head to head · open source
Bruno vs Voiden
Bruno has 47,992 GitHub stars, 3,068 forks, 1,831 open issues and last shipped yesterday. Voiden has 2,008 stars, 89 forks, 38 open issues and last shipped yesterday. Bruno leads on adoption by 2,290% (47,992 vs 2,008 stars). Bruno is written in JavaScript under MIT; Voiden is written in TypeScript under Apache-2.0. Bruno has attracted 6% as many forks as stars, Voiden 4%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (api-client, automation, http-client), 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 | Voiden | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 2.0K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 3.1K | ⑂ 89 |
| 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 Voiden if
- You want the Voiden feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Voiden 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 Voiden
Voiden : The offline, Git native API workspace. Build, test, document, and collaborate on APIs with plain text .void files. No accounts. No required cloud sync. Just local files, reusable blocks, and Git. Contributors Why Voiden Voiden is an offline API client that helps developers, QA and technical writers build, test, collaborate and document APIs in one place. With a programmable interface (/slash commands) and an agent friendly CLI, Voiden adapts to how engineers already work. Voiden is built with Electron, Typescript and Javascript, and it doesnt require an account to use it. No telemetry, no VC funding…
read the full Voiden overview →
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Frequently asked questions
Is Bruno or Voiden more popular?
Bruno has 47,992 GitHub stars and Voiden has 2,008. Bruno has the larger community by that measure.
Are Bruno and Voiden free?
Both are open source. Bruno is licensed under MIT and Voiden under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and Voiden?
Bruno is written in JavaScript and Voiden 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 Voiden?
Choose Bruno if you want the larger community (47,992 stars) or its MIT licence terms. Choose Voiden if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.