head to head · open source
fastapi vs swagger-jsdoc
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. swagger-jsdoc has 1,790 stars, 229 forks, 47 open issues and last shipped 2 days ago. fastapi leads on adoption by 5,742% (104,566 vs 1,790 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 | ★ 105K | ★ 1.8K |
| License | MIT | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 10K | ⑂ 229 |
| 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 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 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 swagger-jsdoc
swagger jsdoc This library reads your JSDoc annotated source code and generates an OpenAPI (Swagger) specification. Getting started Imagine having API files like these: The library will take the contents of @openapi (or @swagger ) with the following configuration: The resulting openapiSpecification will be a swagger tools compatible (and validated) specification. System requirements Node.js 20.x or higher You are viewing swagger jsdoc v6 which is published in CommonJS module system. Installation Or Supported specifications OpenAPI 3.x Swagger 2 AsyncAPI 2.0 Validation of swagger docs By default swagger jsdoc…
read the full swagger-jsdoc overview →
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Frequently asked questions
Is fastapi or swagger-jsdoc more popular?
fastapi has 104,566 GitHub stars and swagger-jsdoc has 1,790. 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 (104,566 stars) or its MIT licence terms. Choose swagger-jsdoc if its feature set, stack or MIT licence fits better. Both are self-hostable.