Repositories list

• webcodecs

  Public
  WebCodecs is a flexible web API for encoding and decoding audio and video.

  HTML

  •

  Other

  •163•1.2k•130•9•Updated Nov 19, 2025Nov 19, 2025

• csswg-drafts

  Public

  w3c/csswg-drafts’s past year of commit activity
  CSS Working Group Editor Drafts

  css

  Bikeshed

  •

  Other

  •758•4.8k•4.1k•109•Updated Nov 19, 2025Nov 19, 2025

• data-shapes

  Public

  w3c/data-shapes’s past year of commit activity
  Data Shapes WG repo

  HTML

  •

  Other

  •39•133•183•17•Updated Nov 19, 2025Nov 19, 2025

• wcag

  Public

  w3c/wcag’s past year of commit activity
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •330•1.3k•507•83•Updated Nov 19, 2025Nov 19, 2025

• webref

  Public

  w3c/webref’s past year of commit activity
  Machine-readable references of terms defined in web browser specifications

  cssidlweb-platform+ 1definitions-data

  JavaScript

  •

  MIT License

  •104•381•41•2•Updated Nov 19, 2025Nov 19, 2025

• wai-website

  Public

  w3c/wai-website’s past year of commit activity
  This repository hosts the W3C WAI web site.

  accessibilityw3c

  HTML

  •

  Other

  •911•102•343•53•Updated Nov 19, 2025Nov 19, 2025

• spec-dashboard

  Public

  w3c/spec-dashboard’s past year of commit activity
  Tools to monitor development of specs across groups

  JavaScript

  •11•26•7•0•Updated Nov 19, 2025Nov 19, 2025

• matf

  Public

  w3c/matf’s past year of commit activity
  Guidance from the Mobile Accessibility Task Force (MATF)

  androidiosaccessibility

  HTML

  •

  Other

  •7•30•166•4•Updated Nov 19, 2025Nov 19, 2025

• epub-tests

  Public

  w3c/epub-tests’s past year of commit activity
  Test repository for EPUB3, maintained by the EPUB3 WG

  publishingepubdigital-publishing+ 1epub-wg

  HTML

  •

  Other

  •15•27•1•0•Updated Nov 19, 2025Nov 19, 2025

• dpv

  Public

  w3c/dpv’s past year of commit activity
  Data Privacy Vocabularies and Controls CG (DPVCG)

  privacysemanticsvocabulary+ 2gdprdata-protection

  HTML

  •

  Other

  •32•60•89•2•Updated Nov 19, 2025Nov 19, 2025

• sustainableweb-wsg

  Public

  w3c/sustainableweb-wsg’s past year of commit activity
  Web Sustainability Guidelines (WSG)

  sustainabilityguidelines

  HTML

  •

  Other

  •7•34•74•0•Updated Nov 19, 2025Nov 19, 2025

• webdriver-bidi

  Public

  w3c/webdriver-bidi’s past year of commit activity
  Bidirectional WebDriver protocol for browser automation

  Bikeshed

  •60•459•232•23•Updated Nov 19, 2025Nov 19, 2025

• sparql-query

  Public

  w3c/sparql-query’s past year of commit activity
  HTML

  •

  Other

  •3•14•95•9•Updated Nov 19, 2025Nov 19, 2025

• attribution

  Public

  w3c/attribution’s past year of commit activity
  Ad Attribution API

  apiprivacybrowser+ 2webadvertising

  Bikeshed

  •35•52•31•8•Updated Nov 19, 2025Nov 19, 2025

• coga

  Public

  w3c/coga’s past year of commit activity
  Cognitive and Learning Disabilities Accessibility Task Force deliverables

  accessibility

  HTML

  •

  Other

  •31•74•41•1•Updated Nov 19, 2025Nov 19, 2025

• browser-specs

  Public

  w3c/browser-specs’s past year of commit activity
  A machine-readable list of Web specifications

  JavaScript

  •

  Other

  •51•288•62•1•Updated Nov 19, 2025Nov 19, 2025

• rdf-star-wg

  Public
  RDF-star Working Group

  Other

  •11•35•23•4•Updated Nov 19, 2025Nov 19, 2025

• paint-timing

  Public

  w3c/paint-timing’s past year of commit activity
  Paint Timing

  Bikeshed

  •

  Other

  •24•262•3•0•Updated Nov 19, 2025Nov 19, 2025

• reffy

  Public

  w3c/reffy’s past year of commit activity
  Reffy is a Web spec crawler and analyzer tool. It is notably used to update Webref

  JavaScript

  •

  MIT License

  •26•75•40•4•Updated Nov 19, 2025Nov 19, 2025

• wai-evaluation-tools-list

  Public

  w3c/wai-evaluation-tools-list’s past year of commit activity
  List of Accessibility Evaluation Tools

  accessibility

  JavaScript

  •12•9•20•65•Updated Nov 19, 2025Nov 19, 2025

• guide

  Public

  w3c/guide’s past year of commit activity
  The Guidebook is the collected wisdom of the W3C Group Chairs, team contacts and other contributors.

  HTML

  •47•61•51•6•Updated Nov 19, 2025Nov 19, 2025

• strudy

  Public
  Strudy is an analysis tool for Web spec crawl reports created by Reffy

  JavaScript

  •

  MIT License

  •7•8•21•9•Updated Nov 19, 2025Nov 19, 2025

• charter-drafts

  Public
  Draft W3C WG and CG charters for public review

  HTML

  •69•68•13•10•Updated Nov 19, 2025Nov 19, 2025

• sdw-sosa-ssn

  Public
  Repository of the Spatial Data on the Web Working Group for the SOSA/SSN vocabulary

  HTML

  •10•14•20•6•Updated Nov 19, 2025Nov 19, 2025

• webextensions

  Public
  Charter and administrivia for the WebExtensions Community Group (WECG)

  Bikeshed

  •

  Other

  •72•660•407•22•Updated Nov 19, 2025Nov 19, 2025

• png

  Public

  w3c/png’s past year of commit activity
  Maintenance of the PNG specification

  specification

  HTML

  •

  Other

  •23•91•40•2•Updated Nov 19, 2025Nov 19, 2025

• encrypted-media

  Public

  w3c/encrypted-media’s past year of commit activity
  Encrypted Media Extensions

  HTML

  •

  Other

  •82•191•44•5•Updated Nov 19, 2025Nov 19, 2025

• webidl2.js

  Public

  w3c/webidl2.js’s past year of commit activity
  WebIDL parser

  JavaScript

  •

  MIT License

  •69•270•35•5•Updated Nov 19, 2025Nov 19, 2025

• cg-monitor

  Public

  w3c/cg-monitor’s past year of commit activity
  Dashboard of activity from Community Groups

  JavaScript

  •24•17•5•1•Updated Nov 19, 2025Nov 19, 2025

• tpac-breakouts

  Public

  w3c/tpac-breakouts’s past year of commit activity
  Documentation and Management of TPAC plenary day breakouts

  JavaScript

  •

  Other

  •12•8•34•9•Updated Nov 19, 2025Nov 19, 2025