Open source openapi-documentation projects
Every project in the registry tagged openapi-documentation, ranked by real GitHub adoption.
Simple, Fast, Code first and Compile time generated OpenAPI documentation for Rust
Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.
Framework for building high quality, interactive API documentation.
Related tags
Frequently asked questions
How many open source openapi-documentation projects are there?
This registry tracks 3 projects tagged openapi-documentation, with 6,052 GitHub stars between them. The most-adopted is utoipa at 4,090 stars.
Are these openapi-documentation projects free to use?
Yes — 3 of the 3 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which openapi-documentation project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these openapi-documentation projects still maintained?
3 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.