head to head · open source
Bruno vs ogen
Bruno has 47,027 GitHub stars, 2,890 forks, 1,831 open issues and last shipped 2 days ago. ogen has 2,139 stars, 185 forks, 133 open issues and last shipped 5 days ago. Bruno leads on adoption by 2,099% (47,027 vs 2,139 stars). Bruno is written in JavaScript under MIT; ogen is written in Go under Apache-2.0. Bruno has attracted 6% as many forks as stars, ogen 9%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (openapi, openapi3, rest-api), 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 | ogen | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 2.1K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-09-14 |
| Forks | ⑂ 2.9K | ⑂ 185 |
| 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 ogen if
- You want the ogen feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and ogen 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 ogen
ogen is an Apache 2.0 licensed OpenAPI v3 code generator for Go that converts an OpenAPI v3 specification into statically typed Go server interfaces and client code, aimed at Go teams who would rather generate their HTTP API layer from a spec than hand write it.
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Frequently asked questions
Is Bruno or ogen more popular?
Bruno has 47,027 GitHub stars and ogen has 2,139. Bruno has the larger community by that measure.
Are Bruno and ogen free?
Both are open source. Bruno is licensed under MIT and ogen under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and ogen?
Bruno is written in JavaScript and ogen in Go. 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 ogen?
Choose Bruno if you want the larger community (47,027 stars) or its MIT licence terms. Choose ogen if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.