Test suites for Web platform specs — including WHATWG, W3C, and others

🎥 Generate high-quality video editing data with Ditto, a scalable pipeline that trains advanced instruction-based editing models.

HTML validity reporting tool

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

Eclipse Ditto™: Digital Twin framework of Eclipse IoT - main repository

The Nu Html Checker (vnu)

CSS Linter for PHP

🧘 Rewrite of a fully-featured GraphQL Server with focus on easy setup, performance & great developer experience. The core of Yoga implements WHATWG Fetch API and can run/deploy on any JS environment.

Archiving and transforming community documentation notes into a memex

Use DTCG tokens JSON to generate code for web, mobile, native apps, and more

🌏 Web Platform features dashboard

WebKit's positions on emerging web specifications

AGNTCY Identity Service serves as the central hub for managing and verifying digital identities for your Agentic Services.

Maintain an open standard for UI and promote its adherence and adoption.

The smallest, fastest, and most complete CSS Color Level 5 engine ever built.

A machine-readable overview of tags used on the web.

Goheader is a comprehensive Go library that handles HTTP header fields. It defines constants for various standard HTTP headers such as AIM, Accept, AcceptCH, etc as well as supporting constructors.

Generate RDFS vocabulary files from YAML

W3C Semantic Agent Communication Community Group

Where the GPU for the Web work happens!