The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.
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Updated
Mar 28, 2026 - Markdown
The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.
The adaptive interface system for modern web experiences.
Test suites for Web platform specs — including WHATWG, W3C, and others
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
The Nu Html Checker (vnu)
Streams Standard
💡 dokieli is a clientside editor for decentralised article publishing, annotations and social interactions
⬆ Dead simple, dependency-less, spec-compliant server-sent events implementation written in TypeScript
A tool for creating technical documents and web standards
Календарь событий по фронтенду
Source code for webcompat.com
A new URL type for Swift
How to read the ECMAScript specification (ECMA-262)
A curated list of technical standards, they may be called requests for comments, proposals, drafts, notes, specifications, or something else
Japanese translations of various web spec.
A list of the top people to follow in web accessibility and web standards.
Simplest MIDI Swift library
🚀 Low-Tech Web-Components Made Lightweight & Future-Proof.
Explainer for the WebSocketStream JavaScript API
Elena is a simple, tiny library for building Progressive Web Components.
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