head to head · open source
Bruno vs fusio
Bruno has 47,065 GitHub stars, 2,895 forks, 1,831 open issues and last shipped 2 days ago. fusio has 2,116 stars, 241 forks, 169 open issues and last shipped 14 days ago. Bruno leads on adoption by 2,124% (47,065 vs 2,116 stars). Bruno is written in JavaScript under MIT; fusio is written in PHP under Apache-2.0. Bruno has attracted 6% as many forks as stars, fusio 11%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (javascript, 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
| Bruno | fusio | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 2.1K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | PHP |
| Last push | 2026-09-18 | 2026-09-06 |
| Forks | ⑂ 2.9K | ⑂ 241 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 47K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick fusio if
- You want the fusio feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches PHP
- You evaluated both and fusio fits your workflow better
About Bruno
Bruno is a lightweight, open source API client and IDE for exploring and testing APIs, built for developers and teams who want their request collections stored as plain text in a folder on their own filesystem rather than in a vendor's cloud.
read the full Bruno overview →
About fusio
Fusio is a self hosted, open source API management platform and gateway written in PHP that turns internal business logic, legacy databases, and microservices into documented API products for third party developers and autonomous AI agents.
read the full fusio overview →
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Frequently asked questions
Is Bruno or fusio more popular?
Bruno has 47,065 GitHub stars and fusio has 2,116. Bruno has the larger community by that measure.
Are Bruno and fusio free?
Both are open source. Bruno is licensed under MIT and fusio under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and fusio?
Bruno is written in JavaScript and fusio in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Bruno or fusio?
Choose Bruno if you want the larger community (47,065 stars) or its MIT licence terms. Choose fusio if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.