DevDocs: API Documentation Browser
DevDocs combines multiple developer documentations in a clean and organized web UI with instant search, offline support, mobile version, dark theme, keyboard shortcuts, and more.
DevDocs is free and open source. It was created by Thibaut Courouble and is operated by freeCodeCamp.
To keep up-to-date with the latest news:
Copyright and License
Copyright 2013–2026 Thibaut Courouble and other contributors
This software is licensed under the terms of the Mozilla Public License v2.0.
You may obtain a copy of the source code at github.com/freeCodeCamp/devdocs.
For more information, see the COPYRIGHT
and LICENSE files.
Plugins and Extensions
Questions & Answers
- Where can I suggest new docs and features?
- You can suggest and vote for new docs on the Trello board.
If you have a specific feature request, add it to the issue tracker.
Otherwise, come talk to us in the Discord chat room. - Where can I report bugs?
- In the issue tracker. Thanks!
Credits
Special thanks to:
- Sentry and Gauges for offering a free account to DevDocs
- MaxCDN, Shopify, JetBrains and Code School for sponsoring DevDocs in the past
- Heroku and New Relic for providing awesome free service
- Jeremy Kratz for the C/C++ logo
| Documentation | Copyright/License | Source code |
|---|---|---|
| CSS | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| HTML | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| HTTP | undefined | Source code |
| JavaScript | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| Web APIs | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| Angular | Super-powered by Google ©2010–2025. Code licensed under an MIT-style License. Documentation licensed under CC BY 4.0. | Source code |
| Angular.js | © 2010–2020 Google, Inc. Licensed under the Creative Commons Attribution License 3.0. | Source code |
| Ansible | © 2012–2018 Michael DeHaan © 2018–2025 Red Hat, Inc. Licensed under the GNU General Public License version 3. | Source code |
| Apache HTTP Server | © 2018 The Apache Software Foundation Licensed under the Apache License, Version 2.0. | Source code |
| Apache Pig | © 2007–2017 Apache Software Foundation Licensed under the Apache Software License version 2.0. | Source code |
| Astro | © 2021 Fred K. Schott Licensed under the MIT License. | Source code |
| Async | © 2010–2018 Caolan McMahon Licensed under the MIT License. | Source code |
| Axios | © 2020-present John Jakob "Jake" Sarjeant Licensed under the MIT License. | Source code |
| Babel | © 2014-present Sebastian McKenzie Licensed under the MIT License. | Source code |
| Backbone.js | © 2010–2024 Jeremy Ashkenas, DocumentCloud Licensed under the MIT License. | Source code |
| Bash | Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. Licensed under the GNU Free Documentation License. | Source code |
| Bazel | Licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. | Source code |
| Bluebird | © 2013–2018 Petka Antonov Licensed under the MIT License. | Source code |
| Bootstrap | © 2011–2023 The Bootstrap Authors Code licensed under the MIT License. Documentation licensed under the Creative Commons Attribution License v3.0. | Source code |
| Bottle | © 2009–2017 Marcel Hellkamp Licensed under the MIT License. | Source code |
| Bower | © 2018 Bower contributors Licensed under the MIT License. | Source code |
| Bun | © bun.com, oven-sh, Jarred Sumner Licensed under the MIT License. | Source code |
| C | © cppreference.com Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0. | Source code |
| C++ | © cppreference.com Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0. | Source code |
| CakePHP | © 2005–present The Cake Software Foundation, Inc. Licensed under the MIT License. CakePHP is a registered trademark of Cake Software Foundation, Inc. We are not endorsed by or affiliated with CakePHP. | Source code |
| Chai | © 2017 Chai.js Assertion Library Licensed under the MIT License. | Source code |
