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MIT License

206 frameworks

Express.js

Kind: web framework, JavaScript library
Implemented in: JavaScript
Appeared: 2010

FastAPI

Kind: web framework
Implemented in: Python
Latest version: 0.162.2 (November 7, 2026)

Fastify

Kind: web framework, JavaScript library
Implemented in: JavaScript
Appeared: 2016

Federated Wiki

Kind: free and open-source software, wiki software, JavaScript library
Implemented in: CoffeeScript, JavaScript
Appeared: 2011

Fedify

Kind: open-source software, JavaScript framework, free software, free and open-source software, Fediverse app
Implemented in: TypeScript
Latest version: 2.4.5 (October 23, 2026)

FlashPunk

Kind: game engine
Implemented in: ActionScript
Latest version: 1.7.2 (September 19, 2013)

Flow

Kind: content management system, web framework
Implemented in: PHP
Appeared: 2009

Flux

Kind: machine learning framework
Latest version: 0.16.5 (July 23, 2025)
Licence: MIT License

Fresh

Kind: web framework
Implemented in: TypeScript
Latest version: 2.3.3 (April 28, 2026)

FuelPHP

Kind: web framework, free software
Implemented in: PHP
Latest version: 1.9.0 (December 28, 2021)

Fulcro

Kind: Clojure library, web framework, free software
Latest version: 3.10.1 (October 31, 2026)
Licence: MIT License

Gatsby

Kind: JavaScript framework, free and open-source software, static site generator, JavaScript library
Implemented in: JavaScript
Developer: Gatsby

GB Studio

Kind: game engine, game creation system
Latest version: 4.3.2 (June 22, 2026)
Licence: MIT License

GDevelop

Kind: open-source software, game engine, free software, game creation system
Implemented in: WebAssembly
Appeared: 2008

GEMVC

Implemented in: PHP
Latest version: 5.16.1 (August 31, 2026)
Licence: MIT License

Godot

Kind: game engine
Implemented in: C, Objective-C, C#, C++, Java, OpenGL Shading Language
Appeared: 2007

Gollum Wiki

Kind: wiki software
Implemented in: Ruby
Appeared: 2009

Gotham

Kind: web framework
Implemented in: Rust
Latest version: 1.1.0 (March 20, 2021)

Graphql-http

Kind: web framework
Implemented in: TypeScript
Latest version: 1.23.1 (September 28, 2026)

Gulp.js

Kind: build system, JavaScript framework, JavaScript library
Implemented in: JavaScript
Latest version: 5.0.1 (June 1, 2025)

H3

Kind: web server, JavaScript framework, free and open-source software
Implemented in: TypeScript
Latest version: 2.0.8 (October 22, 2026)

HaxeFlixel

Kind: game engine, free software
Implemented in: Haxe
Appeared: 2011

Heaps

Kind: game engine, free and open-source software
Implemented in: Haxe
Latest version: 2.1.1 (June 7, 2025)

Heptapod

Kind: software repository, issue tracking system, code reviewing software, continuous integration software, forge, source code repository, wiki software
Appeared: 2019
Developer: Octobus

Hono

Kind: web framework, software library, free software, free and open-source software, JavaScript library
Implemented in: TypeScript
Appeared: 2021

Httpxy

Kind: JavaScript framework, free and open-source software
Implemented in: TypeScript
Latest version: 0.5.6 (October 23, 2026)

Id Tech 1

Kind: game engine
Implemented in: C, Assembly language
Appeared: 1993

ImpressPages

Kind: content management system, web framework
Implemented in: PHP
Appeared: 2009

Infer.NET

Kind: machine learning framework, free and open-source software
Implemented in: C#
Developer: .NET Foundation, Microsoft

INSTEAD

Kind: game engine
Implemented in: C, Lua
Appeared: 2009

Io.js

Kind: fork, application framework
Based on: Node.js
Latest version: 1.8.1 (April 20, 2015)

Ionic

Kind: web framework, free software, mobile development framework
Implemented in: JavaScript, TypeScript
Appeared: 2013

Jasmine

Kind: software testing tool, JavaScript library
Implemented in: JavaScript
Appeared: 2009

Jekyll

Kind: blog software, free software, free and open-source software, static site generator
Implemented in: Ruby
Appeared: 2008

JPlayer

Kind: JavaScript library
Implemented in: JavaScript
Latest version: 2.9.2 (December 15, 2014)

JQuery Mobile

Kind: web framework, JavaScript library
Implemented in: JavaScript
Latest version: 1.4.5 (October 31, 2014)

Kaboom JS

Implemented in: JavaScript
Latest version: 0.5.0 (May 12, 2021)
Licence: MIT License

Kaplay

Implemented in: JavaScript
Licence: MIT License
Preceded by: Kaboom JS

Kepler

Kind: web framework
Implemented in: Lua
Latest version: 1.1.1 (March 13, 2009)

Keras

Kind: machine learning framework, software
Implemented in: Python
Developer: François Chollet

Kiesel

Kind: free software, JavaScript engine
Implemented in: Zig
Appeared: 2023

Kivy

Kind: software library, graphics library, application framework
Implemented in: Python, Cython
Latest version: 2.3.1 (December 26, 2024)

Koajs

Kind: JavaScript framework, free software, JavaScript library
Implemented in: JavaScript
Latest version: 2.15.3 (April 11, 2024)

Koishi.js

Kind: software library, JavaScript framework, free software
Implemented in: JavaScript, TypeScript
Appeared: 2020

KubeIntellect

Implemented in: Python
Appeared: 2026
Developer: Mohsen Seyedkazemi Ardebili

Lapis

Kind: web framework, free and open-source software
Implemented in: Lua, MoonScript
Developer: Leaf Corcoran

Laravel

Kind: web framework
Implemented in: PHP
Appeared: 2011

Lexical

Kind: web framework, free and open-source software, JavaScript library
Implemented in: JavaScript
Developer: Dominic Gannaway

Lime

Implemented in: JavaScript, C++, Haxe
Latest version: 8.1.1 (November 8, 2023)
Licence: MIT License

Lime

Kind: free and open-source software, test automation framework
Implemented in: PHP
Appeared: 2006

LITIengine

Kind: open-source software, free software
Implemented in: Java
Appeared: 2017

Lively Kernel

Kind: web framework
Implemented in: JavaScript
Developer: Oracle Labs, Hasso Plattner Institute

Lumen

Kind: microframework
Implemented in: PHP
Licence: MIT License

Merb

Kind: web framework
Implemented in: Ruby
Latest version: 1.1.3 (July 12, 2010)

Meteor

Kind: open-source software, web framework, JavaScript framework
Implemented in: C, JavaScript, C++
Appeared: 2012

ML.NET

Kind: machine learning framework, free and open-source software
Implemented in: C#
Appeared: 2018

Mocha

Kind: JavaScript library
Implemented in: JavaScript
Latest version: 12.0.3 (October 1, 2026)

Mockito

Implemented in: Java
Developer: Szczepan Faber
Latest version: 5.24.0 (September 23, 2026)

Mono

Implemented in: C, XML, C#
Appeared: 2004
First release: 2004

MonoGame

Kind: software library, game engine, free software, free and open-source software, application framework
Implemented in: C, C#, C++
Appeared: 2009