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MDN Web Docs is a complex project with lots of moving parts. It's a good idea to get familiar with the different code repositories. This document describes the repositories (repos) you may need when contributing to MDN Web Docs.

Main repositories

  • content
    • : This is where all the English content of the site is maintained, and where you'll make all changes to page content, prose, and in-page code examples.
  • rari
    • : The backend of the MDN Web Docs platform, where you'll go if you want to make changes to page structures, templating, and rendering machinery.
  • fred
    • : The frontend of MDN Web Docs, where you'll find styles, design, and layout functionality.
  • browser-compat-data
    • : Data used to generate the browser compatibility tables found on our reference pages. If you have information about browser compatibility of Web features — or are willing and able to do some research and/or experimentation — you can help update MDN's Browser Compatibility Data
  • translated-content

Infrastructure

  • rumba
    • : A back-end system that powers MDN Plus.
  • workflows
    • : A collection of reusable GitHub Actions for use on MDN Web Docs repositories.

Planning and coordination

These are repository used for project planning, documenting the project itself, and community projects.

  • mdn/mdn
    • : Project proposals and planning issues are maintained here.
  • mdn-community
    • : This repository hosts GitHub Discussions when writers and contributors need to decide how to proceed with writing or technical decisions.

Code examples

These generally contain standalone code examples that are too big or cannot be rendered using the EmbedLiveSample macro.

[!NOTE] If you are updating the code on any given page, check if it's referenced in a corresponding example repo and, if so, make sure you've updated the example repo as well.