| Chef | © Chef Software, Inc. Licensed under the Creative Commons Attribution 3.0 Unported License. The Chef™ Mark and Chef Logo are either registered trademarks/service marks or trademarks/service marks of Chef, in the United States and other countries and are used with Chef Inc's permission. We are not affiliated with, endorsed or sponsored by Chef Inc. | Source code |
| click | © Copyright 2014 Pallets. Licensed under the BSD 3-Clause License. We are not supported nor endorsed by Pallets. | Source code |
| Clojure | © Rich Hickey Licensed under the Eclipse Public License 1.0. | Source code |
| CMake | © 2000–2024 Kitware, Inc. and Contributors Licensed under the BSD 3-clause License. | Source code |
| Codeception | © 2011 Michael Bodnarchuk and contributors Licensed under the MIT License. | Source code |
| CodeceptJS | © 2015 DavertMik <davert@codegyre.com> (http://codegyre.com) Licensed under the MIT License. | Source code |
| CodeIgniter | © 2014–2021 British Columbia Institute of Technology Licensed under the MIT License. | Source code |
| CoffeeScript | © 2009–2022 Jeremy Ashkenas Licensed under the MIT License. | Source code |
| Composer | © Nils Adermann, Jordi Boggiano Licensed under the MIT License. | Source code |
| Cordova | © 2012, 2013, 2015 The Apache Software Foundation Licensed under the Apache License 2.0. | Source code |
| CouchDB | Copyright © 2025 The Apache Software Foundation — Licensed under the Apache License 2.0 | Source code |
| Crystal | undefined | Source code |
| Cypress | © 2017 Cypress.io Licensed under the MIT License. | Source code |
| D | © 1999–2021 The D Language Foundation Licensed under the Boost License 1.0. | Source code |
| D3.js | © 2010–2023 Michael Bostock Licensed under the BSD License. | Source code |
| Dart | © 2012 the Dart project authors Licensed under the BSD 3-Clause "New" or "Revised" License. | Source code |
| date-fns | © 2021 Sasha Koss and Lesha Koss Licensed under the MIT License. | Source code |
| Deno | © 2018–2025 the Deno authors Licensed under the MIT License. | Source code |
| Django | © Django Software Foundation and individual contributors Licensed under the BSD License. | Source code |
| Django REST Framework | Copyright © 2011–present Encode OSS Ltd. Licensed under the BSD License. | Source code |
| Docker | © 2019 Docker, Inc. Licensed under the Apache License, Version 2.0. Docker and the Docker logo are trademarks or registered trademarks of Docker, Inc. in the United States and/or other countries. Docker, Inc. and other parties may also have trademark rights in other terms used herein. | Source code |
| Dojo | © 2005–2017 JS Foundation Licensed under the AFL 2.1 and BSD 3-Clause licenses. | Source code |
| Drupal | © 2001–2016 by the original authors Licensed under the GNU General Public License, version 2 and later. Drupal is a registered trademark of Dries Buytaert. | Source code |
| DuckDB | © Copyright 2018–2024 Stichting DuckDB Foundation Licensed under the MIT License. | Source code |
| Eigen3 | © Eigen. Licensed under the MPL2 License. | Source code |
| Electron | © GitHub Inc. Licensed under the MIT license. | Source code |
| Elisp | Copyright © 1990-1996, 1998-2022 Free Software Foundation, Inc. Licensed under the GNU GPL license. | Source code |
| Elixir | © 2012-2024 The Elixir Team Licensed under the Apache License, Version 2.0. | Source code |
| Ember.js | © 2022 Yehuda Katz, Tom Dale and Ember.js contributors Licensed under the MIT License. | Source code |
| Enzyme | © 2015 Airbnb, Inc. Licensed under the MIT License. | Source code |
| Erlang | © 2010–2023 Ericsson AB Licensed under the Apache License, Version 2.0. | Source code |
| es-toolkit | © 2024-2025, Viva Republica Licensed under the MIT License. | Source code |
| esbuild | © 2020 Evan Wallace Licensed under the MIT License. | Source code |
| ESLint | © OpenJS Foundation and other contributors Licensed under the MIT License. | Source code |
