head to head · open source
Hoppscotch vs mockttp
Hoppscotch has 80,331 GitHub stars, 6,110 forks, 820 open issues and last shipped 2 days ago. mockttp has 883 stars, 113 forks, 40 open issues and last shipped yesterday. Hoppscotch leads on adoption by 8,998% (80,331 vs 883 stars). Hoppscotch is written in TypeScript under MIT; mockttp is written in TypeScript under Apache-2.0. Hoppscotch has attracted 8% 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
| Hoppscotch | mockttp | |
|---|---|---|
| GitHub stars | ★ 80K | ★ 883 |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-16 | 2026-09-17 |
| Forks | ⑂ 6.1K | ⑂ 113 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hoppscotch if
- You weight community size — 80K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- 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 Hoppscotch
Hoppscotch is an open source API development ecosystem that provides a full featured client for designing, testing, and documenting APIs. It operates as a web based application, desktop app, and CLI tool, supporting offline, on premises, and cloud deployments. Built with TypeScript and licensed under MIT, it serves as a direct open source alternative to proprietary tools like Postman and Insomnia.
read the full Hoppscotch 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 Hoppscotch or mockttp more popular?
Hoppscotch has 80,331 GitHub stars and mockttp has 883. Hoppscotch has the larger community by that measure.
Are Hoppscotch and mockttp free?
Both are open source. Hoppscotch is licensed under MIT and mockttp under Apache-2.0. Neither carries a licence fee.
What is the difference between Hoppscotch and mockttp?
Hoppscotch is written in TypeScript 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, Hoppscotch or mockttp?
Choose Hoppscotch if you want the larger community (80,331 stars) or its MIT licence terms. Choose mockttp if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.