Repositories list

• css-validator

  Public

  w3c/css-validator’s past year of commit activity
  W3C CSS Validation Service

  Java

  •

  Other

  •116116 forks•235235 stars•4747 issues•77 pull requests•Updated Apr 23, 2026Apr 23, 2026

• webref

  Public

  w3c/webref’s past year of commit activity
  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•66 pull requests•Updated Apr 23, 2026Apr 23, 2026

• lws-protocol

  Public

  w3c/lws-protocol’s past year of commit activity
  Linked Web Storage Protocol

  HTML

  •

  Other

  •99 forks•2424 stars•4545 issues•1111 pull requests•Updated Apr 23, 2026Apr 23, 2026

• bp-i18n-specdev

  Public

  w3c/bp-i18n-specdev’s past year of commit activity
  Internationalization Best Practices for Spec Developers

  i18n

  i18n

  HTML

  •

  Other

  •1919 forks•3434 stars•2626 issues•1010 pull requests•Updated Apr 23, 2026Apr 23, 2026

• cbor-ld

  Public

  w3c/cbor-ld’s past year of commit activity
  A CBOR-encoding for Linked Data.

  HTML

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  Other

  •66 forks•1818 stars•1212 issues•22 pull requests•Updated Apr 23, 2026Apr 23, 2026

• csswg-wiki

  Public

  w3c/csswg-wiki’s past year of commit activity
  CSS Working Group Wiki – community-editable documentation

  csswikiw3c+ 1

  csswikiw3cw3css

  Markdown

  •1717 forks•66 stars•00 issues•00 pull requests•Updated Apr 23, 2026Apr 23, 2026

• cg-monitor

  Public

  w3c/cg-monitor’s past year of commit activity
  Dashboard of activity from Community Groups

  JavaScript

  •2424 forks•1919 stars•55 issues•44 pull requests•Updated Apr 23, 2026Apr 23, 2026

• webauthn

  Public

  w3c/webauthn’s past year of commit activity
  Web Authentication: An API for accessing Public Key Credentials

  webauthn

  webauthn

  HTML

  •

  Other

  •271271 forks•1.4k1.4k stars•7878 issues•1414 pull requests•Updated Apr 23, 2026Apr 23, 2026

• sdw-sosa-ssn

  Public

  w3c/sdw-sosa-ssn’s past year of commit activity
  Repository of the Spatial Data on the Web Working Group for the SOSA/SSN vocabulary

  HTML

  •1010 forks•1616 stars•2020 issues•00 pull requests•Updated Apr 23, 2026Apr 23, 2026

• i18n-drafts

  Public

  w3c/i18n-drafts’s past year of commit activity
  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 23, 2026Apr 23, 2026

• svgwg

  Public

  w3c/svgwg’s past year of commit activity
  SVG Working Group specifications

  HTML

  •

  Other

  •150150 forks•761761 stars•424424 issues•1414 pull requests•Updated Apr 23, 2026Apr 23, 2026

• cg-spec-metadata

  Public

  w3c/cg-spec-metadata’s past year of commit activity
  A project to collect metadata on CG specifications

  JavaScript

  •00 forks•00 stars•00 issues•00 pull requests•Updated Apr 23, 2026Apr 23, 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

  •1414 forks•2121 stars•1616 issues•99 pull requests•Updated Apr 23, 2026Apr 23, 2026

• spec-families

  Public

  w3c/spec-families’s past year of commit activity
  List of W3C specification families

  JavaScript

  •22 forks•55 stars•22 issues•00 pull requests•Updated Apr 23, 2026Apr 23, 2026

• wcag

  Public
  Web Content Accessibility Guidelines

  HTML

  •

  Other

  •408408 forks•1.4k1.4k stars•450450 issues•9999 pull requests•Updated Apr 23, 2026Apr 23, 2026

• wcag3

  Public
  WCAG 3

  Astro

  •

  Other

  •3434 forks•140140 stars•370370 issues•1111 pull requests•Updated Apr 22, 2026Apr 22, 2026

• webvtt

  Public

  w3c/webvtt’s past year of commit activity
  WebVTT Standard

  HTML

  •

  Other

  •3333 forks•115115 stars•102102 issues•1111 pull requests•Updated Apr 22, 2026Apr 22, 2026

• ns

  Public

  w3c/ns’s past year of commit activity
  W3C namespaces

  HTML

  •55 forks•11 star•33 issues•33 pull requests•Updated Apr 22, 2026Apr 22, 2026

• data-shapes

  Public

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

  HTML

  •

  Other

  •4545 forks•148148 stars•212212 issues•1919 pull requests•Updated Apr 22, 2026Apr 22, 2026

• wai-evaluation-tools-list

  Public

  w3c/wai-evaluation-tools-list’s past year of commit activity
  List of Accessibility Evaluation Tools

  accessibility

  accessibility

  JavaScript

  •1515 forks•1313 stars•1919 issues•7979 pull requests•Updated Apr 22, 2026Apr 22, 2026

• ift-encoder

  Public

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

  C++

  •

  Other

  •66 forks•1010 stars•77 issues•00 pull requests•Updated Apr 22, 2026Apr 22, 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

  •6565 forks•368368 stars•5757 issues•55 pull requests•Updated Apr 22, 2026Apr 22, 2026

• csswg-drafts

  Public

  w3c/csswg-drafts’s past year of commit activity
  CSS Working Group Editor Drafts

  css

  css

  Bikeshed

  •

  Other

  •787787 forks•4.8k4.8k stars•4.3k4.3k issues•120120 pull requests•Updated Apr 22, 2026Apr 22, 2026

• a11y-discov-vocab

  Public

  w3c/a11y-discov-vocab’s past year of commit activity
  Repository for the maintenance of the schema.org accessibility property values for discoverability.

  accessibilitya11yvocabulary+ 2

  accessibilitya11yvocabularypublishingontology

  HTML

  •

  Other

  •1515 forks•2727 stars•2020 issues•11 pull request•Updated Apr 22, 2026Apr 22, 2026

• aria

  Public
  Accessible Rich Internet Applications (WAI-ARIA)

  HTML

  •

  Other

  •144144 forks•740740 stars•410410 issues•6262 pull requests•Updated Apr 22, 2026Apr 22, 2026

• yml2vocab

  Public

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

  rdfw3cvc-wg

  rdfw3cvc-wg

  HTML

  •

  Other

  •66 forks•2222 stars•00 issues•00 pull requests•Updated Apr 22, 2026Apr 22, 2026

• wot-binding-templates

  Public

  w3c/wot-binding-templates’s past year of commit activity
  Web of Things (WoT) Binding Templates

  HTML

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  Other

  •2424 forks•2727 stars•9595 issues•55 pull requests•Updated Apr 22, 2026Apr 22, 2026

• wot

  Public

  w3c/wot’s past year of commit activity
  Web of Things

  HTML

  •134134 forks•231231 stars•2727 issues•33 pull requests•Updated Apr 22, 2026Apr 22, 2026

• publ-a11y

  Public

  w3c/publ-a11y’s past year of commit activity
  Accessibility related discussions of the Publishing@W3C Groups

  accessibilitypublishingdigital-publishing+ 1

  accessibilitypublishingdigital-publishingpm-wg

  HTML

  •

  Other

  •77 forks•3838 stars•5757 issues•11 pull request•Updated Apr 22, 2026Apr 22, 2026

• ift-client-tests

  Public

  w3c/ift-client-tests’s past year of commit activity
  Python

  •

  Other

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