Repositories list

• webref

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

  cssidlweb-platform+ 1

  cssidlweb-platformdefinitions-data

  JavaScript

  •

  MIT License

  •121121 forks•428428 stars•5151 issues•88 pull requests•Updated Apr 16, 2026Apr 16, 2026

• wai-website

  Public
  This repository hosts the W3C WAI web site.

  accessibilityw3c

  accessibilityw3c

  HTML

  •

  Other

  •1.3k1.3k forks•123123 stars•347347 issues•5050 pull requests•Updated Apr 16, 2026Apr 16, 2026

• socialwg

  Public
  Social Web Working Group

  Other

  •22 forks•66 stars•11 issue•00 pull requests•Updated Apr 16, 2026Apr 16, 2026

• ift-encoder

  Public
  A web fonts IFT encoder implementation

  C++

  •

  Other

  •66 forks•1010 stars•77 issues•00 pull requests•Updated Apr 16, 2026Apr 16, 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 16, 2026Apr 16, 2026

• wai-evaluation-tools-list

  Public
  List of Accessibility Evaluation Tools

  accessibility

  accessibility

  JavaScript

  •1515 forks•1313 stars•1919 issues•7777 pull requests•Updated Apr 16, 2026Apr 16, 2026

• lws-protocol

  Public
  Linked Web Storage Protocol

  HTML

  •

  Other

  •99 forks•2424 stars•4343 issues•1111 pull requests•Updated Apr 16, 2026Apr 16, 2026

• trusted-types

  Public
  A browser API to prevent DOM-Based Cross Site Scripting in modern web applications.

  javascriptpolyfillsecurity+ 4

  javascriptpolyfillsecuritydomw3cxsstrusted-types

  JavaScript

  •

  Other

  •8484 forks•653653 stars•5050 issues•55 pull requests•Updated Apr 15, 2026Apr 15, 2026

• csswg-drafts

  Public
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •786786 forks•4.8k4.8k stars•4.3k4.3k issues•120120 pull requests•Updated Apr 15, 2026Apr 15, 2026

• vc-barcodes

  Public
  Securing optical barcodes using verifiable credentials.

  credentialsw3cmrz+ 2

  credentialsw3cmrzpdf417verifiable

  HTML

  •

  Other

  •55 forks•99 stars•1717 issues•33 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wot-marketing

  Public
  Web of Things (WoT) Marketing

  HTML

  •

  Other

  •1919 forks•1515 stars•2626 issues•22 pull requests•Updated Apr 15, 2026Apr 15, 2026

• browser-specs

  Public
  A machine-readable list of Web specifications

  JavaScript

  •

  Other

  •5454 forks•306306 stars•7878 issues•55 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wcag-act-rules

  Public
  WCAG Conformance Test Rules

  HTML

  •

  Other

  •1616 forks•3030 stars•3636 issues•88 pull requests•Updated Apr 15, 2026Apr 15, 2026

• webauthn

  Public
  Web Authentication: An API for accessing Public Key Credentials

  webauthn

  webauthn

  HTML

  •

  Other

  •269269 forks•1.4k1.4k stars•7676 issues•1212 pull requests•Updated Apr 15, 2026Apr 15, 2026

• css-validator

  Public
  W3C CSS Validation Service

  Java

  •

  Other

  •116116 forks•235235 stars•5252 issues•77 pull requests•Updated Apr 15, 2026Apr 15, 2026

• cbor-ld

  Public
  A CBOR-encoding for Linked Data.

  HTML

  •

  Other

  •66 forks•1717 stars•1313 issues•11 pull request•Updated Apr 15, 2026Apr 15, 2026

• yaml-ld

  Public
  CG specification for YAML-LD and UCR

  yamljsonlinked-data+ 2

  yamljsonlinked-datardfw3c

  HTML

  •

  Other

  •88 forks•3232 stars•2828 issues•22 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wot-binding-registry

  Public
  Web of Things (WoT) Bindings Registry

  HTML

  •

  Other

  •11 fork•11 star•66 issues•11 pull request•Updated Apr 15, 2026Apr 15, 2026

• vc-wg

  Public
  Working home repository of the W3C Verifiable Credentials WG

  vcvc-wg

  vcvc-wg

  HTML

  •

  Other

  •00 forks•33 stars•33 issues•00 pull requests•Updated Apr 15, 2026Apr 15, 2026

• charter-drafts

  Public
  Draft W3C WG and CG charters for public review

  HTML

  •7676 forks•7070 stars•1717 issues•55 pull requests•Updated Apr 15, 2026Apr 15, 2026

• aria-practices

  Public
  WAI-ARIA Authoring Practices Guide (APG)

  csshtmlaria

  csshtmlaria

  HTML

  •

  Other

  •463463 forks•1.3k1.3k stars•635635 issues•5858 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wai-aria-practices

  Public
  WAI Website Resource for aria-practices guidelines

  JavaScript

  •1212 forks•2020 stars•2828 issues•2929 pull requests•Updated Apr 15, 2026Apr 15, 2026

• html-aria

  Public
  ARIA in HTML

  HTML

  •

  Other

  •4949 forks•196196 stars•5151 issues•66 pull requests•Updated Apr 15, 2026Apr 15, 2026

• json-ld-api

  Public
  JSON-LD 1.1 Processing Algorithms and API Specification

  json-ld-wgjson-ld-11

  json-ld-wgjson-ld-11

  HTML

  •

  Other

  •3636 forks•103103 stars•6363 issues•1616 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wot-thing-description

  Public
  Web of Things (WoT) Thing Description

  HTML

  •

  Other

  •6565 forks•150150 stars•239239 issues•33 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wot

  Public
  Web of Things

  HTML

  •134134 forks•231231 stars•2727 issues•33 pull requests•Updated Apr 15, 2026Apr 15, 2026

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •402402 forks•1.4k1.4k stars•451451 issues•9898 pull requests•Updated Apr 15, 2026Apr 15, 2026

• cogai

  Public
  for work by the Cognitive AI community group

  HTML

  •

  Other

  •2626 forks•7474 stars•2828 issues•33 pull requests•Updated Apr 15, 2026Apr 15, 2026

• epub-specs

  Public
  Shared workspace for EPUB 3 specifications.

  publishingepubdigital-publishing+ 1

  publishingepubdigital-publishingepub-wg

  HTML

  •

  Other

  •6565 forks•366366 stars•6363 issues•88 pull requests•Updated Apr 15, 2026Apr 15, 2026

• clreq

  Public
  Requirements for Chinese Text Layout

  i18nw3cchinese

  i18nw3cchinese

  HTML

  •

  Other

  •6464 forks•792792 stars•182182 issues•44 pull requests•Updated Apr 15, 2026Apr 15, 2026