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.

• UpdatedFeb 20, 2026
• Markdown

Example Firefox add-ons created using the WebExtensions API

• UpdatedFeb 16, 2026
• JavaScript

Code examples that accompany various MDN DOM and Web API documentation pages

• UpdatedJan 29, 2026
• JavaScript

7 community-maintained translations of MDN Web Docs in ES, FR, JA, KO, PT-BR, RU, and ZH, to learn and contribute in your native language.

• UpdatedFeb 20, 2026
• Markdown

The project that powers MDN.

• UpdatedAug 26, 2022
• Python

Strict TypeScript and Flow types for style based on MDN data

• UpdatedJan 21, 2026
• TypeScript

Planning and proposals for MDN Web Docs content

• UpdatedFeb 18, 2026

The platform code behind MDN Web Docs

• UpdatedFeb 17, 2026
• TypeScript

Code examples that accompany the MDN JavaScript/ECMAScript documentation

• UpdatedNov 18, 2025
• JavaScript

📚JavaScript 前端知识图谱 A guidebook for the convenience of the front-end developers

• UpdatedAug 28, 2025
• TypeScript

(Deprecated) Home of the MDN live code editor interactive examples

• UpdatedOct 17, 2025
• HTML

A curated list of CSS Grid Resources

• UpdatedJan 27, 2024

⚡️ This repo serves as a resource for developers to leverage on their Journey into Front End Development.

• UpdatedNov 14, 2023

A generic Mixture Density Networks (MDN) implementation for distribution and uncertainty estimation by using Keras (TensorFlow)

• UpdatedJun 30, 2017
• Jupyter Notebook

MDN polyfills - from, forEach, filter, find, findIndex, assign, includes, create, entries, of, repeat, startsWith, endsWith, toggleAttribute, bind, MouseEvent, CustomEvent, padEnd, padStart

• UpdatedDec 7, 2022
• JavaScript

An MDN Layer for Keras using TensorFlow's distributions module

• UpdatedFeb 18, 2026
• Jupyter Notebook

A place to provide feedback and suggestions for MDN Web Docs

• UpdatedFeb 18, 2026

Archived: MDN Web Docs issues are tracked in the content repository.

• UpdatedJan 24, 2024

Sample todo app built with the Vue framework

• UpdatedFeb 20, 2026
• Vue

The base Sass for Mozilla Developer based projects and products

• UpdatedFeb 11, 2022
• SCSS