head to head · open source
Bruno vs ogen
Bruno has 47,992 GitHub stars, 3,068 forks, 1,831 open issues and last shipped yesterday. ogen has 2,151 stars, 196 forks, 133 open issues and last shipped 8 days ago. Bruno leads on adoption by 2,131% (47,992 vs 2,151 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 | ★ 48K | ★ 2.2K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-11-02 | 2026-10-26 |
| Forks | ⑂ 3.1K | ⑂ 196 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Bruno if
- You weight community size — 48K 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 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 →
About ogen
ogen OpenAPI v3 Code Generator for Go. Getting started Sample project Security policy Telegram group @ogen dev Install Usage or using container: Features No reflection or interface{} The json encoding is code generated, optimized and uses go faster/jx for speed and overcoming encoding/json limitations Validation is code generated according to spec Code generated static radix router No more boilerplate Structures are generated from OpenAPI v3 specification Arguments, headers, url queries are parsed according to specification into structures String formats like uuid , date , date time , uri are represented by go…
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Frequently asked questions
Is Bruno or ogen more popular?
Bruno has 47,992 GitHub stars and ogen has 2,151. 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 (47,992 stars) or its MIT licence terms. Choose ogen if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.