Repositories list

• webref

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

  cssidlweb-platform+ 1

  cssidlweb-platformdefinitions-data

  JavaScript

  •

  MIT License

  •122122 forks•430430 stars•5151 issues•44 pull requests•Updated May 1, 2026May 1, 2026

• wai-aria-practices

  Public
  WAI Website Resource for aria-practices guidelines

  JavaScript

  •1212 forks•2020 stars•2828 issues•2929 pull requests•Updated May 1, 2026May 1, 2026

• aria-practices

  Public
  WAI-ARIA Authoring Practices Guide (APG)

  csshtmlaria

  csshtmlaria

  HTML

  •

  Other

  •464464 forks•1.3k1.3k stars•637637 issues•5858 pull requests•Updated May 1, 2026May 1, 2026

• yaml-ld

  Public

  w3c/yaml-ld’s past year of commit activity
  CG specification for YAML-LD and UCR

  yamljsonlinked-data+ 2

  yamljsonlinked-datardfw3c

  HTML

  •

  Other

  •88 forks•3333 stars•2727 issues•44 pull requests•Updated May 1, 2026May 1, 2026

• rdf-turtle

  Public
  HTML

  •

  Other

  •77 forks•2020 stars•77 issues•11 pull request•Updated May 1, 2026May 1, 2026

• css-validator

  Public
  W3C CSS Validation Service

  Java

  •

  Other

  •116116 forks•236236 stars•4343 issues•77 pull requests•Updated May 1, 2026May 1, 2026

• data-shapes

  Public

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

  HTML

  •

  Other

  •4545 forks•150150 stars•209209 issues•1919 pull requests•Updated May 1, 2026May 1, 2026

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •412412 forks•1.4k1.4k stars•448448 issues•100100 pull requests•Updated May 1, 2026May 1, 2026

• tt-profile-registry

  Public
  Profile registry for TTML

  HTML

  •

  Other

  •66 forks•77 stars•66 issues•44 pull requests•Updated May 1, 2026May 1, 2026

• wcag3

  Public

  w3c/wcag3’s past year of commit activity
  WCAG 3

  Astro

  •

  Other

  •3434 forks•144144 stars•377377 issues•1212 pull requests•Updated May 1, 2026May 1, 2026

• charter-drafts

  Public
  Draft W3C WG and CG charters for public review

  HTML

  •7676 forks•7171 stars•1919 issues•99 pull requests•Updated May 1, 2026May 1, 2026

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •788788 forks•4.8k4.8k stars•4.4k4.4k issues•112112 pull requests•Updated May 1, 2026May 1, 2026

• guide

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

  HTML

  •6565 forks•7272 stars•5757 issues•66 pull requests•Updated May 1, 2026May 1, 2026

• pm-wg

  Public
  Publishing Maintenance Working Group

  HTML

  •

  Other

  •44 forks•44 stars•11 issue•00 pull requests•Updated May 1, 2026May 1, 2026

• browser-specs

  Public

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

  JavaScript

  •

  Other

  •5454 forks•309309 stars•7878 issues•22 pull requests•Updated May 1, 2026May 1, 2026

• wcag2ict

  Public
  WCAG2ICT deliverable of Accessibility Guidelines WG

  JavaScript

  •

  Other

  •88 forks•4242 stars•8484 issues•11 pull request•Updated May 1, 2026May 1, 2026

• strudy

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

  JavaScript

  •

  MIT License

  •66 forks•1212 stars•2424 issues•1717 pull requests•Updated May 1, 2026May 1, 2026

• spec-dashboard

  Public

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

  JavaScript

  •1313 forks•3131 stars•77 issues•00 pull requests•Updated May 1, 2026May 1, 2026

• input-events

  Public
  Input Events

  HTML

  •

  Other

  •1717 forks•2828 stars•6363 issues•00 pull requests•Updated May 1, 2026May 1, 2026

• cg-monitor

  Public
  Dashboard of activity from Community Groups

  JavaScript

  •2424 forks•2020 stars•55 issues•44 pull requests•Updated May 1, 2026May 1, 2026

• specberus

  Public
  Checker used at W3C to validate the compliance of Technical Reports with publication rules

  JavaScript

  •

  MIT License

  •5757 forks•9090 stars•4646 issues•66 pull requests•Updated May 1, 2026May 1, 2026

• editing

  Public
  Specs and explainers maintained by the editing task force

  HTML

  •

  Other

  •3838 forks•201201 stars•124124 issues•22 pull requests•Updated May 1, 2026May 1, 2026

• validate-repos

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

  JavaScript

  •

  Other

  •1414 forks•2121 stars•1616 issues•99 pull requests•Updated May 1, 2026May 1, 2026

• wai-evaluation-tools-list

  Public
  List of Accessibility Evaluation Tools

  accessibility

  accessibility

  JavaScript

  •1515 forks•1414 stars•1818 issues•8282 pull requests•Updated Apr 30, 2026Apr 30, 2026

• wot-cg

  Public
  Web of Things Community Group

  webweb-of-thingsinternetofthings+ 1

  webweb-of-thingsinternetofthingswot

  JavaScript

  •

  Other

  •1515 forks•2424 stars•1313 issues•77 pull requests•Updated Apr 30, 2026Apr 30, 2026

• reffy

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

  JavaScript

  •

  MIT License

  •2626 forks•8282 stars•4242 issues•33 pull requests•Updated Apr 30, 2026Apr 30, 2026

• edit-context

  Public
  EditContext API

  HTML

  •

  Other

  •1313 forks•4848 stars•2222 issues•55 pull requests•Updated Apr 30, 2026Apr 30, 2026

• sustainableweb-ig

  Public
  W3C Sustainable Web Interest Group

  sustainability

  sustainability

  Other

  •55 forks•3131 stars•88 issues•00 pull requests•Updated Apr 30, 2026Apr 30, 2026

• wai-arrm

  Public
  Accessibility Roles and Responsibilities Mapping (ARRM)

  Ruby

  •2222 forks•1414 stars•1515 issues•11 pull request•Updated Apr 30, 2026Apr 30, 2026

• gpc

  Public
  Global Privacy Control Specification

  webprivacy-online

  webprivacy-online

  HTML

  •

  Other

  •8181 forks•182182 stars•66 issues•11 pull request•Updated Apr 30, 2026Apr 30, 2026