head to head · open source
fastapi vs swagger-jsdoc
fastapi has 102,409 GitHub stars, 9,906 forks, 78 open issues and last shipped 5 days ago. swagger-jsdoc has 1,788 stars, 229 forks, 47 open issues and last shipped 6 days ago. fastapi leads on adoption by 5,628% (102,409 vs 1,788 stars). fastapi is written in Python under MIT; swagger-jsdoc is written in JavaScript under MIT. fastapi has attracted 10% as many forks as stars, swagger-jsdoc 13%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (openapi), 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 | swagger-jsdoc | |
|---|---|---|
| GitHub stars | ★ 102K | ★ 1.8K |
| License | MIT | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-09-14 | 2026-09-13 |
| Forks | ⑂ 9.9K | ⑂ 229 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 102K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick swagger-jsdoc if
- You want the swagger-jsdoc feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and swagger-jsdoc fits your workflow better
About fastapi
FastAPI is an MIT licensed, high performance Python web framework for building APIs with standard Python type hints, aimed at Python developers and teams that need production ready HTTP services with automatic OpenAPI documentation.
read the full fastapi overview →
About swagger-jsdoc
A JavaScript library that reads JSDoc annotated source files and generates an OpenAPI (Swagger) specification from them, built for Node.js API developers who want their API documentation to live next to the route handlers it describes.
read the full swagger-jsdoc overview →
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Frequently asked questions
Is fastapi or swagger-jsdoc more popular?
fastapi has 102,409 GitHub stars and swagger-jsdoc has 1,788. fastapi has the larger community by that measure.
Are fastapi and swagger-jsdoc free?
Both are open source. fastapi is licensed under MIT and swagger-jsdoc under MIT. Neither carries a licence fee.
What is the difference between fastapi and swagger-jsdoc?
fastapi is written in Python and swagger-jsdoc in JavaScript. 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 swagger-jsdoc?
Choose fastapi if you want the larger community (102,409 stars) or its MIT licence terms. Choose swagger-jsdoc if its feature set, stack or MIT licence fits better. Both are self-hostable.