MDN Web Docs

content

The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.

learning-area

GitHub repo for the MDN Learning Area.

browser-compat-data

Browser compatibility data for Web technologies as displayed on MDN

webextensions-examples

Example Firefox add-ons created using the WebExtensions API

web-components-examples

A series of web components examples, related to the MDN web components documentation at https://developer.mozilla.org/en-US/docs/Web/Web_Components.

translated-content

7 community-maintained translations of MDN Web Docs in ES, FR, JA, KO, PT-BR, RU, and ZH, to learn and contribute in your native language.

webaudio-examples

Code examples that accompany the MDN Web Docs pages relating to Web Audio.

mdn

Planning and proposals for MDN Web Docs content

js-examples

Code examples that accompany the MDN JavaScript/ECMAScript documentation

webassembly-examples

Code examples that accompany the MDN WebAssembly documentation — see https://developer.mozilla.org/en-US/docs/WebAssembly.

pwa-examples

Examples for progressive web apps.

curriculum

MDN front-end developer curriculum

todo-react

Sample todo app built with the React/ReactDOM framework.

mdn-community

A place to provide feedback and suggestions for MDN Web Docs

todo-vue

Sample todo app built with the Vue framework

rumba

The clean kuma (🤖🧹)

fred

MDN's frontend since late 2025, built with Web Components, Lit, and SSR for a fast, clean documentation experience. Fred = /fr(ont)e(n)d/.

workflows

Reusable GitHub Actions workflows

rari

Rari is a Rust-based build system that transforms markdown into structured JSON, powering MDN Web Docs content and translations since 2024.

web-tech-games

Interactive diagram showing what parts of the web technology stack can used for different purposes when creating games. Includes links to more information about each.

shared-assets

A repository for media and assets to be used across MDN Web Docs

translated-content-de

Experimental German locale for MDN, aimed at German-speaking users that prefer to read MDN Web Docs in their native language

museum

A historic collection of MDN Web Docs content and examples

differy

release-dashboard

Small app to display bugzilla bugs which need dev docs

mdn-contributor-spotlight

Content for the contributor spotlight on MDN Web Docs

triagebot

dex

MDN's deployment infrastructure.

mcp

MDN's prototype MCP server

tree-sitter-mdn

MDN's macro grammar for tree-sitter