| Express | © 2017 StrongLoop, IBM, and other expressjs.com contributors. Licensed under the Creative Commons Attribution-ShareAlike License v3.0. | Source code |
| Falcon | © 2019 by Falcon contributors Licensed under the Apache License, Version 2.0. | Source code |
| FastAPI | © 2018 Sebastián Ramírez Licensed under the MIT License. | Source code |
| Fish | © 2005-2009 Axel Liljencrantz, 2009-2026 fish-shell contributors Licensed under the GNU General Public License, version 2. | Source code |
| Flask | © 2010 Pallets Licensed under the BSD 3-clause License. | Source code |
| Flow | © 2013–present Facebook Inc. Licensed under the MIT License. | Source code |
| Fluture | © 2020 Aldwin Vlasblom Licensed under the MIT License. | Source code |
| GCC | © Free Software Foundation Licensed under the GNU Free Documentation License, Version 1.3. | Source code |
| Git | © 2005–2026 Linus Torvalds and others Licensed under the GNU General Public License version 2. | Source code |
| GNU Fortran | © Free Software Foundation Licensed under the GNU Free Documentation License, Version 1.3. | Source code |
| GNU Make | Copyright © 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Free Software Foundation, Inc. Licensed under the GNU Free Documentation License. | Source code |
| GnuCOBOL | Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. Licensed under the GNU Free Documentation License. | Source code |
| Gnuplot | Copyright 1986 - 1993, 1998, 2004 Thomas Williams, Colin Kelley Distributed under the gnuplot license (rights to distribute modified versions are withheld). | Source code |
| Go | © Google, Inc. Licensed under the Creative Commons Attribution License 3.0. | Source code |
| Godot | © 2014–present Juan Linietsky, Ariel Manzur and the Godot community Licensed under the Creative Commons Attribution Unported License v3.0. | Source code |
| Graphite | © 2008–2012 Chris Davis © 2011–2016 The Graphite Project Licensed under the Apache License, Version 2.0. | Source code |
| Graphviz | © 2025 The Graphviz Authors Licensed under the Eclipse Public License 1.0. | Source code |
| Groovy | © 2003-2022 The Apache Software Foundation Licensed under the Apache license. | Source code |
| Grunt | © GruntJS Team Licensed under the MIT License. | Source code |
| GTK | © 2005–2020 The GNOME Project Licensed under the GNU Lesser General Public License version 2.1 or later. | Source code |
| Hammerspoon | © 2014–2017 Hammerspoon contributors Licensed under the MIT License. | Source code |
| Handlebars.js | © 2011–2017 by Yehuda Katz Licensed under the MIT License. | Source code |
| Hapi | Copyright © 2011-2022, Project contributors Copyright © 2011-2020, Sideway Inc Copyright © 2011-2014, Walmart Copyright © 2011, Yahoo Inc. Licensed under the BSD 3-clause License. | Source code |
| HAProxy | © 2025 Willy Tarreau, HAProxy contributors Licensed under the GNU General Public License version 2. | Source code |
| Haskell | undefined | Source code |
| Haxe | © 2005–2020 Haxe Foundation Licensed under a MIT license. | Source code |
| Homebrew | © 2009–present Homebrew contributors Licensed under the BSD 2-Clause License. | Source code |
| htmx | Licensed under the Zero-Clause BSD License. | Source code |
| i3 | © 2009, Michael Stapelberg and contributors | Source code |
| Immutable.js | © 2014–present, Lee Byron and other contributors Licensed under the 3-clause BSD License. | Source code |
| InfluxData | © 2015 InfluxData, Inc. Licensed under the MIT license. | Source code |
| Jasmine | © 2008–2019 Pivotal Labs Licensed under the MIT License. | Source code |
| Jekyll | © 2025 Jekyll Core Team and contributors Licensed under the MIT license. | Source code |
| Jest | © 2022 Facebook, Inc. Licensed under the MIT License. | Source code |
| Jinja | © 2007–2021 Pallets Licensed under the BSD 3-clause License. | Source code |
