head to head · open source
Bruno vs mockttp
Bruno has 47,022 GitHub stars, 2,888 forks, 1,831 open issues and last shipped yesterday. mockttp has 883 stars, 113 forks, 40 open issues and last shipped yesterday. Bruno leads on adoption by 5,225% (47,022 vs 883 stars). Bruno is written in JavaScript under MIT; mockttp is written in TypeScript under Apache-2.0. Bruno has attracted 6% as many forks as stars, mockttp 13%. mockttp was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | mockttp | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 883 |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.9K | ⑂ 113 |
| 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 mockttp if
- You want the mockttp 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 mockttp 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 mockttp
Mockttp is an HTTP mock server and proxy library written in TypeScript and released under the Apache 2.0 license. It lives in the JavaScript and Node.js ecosystem, installed as a development dependency from npm, and it is part of HTTP Toolkit, where it powers all of the HTTP internals of that product. The same code that drives the interactive HTTP Toolkit application can therefore be used as a headless script, which makes the library both a testing tool and a scriptable rewriting proxy for capturing, inspecting and modifying HTTP traffic.
read the full mockttp overview →
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Frequently asked questions
Is Bruno or mockttp more popular?
Bruno has 47,022 GitHub stars and mockttp has 883. Bruno has the larger community by that measure.
Are Bruno and mockttp free?
Both are open source. Bruno is licensed under MIT and mockttp under Apache-2.0. Neither carries a licence fee.
What is the difference between Bruno and mockttp?
Bruno is written in JavaScript and mockttp 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 mockttp?
Choose Bruno if you want the larger community (47,022 stars) or its MIT licence terms. Choose mockttp if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.