head to head · open source
fastapi vs redoc
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. redoc has 25,998 stars, 2,406 forks, 449 open issues and last shipped 3 days ago. fastapi leads on adoption by 302% (104,566 vs 25,998 stars). fastapi is written in Python under MIT; redoc is written in TypeScript under MIT. fastapi has attracted 10% as many forks as stars, redoc 9%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (openapi, openapi3), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| fastapi | redoc | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 26K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-10-31 |
| Forks | ⑂ 10K | ⑂ 2.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 105K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick redoc if
- You want the redoc feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and redoc fits your workflow better
About fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production Documentation : Source Code : FastAPI is a modern, fast (high performance), web framework for building APIs with Python based on standard Python type hints. The key features are: Fast : Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Fast to code : Increase the speed to develop features by about 200% to 300%. Fewer bugs : Reduce about 40% of human (developer) induced errors. Intuitive : Great editor support. Completion everywhere. Less time…
read the full fastapi overview →
About redoc
Learn what's coming in Redoc 3.x → Generate beautiful API documentation from OpenAPI About Redoc Redoc is an open source tool for generating documentation from OpenAPI (formerly Swagger) definitions. By default Redoc offers a three panel, responsive layout: The left panel contains a search bar and navigation menu. The central panel contains the documentation. The right panel contains request and response examples. Live demo If you want to see how Redoc renders your OpenAPI definition, you can try it out online at A version of the Swagger Petstore API is displayed by default. To test it with your own OpenAPI…
read the full redoc overview →
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Frequently asked questions
Is fastapi or redoc more popular?
fastapi has 104,566 GitHub stars and redoc has 25,998. fastapi has the larger community by that measure.
Are fastapi and redoc free?
Both are open source. fastapi is licensed under MIT and redoc under MIT. Neither carries a licence fee.
What is the difference between fastapi and redoc?
fastapi is written in Python and redoc in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, fastapi or redoc?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose redoc if its feature set, stack or MIT licence fits better. Both are self-hostable.