| Joi | Copyright © 2012-2022, Project contributors Copyright © 2012-2022, Sideway Inc Copyright © 2012-2014, Walmart Licensed under the BSD 3-clause License. | Source code |
| jq | © 2012 Stephen Dolan Licensed under the Creative Commons Attribution 3.0 license | Source code |
| jQuery | © The jQuery Foundation and other contributors Licensed under the MIT License. | Source code |
| jQuery Mobile | © The jQuery Foundation and other contributors Licensed under the MIT License. | Source code |
| jQuery UI | © The jQuery Foundation and other contributors Licensed under the MIT License. | Source code |
| JSDoc | © 2011–2017 the contributors to the JSDoc 3 documentation project Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0. | Source code |
| Julia | © 2009–2024 Jeff Bezanson, Stefan Karpinski, Viral B. Shah, and other contributors Licensed under the MIT License. | Source code |
| Knockout.js | © Steven Sanderson, the Knockout.js team, and other contributors Licensed under the MIT License. | Source code |
| Koa | © 2020 Koa contributors Licensed under the MIT License. | Source code |
| Kotlin | © 2010–2023 JetBrains s.r.o. and Kotlin Programming Language contributors Licensed under the Apache License, Version 2.0. | Source code |
| Kubectl | © 2025 The Kubernetes Authors | Documentation Distributed under CC BY 4.0 Copyright © 2025 The Linux Foundation ®. All rights reserved. | Source code |
| Kubernetes | © 2025 The Kubernetes Authors | Documentation Distributed under CC BY 4.0 Copyright © 2025 The Linux Foundation ®. All rights reserved. | Source code |
| Laravel | © Taylor Otwell Licensed under the MIT License. Laravel is a trademark of Taylor Otwell. | Source code |
| LaTeX | © 2007–2018 Karl Berry Public Domain Software | Source code |
| Leaflet | © 2010–2025 Vladimir Agafonkin © 2010–2011, CloudMade Maps © OpenStreetMap contributors. | Source code |
| Less | © 2009–2020 The Core Less Team Licensed under the Creative Commons Attribution License 3.0. | Source code |
| Linux man pages | ... | Source code |
| Liquid | © 2005, 2006 Tobias Luetke Licensed under the MIT License. | Source code |
| Lit | © Google LLC Licensed under the Creative Commons Attribution 3.0 Unported License. | Source code |
| lodash | © JS Foundation and other contributors Licensed under the MIT License. | Source code |
| Lua | © 1994–2025 Lua.org, PUC-Rio. Licensed under the MIT License. | Source code |
| LÖVE | © 2006–2020 LÖVE Development Team Licensed under the GNU Free Documentation License, Version 1.3. | Source code |
| MariaDB | © 2023 MariaDB Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License. | Source code |
| Marionette.js | © 2017 Muted Solutions, LLC Licensed under the MIT License. | Source code |
| Markdown | © 2004 John Gruber Licensed under the BSD License. | Source code |
| Matplotlib | © 2012–2023 Matplotlib Development Team. All rights reserved. Licensed under the Matplotlib License Agreement. | Source code |
| Meteor | © 2011–2017 Meteor Development Group, Inc. Licensed under the MIT License. | Source code |
| Mocha | © 2011–2021 JS Foundation and contributors Licensed under the Creative Commons Attribution 4.0 International License. | Source code |
| Modernizr | © 2009–2020 The Modernizr team Licensed under the MIT License. | Source code |
| Moment.js | © JS Foundation and other contributors Licensed under the MIT License. | Source code |
| Moment.js Timezone | © JS Foundation and other contributors Licensed under the MIT License. | Source code |
| Mongoose | © 2010 LearnBoost Licensed under the MIT License. | Source code |
| Next.js | © 2024 Vercel, Inc. Licensed under the MIT License. | Source code |
| nginx | © 2002-2021 Igor Sysoev © 2011-2025 Nginx, Inc. Licensed under the BSD License. | Source code |
| nginx / Lua Module | © 2009–2017 Xiaozhe Wang (chaoslawful) © 2009–2019 Yichun "agentzh" Zhang (章亦春), OpenResty Inc. Licensed under the BSD License. | Source code |
