Docusaurus vs ReadMe

Docusaurus is an open-source static site generator for documentation, created and maintained by Meta's open-source team and released under the MIT license. You write pages in Markdown or MDX, which lets you embed React components inside docs, and Docusaurus builds a fast static website with navigation, sidebars, a blog and search that you can host on GitHub Pages, Netlify, Vercel or any static host.

Key features are document versioning, so each product release keeps its own docs, built-in internationalisation for translated sites, a plugin system, swizzling to override theme components, and Algolia DocSearch integration, which is free for qualifying open-source projects. Version 3 moved to MDX 3 and React 18. There is no paid tier: the real cost is the developer time needed to set up, design, host and maintain the site. It powers documentation for projects such as React Native, Jest and Redux.

Docusaurus fits engineering teams and open-source projects that want docs-as-code in Git with full control over design. It is weaker for non-technical writers, who must edit Markdown files and open pull requests, and it lacks hosted analytics, AI answers and a visual editor. GitBook and Mintlify are hosted alternatives with visual editing and AI features, MkDocs with the Material theme is the Python-world equivalent, and Starlight from Astro and Nextra are newer static options.

ReadMe is a developer hub platform founded in 2014 in San Francisco and used by many API-first companies to publish their documentation. It combines guides, an interactive API reference, changelogs, recipes and a discussion forum in one hosted site that product and developer relations teams can edit without a docs engineering team.

The API reference is generated from OpenAPI or Swagger definitions and includes a try-it console that makes real calls, with code samples in many languages. Logged-in developers see their own API keys pre-filled, which shortens time to first call. ReadMe's distinctive feature is API metrics: with a lightweight SDK or integration, it shows which customers call which endpoints, how often and with which errors, and links those logs to the docs and support. Owlbot, the AI assistant, answers developer questions from the documentation. Plans run from the free Starter tier to Pro at $250 a month billed annually, which adds unlimited versions and more admins, and Enterprise adds multi-project governance and SSO.

ReadMe fits companies whose API is a core product and who want docs, onboarding and usage analytics in one place. Costs climb quickly from Pro to Enterprise, and teams that want docs-as-code in git may prefer Mintlify, which offers a modern design and strong git workflows. Redocly and Stoplight are strong for API design and governance, while Docusaurus and Scalar are free options for smaller projects.