head to head · open source
Bruno vs Voiden
Bruno has 47,022 GitHub stars, 2,888 forks, 1,831 open issues and last shipped yesterday. Voiden has 1,755 stars, 80 forks, 38 open issues and last shipped 7 days ago. Bruno leads on adoption by 2,579% (47,022 vs 1,755 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 5%. 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 | ★ 47K | ★ 1.8K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-11 |
| Forks | ⑂ 2.9K | ⑂ 80 |
| 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 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 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 Voiden
Voiden is an offline, Git native API workspace built with Electron, TypeScript, and JavaScript. It lets developers, QA engineers, and technical writers design, test, document, and collaborate on APIs using plain text .void files. The project lives in the API development and testing ecosystem, and its topics describe it as an alternative to Bruno and Insomnia. It supports REST, GraphQL, gRPC, and WebSockets through plugins, and it imports collections from Postman, Insomnia, and Swagger or OpenAPI.
read the full Voiden overview →
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Frequently asked questions
Is Bruno or Voiden more popular?
Bruno has 47,022 GitHub stars and Voiden has 1,755. 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 (47,022 stars) or its MIT licence terms. Choose Voiden if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.