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•428428 stars•5151 issues•66 pull requests•Updated Apr 25, 2026Apr 25, 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 Apr 25, 2026Apr 25, 2026

• ruby-tts-req

  Public
  Text to Speech of Electronic Documents Containing Ruby: User Requirements

  HTML

  •

  Other

  •22 forks•22 stars•33 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• wai-aria-practices

  Public
  WAI Website Resource for aria-practices guidelines

  JavaScript

  •1212 forks•2020 stars•2828 issues•3232 pull requests•Updated Apr 24, 2026Apr 24, 2026

• aria-practices

  Public
  WAI-ARIA Authoring Practices Guide (APG)

  csshtmlaria

  csshtmlaria

  HTML

  •

  Other

  •464464 forks•1.3k1.3k stars•638638 issues•6161 pull requests•Updated Apr 24, 2026Apr 24, 2026

• activitystreams

  Public
  Activity Streams 2.0

  socialsocial-networkformat+ 5

  socialsocial-networkformatfeedspecificationactivitiesas2activitystreams

  HTML

  •

  Other

  •6666 forks•306306 stars•110110 issues•2525 pull requests•Updated Apr 24, 2026Apr 24, 2026

• css-validator

  Public
  W3C CSS Validation Service

  Java

  •

  Other

  •116116 forks•235235 stars•4646 issues•77 pull requests•Updated Apr 24, 2026Apr 24, 2026

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •787787 forks•4.8k4.8k stars•4.3k4.3k issues•120120 pull requests•Updated Apr 24, 2026Apr 24, 2026

• cogai

  Public
  for work by the Cognitive AI community group

  HTML

  •

  Other

  •2727 forks•7676 stars•2828 issues•33 pull requests•Updated Apr 24, 2026Apr 24, 2026

• wai-evaluation-tools-list

  Public
  List of Accessibility Evaluation Tools

  accessibility

  accessibility

  JavaScript

  •1515 forks•1313 stars•1919 issues•8484 pull requests•Updated Apr 24, 2026Apr 24, 2026

• N3

  Public
  W3C's Notation 3 (N3) Community Group

  HTML

  •1717 forks•5353 stars•4343 issues•66 pull requests•Updated Apr 24, 2026Apr 24, 2026

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •409409 forks•1.4k1.4k stars•451451 issues•103103 pull requests•Updated Apr 24, 2026Apr 24, 2026

• webauthn

  Public
  Web Authentication: An API for accessing Public Key Credentials

  webauthn

  webauthn

  HTML

  •

  Other

  •272272 forks•1.4k1.4k stars•7878 issues•1414 pull requests•Updated Apr 24, 2026Apr 24, 2026

• did-resolution

  Public
  RELEASED DRAFT: Decentralized Identifier Resolution (DID Resolution) 0.2 Specification

  workitemdid-wg

  workitemdid-wg

  HTML

  •

  Other

  •2222 forks•2222 stars•3232 issues•88 pull requests•Updated Apr 24, 2026Apr 24, 2026

• wot-marketing

  Public
  Web of Things (WoT) Marketing

  HTML

  •

  Other

  •1919 forks•1515 stars•3131 issues•33 pull requests•Updated Apr 24, 2026Apr 24, 2026

• rdf-turtle

  Public
  HTML

  •

  Other

  •77 forks•1919 stars•66 issues•11 pull request•Updated Apr 24, 2026Apr 24, 2026

• yml2vocab

  Public
  Generate RDFS vocabulary files from YAML

  rdfw3cvc-wg

  rdfw3cvc-wg

  HTML

  •

  Other

  •66 forks•2222 stars•00 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• publishingcg

  Public
  Publishing Community Group *** Home for the incubation of publishing standards

  publishingdigital-publishingpubl-wg

  publishingdigital-publishingpubl-wg

  HTML

  •

  Other

  •44 forks•3030 stars•5252 issues•11 pull request•Updated Apr 24, 2026Apr 24, 2026

• cg-program

  Public
  Repository to track issues and improvements with the W3C Community Groups and Business Groups program

  HTML

  •44 forks•77 stars•1313 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• image-resource

  Public
  An ImageResource definition for web APIs

  HTML

  •

  Other

  •33 forks•66 stars•22 issues•11 pull request•Updated Apr 24, 2026Apr 24, 2026

• i18n-drafts

  Public
  A place to edit articles, tutorials, and the like for the /International subtree of the W3C site. Also, captures issues and comments.

  i18nunicodew3c

  i18nunicodew3c

  HTML

  •7171 forks•7676 stars•119119 issues•4444 pull requests•Updated Apr 24, 2026Apr 24, 2026

• html-aam

  Public
  HTML Accessibility API Mappings

  2828 forks•114114 stars•118118 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• core-aam

  Public
  Core Accessibility API Mappings

  1010 forks•4646 stars•8888 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• accname

  Public
  Accessible Name and Description Computation

  2424 forks•6767 stars•104104 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• svg-aam

  Public
  SVG Accessibility API Mappings

  99 forks•2525 stars•3131 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• aria

  Public
  Accessible Rich Internet Applications (WAI-ARIA)

  HTML

  •

  Other

  •144144 forks•740740 stars•410410 issues•6161 pull requests•Updated Apr 24, 2026Apr 24, 2026

• ift-client-tests

  Public
  Python

  •

  Other

  •44 forks•22 stars•2525 issues•22 pull requests•Updated Apr 24, 2026Apr 24, 2026

• mathml-aam

  Public
  Accessibility API Mappings for MathML

  66 forks•55 stars•1414 issues•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• graphics-aam

  Public
  General graphics Accessibility API mappings

  00 forks•33 stars•11 issue•00 pull requests•Updated Apr 24, 2026Apr 24, 2026

• groups

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

  JavaScript

  •

  MIT License

  •44 forks•1010 stars•11 issue•00 pull requests•Updated Apr 24, 2026Apr 24, 2026