Repositories list

• data-shapes

  Public
  Data Shapes WG repo

  HTML

  •

  Other

  •40•137•198•17•Updated Dec 9, 2025Dec 9, 2025

• attribution

  Public

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

  apiprivacybrowser+ 2webadvertising

  Bikeshed

  •46•63•32•6•Updated Dec 9, 2025Dec 9, 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

  •106•383•43•1•Updated Dec 9, 2025Dec 9, 2025

• validate-repos

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

  JavaScript

  •

  Other

  •14•20•14•8•Updated Dec 9, 2025Dec 9, 2025

• patwg

  Public
  Private Advertising Technology Working Group

  Other

  •1•7•7•0•Updated Dec 8, 2025Dec 8, 2025

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  Bikeshed

  •

  Other

  •759•4.8k•4.1k•114•Updated Dec 8, 2025Dec 8, 2025

• resource-timing

  Public

  w3c/resource-timing’s past year of commit activity
  Resource Timing

  performancewebweb-application+ 4performance-metricsspecificationwebappresource-measurement

  HTML

  •

  Other

  •38•131•49•6•Updated Dec 8, 2025Dec 8, 2025

• rdf-interop

  Public
  HTML

  •

  Other

  •0•2•4•3•Updated Dec 8, 2025Dec 8, 2025

• wot-thing-description-toolchain-tmp

  Public

  w3c/wot-thing-description-toolchain-tmp’s past year of commit activity
  work area for WoT Thing Description toolchain

  Python

  •1•7•14•2•Updated Dec 8, 2025Dec 8, 2025

• spec-generator

  Public

  w3c/spec-generator’s past year of commit activity
  Service to automatically generate specs from various source formats

  TypeScript

  •

  MIT License

  •6•27•7•1•Updated Dec 8, 2025Dec 8, 2025

• charter-drafts

  Public
  Draft W3C WG and CG charters for public review

  HTML

  •71•68•14•6•Updated Dec 8, 2025Dec 8, 2025

• securityig

  Public
  Security Interest Group

  Other

  •2•4•9•0•Updated Dec 8, 2025Dec 8, 2025

• dapt

  Public
  Dubbing and Audio description Profiles of TTML2

  HTML

  •

  Other

  •5•9•39•1•Updated Dec 8, 2025Dec 8, 2025

• imsc

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

  HTML

  •

  Other

  •16•33•26•4•Updated Dec 8, 2025Dec 8, 2025

• aria

  Public

  w3c/aria’s past year of commit activity
  Accessible Rich Internet Applications (WAI-ARIA)

  HTML

  •

  Other

  •140•733•446•69•Updated Dec 8, 2025Dec 8, 2025

• epub-tests

  Public
  Test repository for EPUB3, maintained by the EPUB3 WG

  publishingepubdigital-publishing+ 1epub-wg

  HTML

  •

  Other

  •14•27•1•0•Updated Dec 8, 2025Dec 8, 2025

• secure-payment-confirmation

  Public
  Secure Payment Confirmation (SPC)

  public-keypayment-request3ds+ 2webauthnpayment-handler

  Bikeshed

  •

  Other

  •48•133•29•2•Updated Dec 8, 2025Dec 8, 2025

• groups

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

  JavaScript

  •

  MIT License

  •3•9•2•0•Updated Dec 8, 2025Dec 8, 2025

• fxtf-drafts

  Public
  Historical

  HTML

  •

  Other

  •50•80•217•9•Updated Dec 8, 2025Dec 8, 2025

• epub-specs

  Public
  Shared workspace for EPUB 3 specifications.

  publishingepubdigital-publishing+ 1epub-wg

  HTML

  •

  Other

  •63•346•35•5•Updated Dec 8, 2025Dec 8, 2025

• wot

  Public
  Web of Things

  HTML

  •133•228•28•3•Updated Dec 8, 2025Dec 8, 2025

• pm-wg

  Public
  Publishing Maintenance Working Group

  HTML

  •

  Other

  •4•3•1•0•Updated Dec 8, 2025Dec 8, 2025

• wot-cg

  Public
  Web of Things Community Group

  webweb-of-thingsinternetofthings+ 1wot

  JavaScript

  •

  Other

  •14•22•14•5•Updated Dec 8, 2025Dec 8, 2025

• wai-website

  Public
  This repository hosts the W3C WAI web site.

  accessibilityw3c

  HTML

  •

  Other

  •973•106•346•49•Updated Dec 8, 2025Dec 8, 2025

• wcag-act-rules

  Public
  WCAG Conformance Test Rules

  HTML

  •

  Other

  •16•26•34•8•Updated Dec 8, 2025Dec 8, 2025

• wcag

  Public

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

  HTML

  •

  Other

  •333•1.3k•497•86•Updated Dec 8, 2025Dec 8, 2025

• push-api

  Public
  Push API

  HTML

  •

  Other

  •42•158•37•4•Updated Dec 8, 2025Dec 8, 2025

• spec-dashboard

  Public
  Tools to monitor development of specs across groups

  JavaScript

  •11•28•7•0•Updated Dec 8, 2025Dec 8, 2025

• webai-roadmap

  Public
  This document summarizes the various technologies developed in W3C that increase the capabilities of Web and AI.

  HTML

  •

  Other

  •0•0•0•0•Updated Dec 8, 2025Dec 8, 2025

• strudy

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

  JavaScript

  •

  MIT License

  •6•8•24•6•Updated Dec 8, 2025Dec 8, 2025