MDN Web Docs resource
The platform code behind MDN Web Docs observed · 2026-09-03
Health v2 · maintenance only
82/100
- Activity 100
- Release rhythm 48
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 5.5
- age_days: 2660
- days_rel: 350
- days_push: 0
- n_releases_24m: 51
Adoption not part of the score
1299 stars · 553 forks observed · 2026-09-03
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
MDN Web Docs is the open-source, community-maintained documentation project for web technologies, containing over 14,000 pages of reference and learning content on HTML, CSS, JavaScript, HTTP, and Web APIs. The mdn/content repository holds the Markdown source of the documentation, rendered by the yari platform at developer.mozilla.org.
Use cases
- look up HTML element and attribute references
- learn web development from beginner tutorials
- check browser compatibility data for web APIs
- find CSS and JavaScript code examples
- contribute to or translate web documentation
- run MDN docs locally for offline reading
When to choose
- you need authoritative reference material for web platform technologies
- you are a beginner looking for structured web development tutorials
- you want to contribute to or localize web documentation
- you need browser compatibility information for features
When to avoid
- you need documentation for non-web technologies like Python or Rust
- you want a runnable software tool rather than documentation content
- you need guaranteed up-to-the-minute coverage of brand-new experimental APIs
Facets
learning-resource · maturity stable
documentation developer-tools web-development documentation frontend tutorials cross-platform mdn web-standards reference html css javascript web-apis http open-source-documentation localization web-server nodejs
10 sources
- readme: https://github.com/mdn/yari · fetched 2026-09-03 · 1a30428bc6e2
- homepage: https://developer.mozilla.org · fetched 2026-08-29 · caf521516d21
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML · fetched 2026-08-29 · 66bf4a25f44a
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements · fetched 2026-08-29 · a6c21ef2f053
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes · fetched 2026-08-29 · e2025dfddb5b
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes · fetched 2026-08-29 · dc19bdcf5efd
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Reference · fetched 2026-08-29 · e154bd54ce2b
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images · fetched 2026-08-29 · 8807d18c08e4
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet · fetched 2026-08-29 · 797cb95cf18e
- site_page: https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats · fetched 2026-08-29 · f9a25082e203
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| mdn/yari | main | 82 |
| mdn/content | docs | 77 |
| mdn/learning-area | examples | 77 |
| mdn/browser-compat-data | sdk | 95 |
| mdn/webextensions-examples | examples | 75 |
| mdn/dom-examples | examples | 74 |
| mdn/translated-content | docs | 77 |
| mdn/kuma | backend | 10 |
| mdn/django-locallibrary-tutorial | examples | 76 |
| mdn/webaudio-examples | examples | 68 |
| mdn/web-speech-api | examples | 10 |
| mdn/mdn | docs | 73 |
| mdn/express-locallibrary-tutorial | examples | 73 |
| mdn/js-examples | examples | 56 |
| mdn/webgl-examples | examples | 10 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem