Repositories list

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •372•1.4k•486•95•Updated Mar 13, 2026Mar 13, 2026

• webref

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

  cssidlweb-platform+ 1

  cssidlweb-platformdefinitions-data

  JavaScript

  •

  MIT License

  •118•414•50•4•Updated Mar 13, 2026Mar 13, 2026

• validate-repos

  Public

  w3c/validate-repos’s past year of commit activity
  Test whether W3C spec repos match a set of best practices

  JavaScript

  •

  Other

  •14•21•16•9•Updated Mar 13, 2026Mar 13, 2026

• data-shapes

  Public

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

  HTML

  •

  Other

  •44•144•201•14•Updated Mar 13, 2026Mar 13, 2026

• ift-encoder

  Public

  w3c/ift-encoder’s past year of commit activity
  A web fonts IFT encoder implementation

  C++

  •

  Other

  •6•10•4•0•Updated Mar 12, 2026Mar 12, 2026

• webappsec-permissions-policy

  Public

  w3c/webappsec-permissions-policy’s past year of commit activity
  A mechanism to selectively enable and disable browser features and APIs

  Bikeshed

  •

  Other

  •179•421•97•11•Updated Mar 12, 2026Mar 12, 2026

• webauthn

  Public
  Web Authentication: An API for accessing Public Key Credentials

  webauthn

  webauthn

  HTML

  •

  Other

  •265•1.4k•72•14•Updated Mar 12, 2026Mar 12, 2026

• webvtt

  Public
  WebVTT Standard

  HTML

  •

  Other

  •32•117•101•12•Updated Mar 12, 2026Mar 12, 2026

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •779•4.8k•4.3k•139•Updated Mar 12, 2026Mar 12, 2026

• sustainableweb-ig

  Public

  w3c/sustainableweb-ig’s past year of commit activity
  W3C Sustainable Web Interest Group

  sustainability

  sustainability

  Other

  •5•28•6•0•Updated Mar 12, 2026Mar 12, 2026

• ai-accessibility

  Public

  w3c/ai-accessibility’s past year of commit activity
  https://w3c.github.io/ai-accessibility/

  HTML

  •

  Other

  •3•11•14•0•Updated Mar 12, 2026Mar 12, 2026

• imsc

  Public
  TTML Profiles for Internet Media Subtitles and Captions (IMSC)

  HTML

  •

  Other

  •16•33•18•0•Updated Mar 12, 2026Mar 12, 2026

• publ-a11y

  Public
  Accessibility related discussions of the Publishing@W3C Groups

  accessibilitypublishingdigital-publishing+ 1

  accessibilitypublishingdigital-publishingpm-wg

  HTML

  •

  Other

  •6•36•55•0•Updated Mar 12, 2026Mar 12, 2026

• wcag2ict

  Public
  WCAG2ICT deliverable of Accessibility Guidelines WG

  JavaScript

  •

  Other

  •8•40•59•6•Updated Mar 12, 2026Mar 12, 2026

• aria

  Public
  Accessible Rich Internet Applications (WAI-ARIA)

  HTML

  •

  Other

  •144•741•443•59•Updated Mar 12, 2026Mar 12, 2026

• mathml

  Public

  w3c/mathml’s past year of commit activity
  MathML4 editors draft

  HTML

  •

  Other

  •20•75•32•1•Updated Mar 12, 2026Mar 12, 2026

• wcag-act-rules

  Public

  w3c/wcag-act-rules’s past year of commit activity
  WCAG Conformance Test Rules

  HTML

  •

  Other

  •16•28•35•5•Updated Mar 12, 2026Mar 12, 2026

• cg-program

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

  HTML

  •4•7•13•3•Updated Mar 12, 2026Mar 12, 2026

• webextensions

  Public

  w3c/webextensions’s past year of commit activity
  Charter and administrivia for the WebExtensions Community Group (WECG)

  Bikeshed

  •

  Other

  •79•685•425•24•Updated Mar 12, 2026Mar 12, 2026

• webrtc-pc

  Public

  w3c/webrtc-pc’s past year of commit activity
  WebRTC 1.0 API

  webrtcspecification

  webrtcspecification

  HTML

  •

  Other

  •114•479•79•5•Updated Mar 12, 2026Mar 12, 2026

• secure-payment-confirmation

  Public
  Secure Payment Confirmation (SPC)

  public-keypayment-request3ds+ 2

  public-keypayment-request3dswebauthnpayment-handler

  Bikeshed

  •

  Other

  •49•139•28•3•Updated Mar 12, 2026Mar 12, 2026

• wcag3

  Public
  WCAG 3

  Astro

  •

  Other

  •32•130•351•7•Updated Mar 12, 2026Mar 12, 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

  •69•75•115•27•Updated Mar 12, 2026Mar 12, 2026

• yml2vocab

  Public

  w3c/yml2vocab’s past year of commit activity
  Generate RDFS vocabulary files from YAML

  rdfw3cvc-wg

  rdfw3cvc-wg

  HTML

  •

  Other

  •5•22•0•0•Updated Mar 12, 2026Mar 12, 2026

• epub-specs

  Public

  w3c/epub-specs’s past year of commit activity
  Shared workspace for EPUB 3 specifications.

  publishingepubdigital-publishing+ 1

  publishingepubdigital-publishingepub-wg

  HTML

  •

  Other

  •65•363•58•5•Updated Mar 12, 2026Mar 12, 2026

• guide

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

  HTML

  •58•67•57•6•Updated Mar 12, 2026Mar 12, 2026

• webrtc-extensions

  Public
  A repository for experimental additions to the WebRTC API

  webrtc

  webrtc

  HTML

  •

  Other

  •17•66•62•1•Updated Mar 12, 2026Mar 12, 2026

• tpac-breakouts

  Public

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

  JavaScript

  •

  Other

  •7•10•30•4•Updated Mar 12, 2026Mar 12, 2026

• editing

  Public
  Specs and explainers maintained by the editing task force

  HTML

  •

  Other

  •38•205•123•0•Updated Mar 12, 2026Mar 12, 2026

• wai-website

  Public
  This repository hosts the W3C WAI web site.

  accessibilityw3c

  accessibilityw3c

  HTML

  •

  Other

  •1.2k•117•349•55•Updated Mar 12, 2026Mar 12, 2026