memory by seeing how long of a button press sequence your can remember.

firebase functional-programming game-simon material-ui react redux-saga simon tonejs

Last synced: 17 Apr 2026

https://github.com/psychedelicshayna/language-learning

My place for storing learning resources and useful information about programming languages.

educational functional-programming haskell haskell-learning learning learning-functional-programming learning-resources playground

Last synced: 25 Aug 2025

https://github.com/egorkhaklin/glass

A pure functional language whose compiler is written in Glass and self-compiles to byte-identical C, carrying a from-scratch zero-knowledge STARK prover: write a function, get a proof of its result. Hindley-Milner types, effects, exhaustive matching.

algebraic-data-types compiler cryptography effect-system fri functional-programming hindley-milner interpreter pattern-matching programming-language programming-language-design refinement-types self-hosting stark type-inference type-system zero-knowledge zero-knowledge-proofs zk zk-stark

Last synced: 10 Jun 2026

Functional programming Awesome Lists
awesome-functional-python 113 awesome-fp-jobs 30 awesome-haskell-videos 75 awesome-talks 53 racket-fingerpost 123 learn-roc 96 fucking-awesome-fp-js 151 awesome-purescript 30 free-functional-programming-resources 88
Functional programming Categories
Videos 193 Awesome Functional Python 165 Libraries 117 Projects 88 Resources 68 More 56 Those are the most awesome talks from the best speakers about DDD, EventSourcing, CQRS, microservices, functional programming and other crazy stuff :) 54 Purely Functional 19 Lectures 18 Tutorials 15 Impure / Multi-Paradigm 14 Tool and Package Manager 13 Functional Languages that Compile to JavaScript 13 Packages 10 Podcasts 10 Books 10 Articles 8 Style Guides 8 News 7 Haskell 7