Repositories list

• client-toolchain-example

  Public

  mdn/client-toolchain-example’s past year of commit activity
  Demo project for the MDN client-side web development tools tutorial.

  javascripttoolchaindemo+ 1examples

  JavaScript

  •

  Other

  •1•6•0•7•Updated Feb 26, 2026Feb 26, 2026

• browser-compat-data

  Public

  mdn/browser-compat-data’s past year of commit activity
  Browser compatibility data for Web technologies as displayed on MDN

  jsondatadataset+ 2compatibilitycompat

  JSON

  •

  Creative Commons Zero v1.0 Universal

  •2.5k•5.6k•414•39•Updated Feb 26, 2026Feb 26, 2026

• content

  Public

  mdn/content’s past year of commit activity
  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.

  javascriptcsshtml+ 7learninghttpdocumentationweb-developmentreferencemdnweb-standards

  Markdown

  •

  Other

  •23k•11k•355•89•Updated Feb 26, 2026Feb 26, 2026

• mcp

  Public

  mdn/mcp’s past year of commit activity
  MDN's prototype MCP server

  JavaScript

  •

  Mozilla Public License 2.0

  •3•17•0•3•Updated Feb 26, 2026Feb 26, 2026

• translated-content-de

  Public

  mdn/translated-content-de’s past year of commit activity
  Experimental German locale for MDN, aimed at German-speaking users that prefer to read MDN Web Docs in their native language

  Markdown

  •

  Other

  •14•15•5•2•Updated Feb 26, 2026Feb 26, 2026

• todo-react

  Public

  mdn/todo-react’s past year of commit activity
  Sample todo app built with the React/ReactDOM framework.

  reactdemotodo+ 1example

  JavaScript

  •

  Mozilla Public License 2.0

  •310•270•0•6•Updated Feb 26, 2026Feb 26, 2026

• todo-vue

  Public

  mdn/todo-vue’s past year of commit activity
  Sample todo app built with the Vue framework

  todovuejsvue+ 1mdn

  Vue

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  Mozilla Public License 2.0

  •91•140•0•2•Updated Feb 26, 2026Feb 26, 2026

• dex

  Public

  mdn/dex’s past year of commit activity
  MDN's deployment infrastructure.

  JavaScript

  •

  Mozilla Public License 2.0

  •4•1•11•3•Updated Feb 26, 2026Feb 26, 2026

• mdn-http-observatory

  Public

  mdn/mdn-http-observatory’s past year of commit activity
  Backend for HTTP Observatory on MDN

  httpsecurityprivacy+ 3mdnsecurity-toolshttp-headers

  JavaScript

  •

  Mozilla Public License 2.0

  •29•107•14•4•Updated Feb 26, 2026Feb 26, 2026

• translated-content

  Public

  mdn/translated-content’s past year of commit activity
  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.

  documentationweb-developmentlocalization+ 3mdnl10nweb-platform

  Markdown

  •

  Other

  •8.3k•2k•163•180•Updated Feb 26, 2026Feb 26, 2026

• fred

  Public

  mdn/fred’s past year of commit activity
  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/.

  ssrweb-componentslit

  JavaScript

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  Mozilla Public License 2.0

  •32•82•119•24•Updated Feb 26, 2026Feb 26, 2026

• triagebot

  Public
  automation

  JavaScript

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  MIT License

  •2•5•0•1•Updated Feb 25, 2026Feb 25, 2026

• shared-assets

  Public

  mdn/shared-assets’s past year of commit activity
  A repository for media and assets to be used across MDN Web Docs

  assetsexamplesinfra

  Mermaid

  •

  Other

  •15•25•3•0•Updated Feb 24, 2026Feb 24, 2026

• rari

  Public

  mdn/rari’s past year of commit activity
  Rari is a Rust-based build system that transforms markdown into structured JSON, powering MDN Web Docs content and translations since 2024.

  infra

  Rust

  •

  Other

  •29•35•46•9•Updated Feb 24, 2026Feb 24, 2026

• watify

  Public
  Compile WAT to WASM with WASM 🙇

  HTML

  •

  Mozilla Public License 2.0

  •0•4•0•2•Updated Feb 24, 2026Feb 24, 2026

• bcd-utils

  Public
  toolinginfrabcd+ 1browser-compat-data

  JavaScript

  •

  Mozilla Public License 2.0

  •10•6•0•2•Updated Feb 24, 2026Feb 24, 2026

• tree-sitter-mdn

  Public

  mdn/tree-sitter-mdn’s past year of commit activity
  MDN's macro grammar for tree-sitter

