head to head · open source
Bruno vs kubb
Bruno has 47,027 GitHub stars, 2,890 forks, 1,831 open issues and last shipped 2 days ago. kubb has 1,802 stars, 147 forks, 6 open issues and last shipped yesterday. Bruno leads on adoption by 2,510% (47,027 vs 1,802 stars). Bruno is written in JavaScript under MIT; kubb is written in TypeScript under MIT. Bruno has attracted 6% as many forks as stars, kubb 8%. kubb 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
| Bruno | kubb | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 1.8K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 2.9K | ⑂ 147 |
| 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 kubb if
- You want the kubb feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and kubb 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 kubb
Kubb is an MIT licensed TypeScript meta framework for code generation that turns an OpenAPI schema into type safe TypeScript types, HTTP clients, data fetching hooks, validators, and mocks for front end and full stack developers.
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Frequently asked questions
Is Bruno or kubb more popular?
Bruno has 47,027 GitHub stars and kubb has 1,802. Bruno has the larger community by that measure.
Are Bruno and kubb free?
Both are open source. Bruno is licensed under MIT and kubb under MIT. Neither carries a licence fee.
What is the difference between Bruno and kubb?
Bruno is written in JavaScript and kubb 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, Bruno or kubb?
Choose Bruno if you want the larger community (47,027 stars) or its MIT licence terms. Choose kubb if its feature set, stack or MIT licence fits better. Both are self-hostable.