Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Free tier available
Free tierFrom $19 per user (one-time, Golden Edition)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Open source core; Karate Labs sells a commercial IDE and enterprise support separately.
The core is free and open source. A small one-time fee unlocks convenience features; an enterprise edition exists separately.
Free tier
The open-source framework is complete and free.
The open-source app and CLI are free and fully functional offline.
Open source
MIT
MIT (core)
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Karate Labs · since 2017
Widely used
Bruno Software · since 2023
Strengths
Limitations
Best for
Teams wanting API testing and mocking in one tool, including non-Java testers.
Engineering teams that want API tests versioned alongside the code they test.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.