| Nim | © 2006–2024 Andreas Rumpf Licensed under the MIT License. | Source code |
| Nix | © 2022 NixOS Contributors Licensed under the LGPL License. | Source code |
| Node.js | © Joyent, Inc. and other Node contributors Licensed under the MIT License. Node.js is a trademark of Joyent, Inc. and is used with its permission. We are not endorsed by or affiliated with Joyent. | Source code |
| Nokogiri | © 2008–2023 by Mike Dalessio, Aaron Patterson, Yoko Harada, Akinori MUSHA, John Shahid, Karol Bucek, Sam Ruby, Craig Barnes, Stephen Checkoway, Lars Kanis, Sergio Arbeo, Timothy Elliott, Nobuyoshi Nakada, Charles Nutter, Patrick Mahoney Licensed under the MIT License. | Source code |
| npm | © npm, Inc. and Contributors Licensed under the npm License. npm is a trademark of npm, Inc. | Source code |
| NumPy | © 2005–2024 NumPy Developers Licensed under the 3-clause BSD License. | Source code |
| Nushell | Copyright © 2019–2023 The Nushell Project Developers Licensed under the MIT License. | Source code |
| OCaml | © 1995-2025 INRIA. | Source code |
| Octave | © 1996–2025 The Octave Project Developers Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions. | Source code |
| OpenGL | undefined | Source code |
| OpenJDK | © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Documentation extracted from Debian's OpenJDK Development Kit package. Licensed under the GNU General Public License, version 2, with the Classpath Exception. Various third party code in OpenJDK is licensed under different licenses (see Debian package). Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates. | Source code |
| OpenLayers | © 2005-present, OpenLayers Contributors All rights reserved. Licensed under the BSD 2-Clause License. | Source code |
| OpenTSDB | © 2010–2016 The OpenTSDB Authors Licensed under the GNU LGPLv2.1+ and GPLv3+ licenses. | Source code |
| Padrino | © 2010–2020 Padrino Licensed under the MIT License. | Source code |
| pandas | © 2008–2011, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team © 2011–2025, Open source contributors Licensed under the 3-clause BSD License. | Source code |
| Perl | © 1993–2025 Larry Wall and others Licensed under the GNU General Public License version 1 or later, or the Artistic License. The Perl logo is a trademark of the Perl Foundation. | Source code |
| Phalcon | © 2011–2017 Phalcon Framework Team Licensed under the Creative Commons Attribution License 3.0. | Source code |
| Phaser | © 2016 Richard Davey, Photon Storm Ltd. Licensed under the MIT License. | Source code |
| Phoenix | undefined | Source code |
| PHP | © 1997–2025 The PHP Documentation Group Licensed under the Creative Commons Attribution License v3.0 or later. | Source code |
| PHPUnit | © 2005–2025 Sebastian Bergmann Licensed under the Creative Commons Attribution 3.0 Unported License. | Source code |
| Playwright | © 2025 Microsoft Licensed under the Apache License, Version 2.0. | Source code |
| PointCloudLibrary | © 2009–2012, Willow Garage, Inc. © 2012–, Open Perception, Inc. Licensed under the BSD License. | Source code |
| Pony | © 2016-2020, The Pony Developers © 2014-2015, Causality Ltd. Licensed under the BSD 2-Clause License. | Source code |
| PostgreSQL | © 1996–2026 The PostgreSQL Global Development Group Licensed under the PostgreSQL License. | Source code |
| Prettier | © James Long and contributors | Source code |
| Pug | © Pug authors Licensed under the MIT license. | Source code |
| Puppeteer | © 2021 Google Inc Licensed under the Apache License 2.0. | Source code |
| Pygame | © Pygame Developers. Licensed under the GNU LGPL License version 2.1. | Source code |
| Python | © 2001–2025 Python Software Foundation Licensed under the PSF License. | Source code |
| PyTorch | © 2025, PyTorch Contributors PyTorch has a BSD-style license, as found in the LICENSE file. | Source code |
| Q | © 2009–2018 Kristopher Michael Kowal Licensed under the MIT License. | Source code |
