head to head · open source
Bruno vs ATAC
Bruno has 48,025 GitHub stars, 3,074 forks, 1,831 open issues and last shipped yesterday. ATAC has 3,747 stars, 144 forks, 20 open issues and last shipped 16 days ago. Bruno leads on adoption by 1,182% (48,025 vs 3,747 stars). Bruno is written in JavaScript under MIT; ATAC is written in Rust under MIT. Bruno has attracted 6% as many forks as stars, ATAC 4%. Bruno was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api-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 | ATAC | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 3.7K |
| License | MIT | MIT |
| Written in | JavaScript | Rust |
| Last push | 2026-11-03 | 2026-10-19 |
| Forks | ⑂ 3.1K | ⑂ 144 |
| 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 ATAC if
- You want the ATAC feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and ATAC 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 ATAC
ATAC ⚔📩 === Table Of Contents Description How to install Install with cargo Install with Homebrew Install with Scoop Install from Arch Install from Fedora copr Docker package Binary Compile by yourself Features Current TODO v1.0.0 TODO v2.0.0 Documentation Others Vim key bindings NeoVim integration Themes Technical precisions Tested on Dependencies Binary size Contributors Maintainers Packagers Star history License Description ATAC is A rguably a T erminal A PI C lient. It is based on well known clients such as Postman, Insomnia, or even Bruno, but inside your terminal without any specific graphical environment…
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Frequently asked questions
Is Bruno or ATAC more popular?
Bruno has 48,025 GitHub stars and ATAC has 3,747. Bruno has the larger community by that measure.
Are Bruno and ATAC free?
Both are open source. Bruno is licensed under MIT and ATAC under MIT. Neither carries a licence fee.
What is the difference between Bruno and ATAC?
Bruno is written in JavaScript and ATAC in Rust. 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 ATAC?
Choose Bruno if you want the larger community (48,025 stars) or its MIT licence terms. Choose ATAC if its feature set, stack or MIT licence fits better. Both are self-hostable.