Repositories list

• webref

  Public
  Machine-readable references of terms defined in web browser specifications

  cssidlweb-platform+ 1

  cssidlweb-platformdefinitions-data

  JavaScript

  •

  MIT License

  •130130 forks•457457 stars•5252 issues•99 pull requests•Updated Aug 18, 2026Aug 18, 2026

• validate-repos

  Public
  Test whether W3C spec repos match a set of best practices

  JavaScript

  •

  Other

  •1616 forks•2121 stars•1616 issues•1212 pull requests•Updated Aug 18, 2026Aug 18, 2026

• xml-entities

  Public
  Source for http://www.w3.org/2003/entities/2007xml/

  XSLT

  •1010 forks•1919 stars•11 issue•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •501501 forks•1.5k1.5k stars•433433 issues•8383 pull requests•Updated Aug 17, 2026Aug 17, 2026

• data-shapes

  Public
  Data Shapes WG repo

  HTML

  •

  Other

  •4646 forks•155155 stars•233233 issues•1919 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wai-website

  Public
  This repository hosts the W3C WAI web site.

  accessibilityw3c

  accessibilityw3c

  HTML

  •

  Other

  •1.6k1.6k forks•147147 stars•348348 issues•4545 pull requests•Updated Aug 17, 2026Aug 17, 2026

• web-performance

  Public
  W3C Web Performance Working Group repo

  HTML

  •

  Other

  •7777 forks•431431 stars•55 issues•22 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wcag2ict

  Public
  WCAG2ICT deliverable of Accessibility Guidelines WG

  JavaScript

  •

  Other

  •88 forks•4747 stars•5454 issues•11 pull request•Updated Aug 17, 2026Aug 17, 2026

• browser-specs

  Public
  A machine-readable list of Web specifications

  JavaScript

  •

  Other

  •5959 forks•329329 stars•7878 issues•88 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wcag-act-rules

  Public
  WCAG Conformance Test Rules

  HTML

  •

  Other

  •1919 forks•3131 stars•3636 issues•22 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wcag3

  Public
  WCAG 3

  Astro

  •

  Other

  •4343 forks•165165 stars•403403 issues•2929 pull requests•Updated Aug 17, 2026Aug 17, 2026

• charter-drafts

  Public
  Draft W3C WG and IG charters for public review

  HTML

  •8181 forks•8080 stars•1919 issues•1414 pull requests•Updated Aug 17, 2026Aug 17, 2026

• securityig

  Public
  Security Interest Group

  Other

  •44 forks•99 stars•99 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• echidna

  Public
  New publication workflow at W3C — main component

  checkerw3cvalidator+ 4

  checkerw3cvalidatorspecspecificationstandardpublication

  HTML

  •

  MIT License

  •3939 forks•4545 stars•5050 issues•22 pull requests•Updated Aug 17, 2026Aug 17, 2026

• vc-confidence-method

  Public
  W3C VCDM extension for confidence method

  HTML

  •

  Other

  •33 forks•22 stars•2020 issues•11 pull request•Updated Aug 17, 2026Aug 17, 2026

• sdw

  Public
  Repository for the Spatial Data on the Web Working Group

  HTML

  •8484 forks•165165 stars•7575 issues•11 pull request•Updated Aug 17, 2026Aug 17, 2026

• groups

  Public
  Complement to https://www.w3.org/groups/

  JavaScript

  •

  MIT License

  •66 forks•1212 stars•11 issue•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• dx-qb

  Public
  Other

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• lws-protocol

  Public
  Linked Web Storage Protocol

  HTML

  •

  Other

  •1414 forks•3030 stars•5151 issues•1313 pull requests•Updated Aug 17, 2026Aug 17, 2026

• dx-vvd

  Public
  Other

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• dx-dcat

  Public
  Other

  •00 forks•00 stars•00 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• spec-prod

  Public
  GitHub Action to build ReSpec/Bikeshed specs, validate output and publish to GitHub pages or W3C

  github-pagesw3cvalidator+ 6

  github-pagesw3cvalidatorhacktoberfestrespecbikeshedechidnagithub-actionsspec-generator

  TypeScript

  •

  MIT License

  •2828 forks•4343 stars•4343 issues•22 pull requests•Updated Aug 17, 2026Aug 17, 2026

• sustainableweb-ig

  Public
  W3C Sustainable Web Interest Group

  sustainability

  sustainability

  Other

  •55 forks•3535 stars•1212 issues•22 pull requests•Updated Aug 17, 2026Aug 17, 2026

• wai-evaluation-tools-list

  Public
  List of Accessibility Evaluation Tools

  accessibility

  accessibility

  JavaScript

  •1717 forks•1818 stars•1919 issues•165165 pull requests•Updated Aug 17, 2026Aug 17, 2026

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •808808 forks•4.9k4.9k stars•4.5k4.5k issues•126126 pull requests•Updated Aug 17, 2026Aug 17, 2026

• reffy

  Public
  Reffy is a Web spec crawler and analyzer tool. It is notably used to update Webref

  JavaScript

  •

  MIT License

  •2828 forks•8080 stars•4444 issues•99 pull requests•Updated Aug 17, 2026Aug 17, 2026

• guide

  Public
  The Guidebook is the collected wisdom of the W3C Group Chairs, team contacts and other contributors.

  HTML

  •6868 forks•8181 stars•5858 issues•99 pull requests•Updated Aug 17, 2026Aug 17, 2026

• spec-dashboard

  Public
  Tools to monitor development of specs across groups

  JavaScript

  •1212 forks•3030 stars•77 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026

• dx-prof

  Public
  The Profiles Vocabulary

  HTML

  •

  Other

  •33 forks•77 stars•5858 issues•11 pull request•Updated Aug 17, 2026Aug 17, 2026

• odrl

  Public
  ODRL Community Group Repository

  odrl

  odrl

  HTML

  •

  Other

  •1414 forks•4242 stars•6262 issues•00 pull requests•Updated Aug 17, 2026Aug 17, 2026