| Qt | © The Qt Company Ltd Licensed under the GNU Free Documentation License, Version 1.3. | Source code |
| QUnit | © OpenJS Foundation and contributors. Licensed under the MIT license. | Source code |
| R | Copyright (©) 1999–2012 R Foundation for Statistical Computing. Licensed under the GNU General Public License. | Source code |
| Ramda | © 2013–2025 Scott Sauyet and Michael Hurley Licensed under the MIT License. | Source code |
| React | © 2013–present Facebook Inc. Licensed under the Creative Commons Attribution 4.0 International Public License. | Source code |
| React Bootstrap | © 2014–present Stephen J. Collings, Matthew Honnibal, Pieter Vanderwerff Licensed under the MIT License (MIT). | Source code |
| React Native | © 2022 Facebook Inc. Licensed under the Creative Commons Attribution 4.0 International Public License. | Source code |
| React Router | © React Training 2015-2019 © Remix Software 2020-2022 Licensed under the MIT License (MIT). | Source code |
| ReactiveX | © ReactiveX contributors Licensed under the Apache License 2.0. | Source code |
| Redis | © 2006–2022 Salvatore Sanfilippo Licensed under the Creative Commons Attribution-ShareAlike License 4.0. | Source code |
| Redux | © 2015–2022 Dan Abramov Licensed under the MIT License. | Source code |
| Relay | © 2020–present Facebook Inc. Licensed under the BSD License. | Source code |
| Requests | © 2011-2025 Kenneth Reitz and other contributors Licensed under the Apache license. | Source code |
| RequireJS | © jQuery Foundation and other contributors Licensed under the MIT License. | Source code |
| RethinkDB | © RethinkDB contributors Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License. | Source code |
| Ruby | Ruby Core © 1993–2025 Yukihiro Matsumoto Licensed under the Ruby License. Ruby Standard Library © contributors Licensed under their own licenses. | Source code |
| Ruby / Minitest | © Ryan Davis, seattle.rb Licensed under the MIT License. | Source code |
| Ruby on Rails | undefined | Source code |
| Rust | © 2010 The Rust Project Developers Licensed under the Apache License, Version 2.0 or the MIT license, at your option. | Source code |
| RxJS | © 2015–2022 Google, Inc., Netflix, Inc., Microsoft Corp. and contributors. Code licensed under an Apache-2.0 License. Documentation licensed under CC BY 4.0. | Source code |
| SaltStack | © 2021 SaltStack. Licensed under the Apache License, Version 2.0. | Source code |
| Sanctuary | © 2020 Sanctuary © 2016 Plaid Technologies, Inc. Licensed under the MIT License. | Source code |
| Sanctuary Def | © 2020 Sanctuary © 2016 Plaid Technologies, Inc. Licensed under the MIT License. | Source code |
| Sanctuary Type Classes | © 2020 Sanctuary © 2016 Plaid Technologies, Inc. Licensed under the MIT License. | Source code |
| Sass | © 2006–2025 the Sass team, and numerous contributors Licensed under the MIT License. | Source code |
| Scala | © 2002-2022 EPFL, with contributions from Lightbend. Licensed under the Apache License, Version 2.0. | Source code |
| scikit-image | © 2019 the scikit-image team Licensed under the BSD 3-clause License. | Source code |
| scikit-learn | © 2007–2025 The scikit-learn developers Licensed under the 3-clause BSD License. | Source code |
| Sequelize | Copyright © 2014–present Sequelize contributors Licensed under the MIT License. | Source code |
| Sinon.JS | © 2010–2022 Christian Johansen Licensed under the BSD License. | Source code |
| Socket.IO | © 2014–2021 Automattic Licensed under the MIT License. | Source code |
| Spring Boot | Copyright © 2012-2023 VMware, Inc. Licensed under the Apache License, Version 2.0. | Source code |
| SQLite | SQLite is in the Public Domain. | Source code |
| Statsmodels | © 2009–2012 Statsmodels Developers © 2006–2008 Scipy Developers © 2006 Jonathan E. Taylor Licensed under the 3-clause BSD License. | Source code |
| Support Tables | © 2020 Alexis Deveria Licensed under the Creative Commons Attribution 4.0 International License. | Source code |
