World Wide Web Consortium ORG

Web Authentication: An API for accessing Public Key Credentials

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

Manifest for web apps

W3C Verifiable Credentials v2.0 Specification

Global Privacy Control Specification

Maintenance of the PNG specification

CSS Working Group Editor Drafts

Service Workers

Intersection Observer

Deliverables of the HTML Working Group until October 2018

The conformance checker for EPUB publications

No description.

Web Content Accessibility Guidelines

No description.

WAI-ARIA Authoring Practices Guide (APG)

WebTransport is a web API for flexible data transport

Requirements for Chinese Text Layout

SVG Working Group specifications

Accessible Rich Internet Applications (WAI-ARIA)

Charter and administrivia for the WebExtensions Community Group (WECG)

Web Application Security Working Group repo

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

Bidirectional WebDriver protocol for browser automation

Device Bound Session Credentials: A Protocol for Protecting From Cookie Theft

Web Advertising BG - https://www.w3.org/community/web-adv/

W3C Decentralized Identifier Specification

Machine-readable references of terms defined in web browser specifications

W3C Web Performance Working Group repo

A mechanism to selectively enable and disable browser features and APIs

Shared workspace for EPUB 3 specifications.

A machine-readable list of Web specifications

WebSub Spec in Social Web Working Group

The W3C Web Cryptography API

The W3C API

Paint Timing

W3C Website feedback and bug reports

The document repo for the Web Payments Working Group

W3C Process Document

Long Task API

W3C CSS Validation Service

Web of Things

ARIA in HTML

Positive Work Environment Community Group

Encrypted Media Extensions

team-strat, on GitHub, working in public.

Repository for the Spatial Data on the Web Working Group

WCAG 3

Push API

Data Shapes WG repo

Check links and anchors in Web pages or full Web sites.

Decentralized Identifier Ecosystem Extensions

This repository hosts the W3C WAI web site.

No description.

Generic Sensor API

An HTTP API for performing verifiable credential lifecycle management.

Media Capture and Streams specification (aka getUserMedia)

Text Layout Requirements for Japanese

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

Unicorn - W3C's Unified Validator

Webmention spec

Navigation Timing

HTML Accessibility API Mappings

Performance Timeline

Attribution API

JSON-LD 1.1 Processing Algorithms and API Specification

Permissions API

Specification for the LargestContentfulPaint API

Window Management API

W3C Transitions

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

Media Capture Screen Capture specification

Home pages, charters, style-guides, and similar documents related to the W3C Internationalization Activity.

W3C Web Publications

Symfony Bundle containing generic templates for W3C Website

Reffy is a Web spec crawler and analyzer tool. It is notably used to update Webref

Media Capabilities API

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

A web API proposal that provides information about available compute capacity

A place to edit articles, tutorials, and the like for the /International subtree of the W3C site. Also, captures issues and comments.

Draft W3C WG and IG charters for public review

Presentation API

Accessible Name and Description Computation

Repository for the RDF Tests Community Group

Decentralized Identifier Use Cases and Requirements v1.0

MathML Core draft

Semantics to describe user personalization preferences.

A linked data proof suite specification for BBS+ signatures

EPUB 3 Community Group Repository

Selection API

W3C Data Integrity Specification

EditContext API

MediaStreamTrack Insertable Media Processing using Streams

AT Driver defines a protocol for introspection and remote control of assistive technology software, using a bidirectional communication channel.

