head to head · open source
fastapi vs Bruno
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. Bruno has 47,992 stars, 3,068 forks, 1,831 open issues and last shipped yesterday. fastapi leads on adoption by 118% (104,566 vs 47,992 stars). fastapi is written in Python under MIT; Bruno is written in JavaScript under MIT. fastapi has attracted 10% as many forks as stars, Bruno 6%. Bruno 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 | Bruno | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 48K |
| License | MIT | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 10K | ⑂ 3.1K |
| 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 Bruno if
- You want the Bruno feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and Bruno 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 Bruno
Bruno Opensource IDE for exploring and testing APIs. English Українська Русский Türkçe Deutsch Français Português (BR) 한국어 বাংলা Español Italiano Română Polski 简体中文 正體中文 العربية 日本語 ქართული Nederlands فارسی Bruno is a new and innovative API client, aimed at revolutionizing the status quo represented by Postman and similar tools out there. Bruno stores your collections directly in a folder on your filesystem. We use a plain text markup language, Bru, to save information about API requests. You can use Git or any version control of your choice to collaborate over your API collections. Bruno is offline only. There…
read the full Bruno overview →
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Frequently asked questions
Is fastapi or Bruno more popular?
fastapi has 104,566 GitHub stars and Bruno has 47,992. fastapi has the larger community by that measure.
Are fastapi and Bruno free?
Both are open source. fastapi is licensed under MIT and Bruno under MIT. Neither carries a licence fee.
What is the difference between fastapi and Bruno?
fastapi is written in Python and Bruno 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 Bruno?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose Bruno if its feature set, stack or MIT licence fits better. Both are self-hostable.