World Wide Web Consortium

Media Capture and Streams specification (aka getUserMedia)

Test Suites for Web Platform specifications—including WHATWG, W3C and others

The WebDriver API and wire protocol

TTML Profiles for Internet Media Subtitles and Captions 1.0 (IMSC1)

Accessible Rich Internet Applications (WAI-ARIA)

Web Components specifications

RDF Data Shapes WG repo

Mirror of CSS WG Editor Draft repository - https://hg.csswg.org/drafts

A tool that helps you write web standards

Repository for the WebVR Community Group and the WebVR Specification.

API to create a MediaStream from Media Element

Repository for the Spatial Data on the Web Working Group

WebAppSec Content Security Policy

WebIDL parser

ORTC Community Group specification repository (see W3C WebRTC for official standards track)

Mirror of https://hg.fxtf.org/drafts

A web-platform-tests harness

Web Annotation Working Group repository, see README for links to specs

MediaStream Recording

Mirror of https://hg.css-houdini.org/drafts

Media Capture Screen Capture specification

CSS WG test repository (mirrored at https://hg.csswg.org/test/)

Profile registry for TTML

Clipboard API and events

team-strat, on GitHub, working in public. Current state: DRAFT

WebRTC 1.0 API