Read The Docs

Documentation hosting platform that builds and deploys docs automatically from your Git repository. Treats documentation as code, using the same workflow as your software: push changes, and builds run on every commit so docs stay in sync with releases.

Read the Docs hosts over 100,000 open source projects, including Flask, Jupyter, and Godot Engine. Stands out among doc hosts with native support for Sphinx, MkDocs, and Jupyter Book, plus pull-request previews so you can review doc changes before merging.

Key capabilities:

• Automatic builds from Git on every push, with config via .readthedocs.yaml
• Versioned documentation aligned with releases, branches, or tags
• Pull request previews for reviewing doc changes before merge
• Support for Sphinx, MkDocs, and Jupyter Book, plus flexible build environments
• Integrated search and REST API for embedding docs in other tools
• Custom domains, subprojects, and localization for multi-language docs

Developers use Read the Docs for API references, user guides, and project wikis. Fits teams that already write docs in reStructuredText or Markdown and want hosting without managing CI or servers.