mdn/content

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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Summary Information

Updated 14 minutes ago
Added to GitGenius on September 5th, 2026
Created on September 15th, 2020
Open Issues & Pull Requests: 431 (+1)
GitHub issues: Enabled
Number of forks: 23,231
Total Stargazers: 10,975 (+0)
Total Subscribers: 282 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 9.2 hours
Mean response time: 38.7 days
90th percentile: 46.2 days
Tracked items: 4,802

How this project is maintained

Around half of the issues opened in the past year never receive a reply. 72% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "spam" is answered fastest, typically in under an hour, while "fx release archive" waits about 2 days. 28% of tracked open issues have had no activity in three months. Only 7% of issues opened in the past year have been closed.

Charts & Analytics

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Issue Activity (beta)

Open issues: 246
New in 7 days: 32
Closed in 7 days: 88
Avg open age: 438 days
Stale 30+ days: 124
Stale 90+ days: 113

Recent activity

Opened in 7 days: 29
Closed in 7 days: 70
Comments in 7 days: 7
Events in 7 days: 30

Top labels

  • Content:WebAPI (1,272)
  • Content:CSS (683)
  • help wanted (456)
  • fx release archive (422)
  • spam (346)
  • Content:JS (334)
  • Content:HTML (304)
  • good first issue (264)

Detailed Description

MDN Web Docs is an open-source collaborative documentation project that provides comprehensive reference material and learning resources for web technologies including HTML, CSS, JavaScript, HTTP, and Web APIs.

The project addresses the need for authoritative, freely accessible documentation of web standards and technologies. It maintains detailed reference documentation alongside extensive learning resources designed for both beginners and experienced developers. The content is written in Markdown and can be built locally using Node.js and npm to provide a live preview of the documentation site.

Developers should choose this project if they need reliable, standards-based documentation for web technologies or want to contribute to improving web developer resources. The project suits anyone building educational materials, reference guides, or learning platforms around web development. The documentation covers a broad spectrum of web technologies and includes localized content in multiple languages beyond English, making it valuable for international audiences.

The project maintains active community engagement with established contribution pathways for content, engineering, and translation work. The codebase is actively maintained with clear contribution guidelines and a code of conduct in place. Translation efforts are led by volunteer coordinators across multiple languages, indicating sustained localization activity. The project provides local development setup documentation and communication channels for contributors to coordinate with the core team and community.