👓 A curated list of CSS Flexible Box Layout Module or only Flexbox.

• UpdatedSep 7, 2023

A tool for creating technical documents and web standards

• UpdatedNov 26, 2025
• JavaScript

Remote control interface that enables introspection and control of user agents.

• UpdatedOct 28, 2025
• HTML

XSD (XML Schema Definition) parser and Go/C/Java/Rust/TypeScript code generator

• UpdatedNov 17, 2025
• Go

Async Clipboard API Proposal

• UpdatedApr 24, 2018
• HTML

🔔 Linked Data Notifications

• UpdatedMar 28, 2025
• HTML

Payment Method Identifiers specification

• UpdatedSep 7, 2022
• HTML

The Arc Engine is an ultra-lite, fast, memory efficient HTML5/ES6 alternative to Angular, React, VUE, Svelte.

• UpdatedApr 17, 2024
• JavaScript

xml-serializer is a complete JavaScript implementation of the W3C xml serialization specifications

• UpdatedDec 7, 2022
• JavaScript

Implementation of W3C WebDriver protocol in golang

• UpdatedJul 3, 2020
• Go

Specification for getViewportMedia, an API to capture the content of a browser viewport.

• UpdatedOct 9, 2024
• HTML

A Media Fragment Server in Node.js.

• UpdatedApr 6, 2017
• JavaScript

🏄‍♂️ An Outsider’s Guide to the W3C

• UpdatedAug 19, 2024
• Markdown

Always current cross-browser font support based on the caniuse.com API and Embed service.

• UpdatedApr 9, 2020

Library for generating XML and HTML with PHP

• UpdatedJan 30, 2022
• PHP

The test collection for the xgen

• UpdatedSep 25, 2025
• Rust

A powerful, rich text editor for web content creation

• UpdatedJan 11, 2018
• JavaScript

SVG Frame-by-Frame Animation Generator svg2fbf - Create SVG animations from a series of SVG frames without the need of javascript or css.

• UpdatedNov 18, 2025
• HTML

Ruby Server-Sent Events client.

• UpdatedMay 15, 2018
• Ruby

Start using Custom Elements

• UpdatedAug 9, 2017
• JavaScript