  JavaScript

  •

  MIT License

  •2•2•0•3•Updated Feb 23, 2026Feb 23, 2026

• yari

  Public

  mdn/yari’s past year of commit activity
  The platform code behind MDN Web Docs

  mdnyari

  TypeScript

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  Mozilla Public License 2.0

  •552•1.3k•2•3•Updated Feb 23, 2026Feb 23, 2026

• rumba

  Public

  mdn/rumba’s past year of commit activity
  The clean kuma (🤖🧹)

  rust

  Rust

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  Mozilla Public License 2.0

  •21•59•3•4•Updated Feb 23, 2026Feb 23, 2026

• express-locallibrary-tutorial

  Public
  Local Library website written in NodeJS/Express; example for the MDN server-side development NodeJS module: https://developer.mozilla.org/en-US/docs/Learn/Serve…

  nodejsdemoexpress+ 2examplewebapp

  JavaScript

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  Creative Commons Zero v1.0 Universal

  •814•1.3k•1•0•Updated Feb 22, 2026Feb 22, 2026

• museum

  Public

  mdn/museum’s past year of commit activity
  A historic collection of MDN Web Docs content and examples

  examplesarchive

  JavaScript

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  Mozilla Public License 2.0

  •3•13•0•0•Updated Feb 18, 2026Feb 18, 2026

• mdn-community

  Public

  mdn/mdn-community’s past year of commit activity
  A place to provide feedback and suggestions for MDN Web Docs

  communityfeedbackmdn+ 1governance

  Mozilla Public License 2.0

  •54•152•9•0•Updated Feb 18, 2026Feb 18, 2026

• houdini-examples

  Public

  mdn/houdini-examples’s past year of commit activity
  CSS Houdini examples relating to MDN content.

  cssexampleshoudini

  HTML

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  Creative Commons Zero v1.0 Universal

  •9•37•0•0•Updated Feb 18, 2026Feb 18, 2026

• imsc-examples

  Public
  Repository for examples to go along with MDN IMSC documentation.

  webexamplesmedia+ 2subtitlescaptioning

  HTML

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  Creative Commons Zero v1.0 Universal

  •7•12•0•0•Updated Feb 18, 2026Feb 18, 2026

• html-examples

  Public
  Code examples that accompany the MDN HTML documentation: https://developer.mozilla.org/en-US/docs/Web/HTML

  htmlexamples

  HTML

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  Creative Commons Zero v1.0 Universal

  •112•100•0•0•Updated Feb 18, 2026Feb 18, 2026

• web-tech-games

  Public

  mdn/web-tech-games’s past year of commit activity
  Interactive diagram showing what parts of the web technology stack can used for different purposes when creating games. Includes links to more information about…

  HTML

  •

  Mozilla Public License 2.0

  •15•27•0•0•Updated Feb 18, 2026Feb 18, 2026

• webassembly-examples

  Public

  mdn/webassembly-examples’s past year of commit activity
  Code examples that accompany the MDN WebAssembly documentation — see https://developer.mozilla.org/en-US/docs/WebAssembly.

  exampleswebassemblywasm

  WebAssembly

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  Creative Commons Zero v1.0 Universal

  •265•1.2k•2•0•Updated Feb 18, 2026Feb 18, 2026

• mdn

  Public

  mdn/mdn’s past year of commit activity
  Planning and proposals for MDN Web Docs content

  metamdnplanning+ 2governanceweb-platform

  MIT License

  •190•1.3k•115•2•Updated Feb 18, 2026Feb 18, 2026

• data

  Public
  This repository contains general data for Web technologies

  cssjsondata+ 1json-data

  JavaScript

  •

  Creative Commons Zero v1.0 Universal

  •208•775•35•1•Updated Feb 17, 2026Feb 17, 2026

• pwa-examples

  Public
  Examples for progressive web apps.

  pwaprogressive-web-appexamples

  JavaScript

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  Creative Commons Zero v1.0 Universal

  •619•1k•1•0•Updated Feb 17, 2026Feb 17, 2026