Karate
API testing, mocks, performance and UI automation in one Gherkin-based DSL.
What it is
Karate provides a domain-specific language built on Gherkin that handles HTTP calls, JSON and XML assertions, data-driven scenarios, parallel execution, service mocks, performance testing via Gatling, and browser automation — without requiring Java code. It is unusually broad for an open-source project.
Best for
Where it is strong
- One DSL covers functional API tests, mocks and load tests — rare consolidation.
- Powerful JSON matching that removes most assertion boilerplate.
- Non-Java testers can write meaningful tests.
Where it falls short
- The custom DSL is another language to learn and cannot be refactored by an IDE.
- Debugging complex scenarios is harder than in plain code.
- The UI automation feature is far behind dedicated browser tools.
Pricing
Free tier available
Free tierFree tier: The open-source framework is complete and free.
What drives the bill: Open source core; Karate Labs sells a commercial IDE and enterprise support separately.
Check current pricing on Karate Labs’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
Works with
What people who use Karate say
No reviews of Karate yet. If you have used it in anger, yours would be the first.
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