Repositories list

• webvtt

  Public
  WebVTT Standard

  HTML

  •

  Other

  •31•110•98•10•Updated Mar 14, 2025Mar 14, 2025

• wot-cg

  Public
  Web of Things Community Group

  webweb-of-thingsinternetofthings+ 1wot

  JavaScript

  •

  Other

  •11•18•14•10•Updated Mar 14, 2025Mar 14, 2025

• markup-validator

  Public
  htmlhtml5w3c

  HTML

  •34•123•34•4•Updated Mar 14, 2025Mar 14, 2025

• rdf-turtle

  Public
  HTML

  •

  Other

  •4•9•6•1•Updated Mar 14, 2025Mar 14, 2025

• AB-public

  Public
  Advisory Board repository for materials not meant to be restricted to W3C Members

  HTML

  •15•17•19•2•Updated Mar 14, 2025Mar 14, 2025

• mathml

  Public
  MathML4 editors draft

  HTML

  •

  Other

  •21•67•36•1•Updated Mar 14, 2025Mar 14, 2025

• data-shapes

  Public
  Data Shapes WG repo

  HTML

  •

  Other

  •30•106•102•3•Updated Mar 14, 2025Mar 14, 2025

• css-validator

  Public
  W3C CSS Validation Service

  Java

  •

  Other

  •108•214•40•7•Updated Mar 14, 2025Mar 14, 2025

• webcodecs

  Public
  WebCodecs is a flexible web API for encoding and decoding audio and video.

  HTML

  •

  Other

  •141•1.1k•127•7•Updated Mar 14, 2025Mar 14, 2025

• webref

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

  cssidlweb-platform+ 1definitions-data

  JavaScript

  •

  MIT License

  •81•331•36•4•Updated Mar 14, 2025Mar 14, 2025

• aria-at

  Public
  Assistive Technology ARIA Experience Assessment

  ariaapgaria-at+ 3aria-practicesaccessibilitya11y

  JavaScript

  •

  Other

  •30•163•219•47•Updated Mar 14, 2025Mar 14, 2025

• browser-specs

  Public
  A machine-readable list of Web specifications

  JavaScript

  •

  Other

  •46•255•44•5•Updated Mar 14, 2025Mar 14, 2025

• epub-specs

  Public
  Shared workspace for EPUB 3 specifications.

  publishingdigital-publishingepub-wg+ 1epub

  HTML

  •

  Other

  •61•320•24•6•Updated Mar 14, 2025Mar 14, 2025

• breakouts-day-2025

  Public
  Remote event for the W3C community to share new ideas

  1•2•16•0•Updated Mar 14, 2025Mar 14, 2025

• tpac-breakouts

  Public
  Documentation and Management of TPAC plenary day breakouts

  JavaScript

  •

  Other

  •12•7•30•3•Updated Mar 14, 2025Mar 14, 2025

• ai-accessibility

  Public
  https://w3c.github.io/ai-accessibility/

  HTML

  •

  Other

  •0•1•7•0•Updated Mar 14, 2025Mar 14, 2025

• sparql-query

  Public
  HTML

  •

  Other

  •0•9•47•2•Updated Mar 14, 2025Mar 14, 2025

• rdf-concepts

  Public
  HTML

  •

  Other

  •4•20•19•1•Updated Mar 14, 2025Mar 14, 2025

• logos

  Public
  W3C logos

  2•2•1•1•Updated Mar 14, 2025Mar 14, 2025

• rdf-semantics

  Public
  HTML

  •

  Other

  •4•13•12•6•Updated Mar 14, 2025Mar 14, 2025

• wai-evaluation-tools-list

  Public
  List of Accessibility Evaluation Tools

  accessibility

  JavaScript

  •8•3•16•39•Updated Mar 14, 2025Mar 14, 2025

• dapt

  Public
  Dubbing and Audio description Profiles of TTML2

  HTML

  •

  Other

  •3•7•49•5•Updated Mar 14, 2025Mar 14, 2025

• wp-theme-w3c

  Public
  PHP

  •1•0•0•0•Updated Mar 14, 2025Mar 14, 2025

• w3c-website-templates-bundle

  Public
  Symfony Bundle containing generic templates for W3C Website

  Twig

  •

  Other

  •14•76•0•2•Updated Mar 14, 2025Mar 14, 2025

• feedvalidator

  Public
  W3C-customized version of the feedvalidator (forked from https://github.com/rubys/feedvalidator/)

  Python

  •

  Other

  •40•89•7•0•Updated Mar 14, 2025Mar 14, 2025

• wai-arrm

  Public
  Accessibility Roles and Responsibilities Mapping (ARRM)

  Ruby

  •17•7•10•2•Updated Mar 14, 2025Mar 14, 2025

• wai-website

  Public
  This repository hosts the WAI Website.

  accessibilityw3c

  HTML

  •

  Other

  •443•78•358•68•Updated Mar 14, 2025Mar 14, 2025

• aria

  Public
  Accessible Rich Internet Applications (WAI-ARIA)

  HTML

  •

  Other

  •127•677•415•83•Updated Mar 14, 2025Mar 14, 2025

• i18n-tests

  Public
  Internationalization tests run with the W3C i18n test suite.

  HTML

  •15•17•5•3•Updated Mar 14, 2025Mar 14, 2025

• specberus

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

  HTML

  •

  MIT License

  •55•85•48•0•Updated Mar 14, 2025Mar 14, 2025