Zudoku

Zudoku is a free, open-source tool that generates powerful, customizable API documentation sites from OpenAPI v2/v3 schemas. It supports static site generation, live endpoint testing, built-in authentication, instant search, and is extensible via MDX, themes, components, and plugins. Aimed at developers, teams, and organizations managing API docs, Zudoku helps automate documentation workflows and deliver a best-in-class developer experience.