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
Oct 20, 2025 - 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
Nu Html Checker – Helps you catch problems in your HTML/CSS/SVG
Streams Standard
💡 dokieli is a clientside editor for decentralised article publishing, annotations and social interactions
A tool for creating technical documents and web standards
⬆ Dead simple, dependency-less, spec-compliant server-sent events implementation written in TypeScript
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
AURA (Agent-Usable Resource Assertion) is an open protocol designed to make the web machine-readable. It replaces fragile screen scraping with a declarative aura.json manifest, allowing websites to expose their capabilities as a secure, efficient, and standardized API for AI agents.
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