| Svelte | © 2016–2025 Rich Harris and contributors Licensed under the MIT License. | Source code |
| SVG | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| Symfony | © 2004–2017 Fabien Potencier Licensed under the MIT License. | Source code |
| Tailwind CSS | © Tailwind Labs Inc. | Source code |
| Tcl/Tk | Licensed under Tcl/Tk terms | Source code |
| Tcllib | Licensed under the BSD license | Source code |
| TensorFlow | © 2022 The TensorFlow Authors. All rights reserved. Licensed under the Creative Commons Attribution License 4.0. Code samples licensed under the Apache 2.0 License. | Source code |
| TensorFlow C++ | © 2022 The TensorFlow Authors. All rights reserved. Licensed under the Creative Commons Attribution License 4.0. Code samples licensed under the Apache 2.0 License. | Source code |
| Terraform | © 2018 HashiCorp Licensed under the MPL 2.0 License. | Source code |
| Three.js | © 2010–2026 Three.js Authors Licensed under the MIT License. | Source code |
| Trio | © 2017 Nathaniel J. Smith Licensed under the MIT License. | Source code |
| Twig | © 2009–2018 by the Twig Team Licensed under the three clause BSD license. The Twig logo is © 2010–2020 Symfony | Source code |
| TypeScript | © 2012-2025 Microsoft Licensed under the Apache License, Version 2.0. | Source code |
| Underscore.js | © 2009–2021 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors Licensed under the MIT License. | Source code |
| Vagrant | © 2010–2018 Mitchell Hashimoto Licensed under the MPL 2.0 License. | Source code |
| Varnish | Copyright © 2006 Verdens Gang AS Copyright © 2006–2020 Varnish Software AS Licensed under the BSD-2-Clause License. | Source code |
| Vert.x | © 2025 Eclipse Vert.x™ Eclipse Vert.x™ is open source and dual-licensed under the Eclipse Public License 2.0 and the Apache License 2.0. Website design by Michel Krämer. | Source code |
| Vite | © 2019-present, VoidZero Inc. and Vite contributors Licensed under the MIT License. | Source code |
| Vitest | © 2021-Present VoidZero Inc. and Vitest contributors Licensed under the MIT License. | Source code |
| Vue | © 2018-present, Yuxi (Evan) You and Vue contributors Licensed under the MIT License. | Source code |
| Vue Router | © 2014-present Evan You, Eduardo San Martin Morote Licensed under the MIT License. | Source code |
| VueUse | © 2019-present Anthony Fu Licensed under the MIT License. | Source code |
| Vuex | © 2015–present Evan You Licensed under the MIT License. | Source code |
| Vulkan | © 2014–2017 Khronos Group Inc. Licensed under the Creative Commons Attribution 4.0 International License. Vulkan and the Vulkan logo are registered trademarks of the Khronos Group Inc. | Source code |
| Wagtail | © 2014-present Torchbox Ltd and individual contributors. All rights are reserved. Licensed under the BSD License. | Source code |
| Web Extensions | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| webpack | © JS Foundation and other contributors Licensed under the Creative Commons Attribution License 4.0. | Source code |
| Werkzeug | © 2007 Pallets Licensed under the BSD 3-clause License. | Source code |
| WordPress | © 2003–2024 WordPress Foundation Licensed under the GNU GPLv2+ License. | Source code |
| XSLT & XPath | © 2005–2025 MDN contributors. Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later. | Source code |
| Yarn | © 2016–present Yarn Contributors Licensed under the BSD License. | Source code |
| Yii | © 2008–2017 by Yii Software LLC Licensed under the three clause BSD license. | Source code |
| Zig | © 2015–2025, Zig contributors Licensed under the MIT License. | Source code |
| Zsh | The Z Shell is copyright © 1992–2017 Paul Falstad, Richard Coleman,
Zoltán Hidvégi, Andrew Main, Peter Stephenson, Sven Wischnowsky, and others. Licensed under the MIT License. | Source code |
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