WCAG2ICT deliverable of Accessibility Guidelines WG

Web of Things (WoT) Scripting API

Service to automatically generate specs from various source formats

New publication workflow at W3C — main component

Web Sustainability Guidelines (WSG)

GitHub Action to build ReSpec/Bikeshed specs, validate output and publish to GitHub pages or W3C

ODRL Community Group Repository

CG specification for YAML-LD and UCR

Accessibility related discussions of the Publishing@W3C Groups

Guidance from the Mobile Accessibility Task Force (MATF)

Frontend website for w3.org

Southeast Asian layout task force

Internationalization Best Practices for Spec Developers

Audiobook profile of a Web Publication

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

Use cases for WebRTC NV

A JavaScript client for the W3C API

W3C Sustainable Web Interest Group

Test repository for EPUB3, maintained by the EPUB3 WG

W3C Calendar

WCAG Conformance Test Rules

Tools to monitor development of specs across groups

One interface to find all group contributors and in IPR bind them

A mechanism to use JSON Schemas with Verifiable Credentials

Extensions to Media Capture and Streams by the WebRTC Working Group

Requirements for Japanese Digital Text Layout

Linked Web Storage Protocol

Repository for the RTPTransport specification of the WebRTC Working Group

[MOVED] A tool for creating technical documents and web standards

Payment Method Identifiers specification

RELEASED DRAFT: Decentralized Identifier Resolution (DID Resolution) 0.2 Specification

Character Model for the World Wide Web: String Matching and Searching

Generate RDFS vocabulary files from YAML

No description.

Accelerometer

Test whether W3C spec repos match a set of best practices

WAI Website Resource for aria-practices guidelines

Dashboard of activity from Community Groups

A CBOR-encoding for Linked Data.

No description.

A place to hold discussions on i18n topics, and to put documents that summarise, support or initiate those discussions.

Web Payments HTTP APIs for payment app registration, payment requests, and payment responses.

W3C EPUB4

Home page of the Audiobooks Working Group

No description.

Repository of the Spatial Data on the Web Working Group for the SOSA/SSN vocabulary

List of Accessibility Evaluation Tools

W3C packaged Web Publications

Web of Things (WoT) Marketing

Repository for ATAG Report Tool

W3C Decentralized Characteristics Rubric v1.0

Web API allowing capturing applications limited control over captured surfaces.

Converts IRC minutes to HTML

Accessibility Roles and Responsibilities Mapping (ARRM)

Test suite for WOFF 2.0

Tools and pages to track horizontal issues

No description.

A web fonts IFT encoder implementation

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

Converts IRC minutes to HTML

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

No description.

Magnetometer

Web Component of the Accessibility Support Database

African language enablement for the Web

List of W3C Verifiable Credentials Implementations

Securing optical barcodes using verifiable credentials.

Documentation and Management of TPAC plenary day breakouts

CSS Working Group Wiki – community-editable documentation

Controlled Identifier Documents

WoT Security Best Practices

The Recognized Entities specification defines Verifiable Credentials for recognizing entities and the actions they perform.

Specification for Web Payments payment method manifests

Accessibility Support Database

Timed Text Working Group and PNG

The W3C Manual of Style

Insafe is a Node.js package which resolves and checks that an URL is well-formed.

TV Control API specification - https://w3c.github.io/tvcontrol-api/

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

Unified streams of information for W3C activities

W3C Jekyll theme

No description.

This repo used by ECommerce for humans and AI Agents workshop homepage

Questions and principles for designing Web features with permissions and asking for permissions on the Web

The Profiles Vocabulary

Inaccessibility of CAPTCHA

A Threat Model for the Web

No description.

List of W3C specification families

Working home repository of the W3C Verifiable Credentials WG

HTML Ruby Markup Extensions

No description.

Publishing Maintenance Working Group

W3C namespaces

Enabling the Web for languages of the Americas

No description.

No description.

DPP & Business Wallet Vocabularies TF

W3C VCDM extension for confidence method

No description.

Compiled, generated version of woff2-tests for standalone use without dependencies to make them

The SDW WG's repository for the Time Ontology in OWL Recommendation

A project to collect metadata on CG specifications

DID Resolution specification test suite: https://www.w3.org/TR/did-resolution/

Repository set up to collect and organize breakout session proposals for TPAC 2026

Entry point for EPUB documents and sites

Mini-workshops @TPAC2026