No. 10 of 28 ·API Documentation Tools

Zudoku

Web · Self-hosted

Freedom report

Two barsScore 6.4

Zudoku is ranked #10 of 28 in API documentation tools on Freedom251. It runs on Self-hosted, Web. There is a free plan.

Zudoku plans and pricing

Free Free Open-source · MIT licensed · Self-hostable github.com · 3 Oct 2026

What it does: Zudoku is an open-source framework for building API documentation and developer portals around OpenAPI.
OpenAPI support: It generates documentation from one or multiple OpenAPI schemas.
Custom content: It supports MDX pages for documenting additional content.
Authentication: It supports authentication through OpenID or OAuth2, and its interactive API playground includes authentication.
Interactive testing: The integrated playground lets users test API calls, including authenticated calls.
Search: The product site describes built-in search powered by tools such as Pagefind and Inkeep.
Static pages: The product site says Zudoku can ship documentation as static pages.
Customization: Users can customize themes and colors, including light and dark modes, and add custom CSS.
Extensibility: Zudoku supports plugins and allows users to create their own.
Deployment: The maker says Zudoku sites can be hosted anywhere and documents deploying a site when it is ready to go live.
Setup requirement: The quickstart lists Node.js 22.12.0+ or 20.19+ as a prerequisite.
Support: The maker directs users to its Discord community for support and tips.
License and cost: The repository says Zudoku is MIT licensed and will always be free and open source.
Intended use: Listed use cases include standalone documentation sites, API references, developer portals, and internal documentation.
Price from: Free

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