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Karate

An open-source test automation framework for APIs, UI, mocks and performance in one syntax.

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About Karate

Karate is an open-source framework for writing automated API tests in a readable, Gherkin-like syntax without needing to write Java step definitions. A single feature file can call endpoints, match whole JSON or XML responses with one keyword, chain requests, reuse other features and run data-driven scenarios, and the same engine also drives UI tests, mocks and stubs, and performance tests through Gatling. Tests run in parallel through JUnit, a command-line tool or Maven and Gradle builds, with HTML reports, which makes it a common choice in CI pipelines. The core is free under the MIT licence, and Karate Labs sells enterprise products, including an AI test agent and IDE plugins, that run on your own machines. It runs anywhere Java does: Windows, Mac and Linux. The trade-offs are that it is a framework rather than a point-and-click client, the Java toolchain can feel heavy, and some newer features are only in paid editions. It suits QA engineers and developers automating API tests.

Best for: QA engineers and developers who want readable, automated API tests in CI.

Pros and cons

What works

  • Readable tests without step definitions
  • API, UI, mocks and performance in one framework
  • Parallel test runs
  • Free, MIT-licensed core

Why people leave

  • Not an interactive request client
  • Java toolchain can feel heavy
  • Some tooling only in paid editions

Top Karate alternatives

See all 5
  1. 1SoapUI logo
    SoapUI

    A graphical open-source tool for functional REST and SOAP tests.

    66.5
  2. 2Hurl logo
    Hurl

    Lighter plain-text HTTP tests with no Java toolchain.

    62.6
  3. 3Katalon Studio logo
    Katalon Studio

    Codeless and scripted tests across API, web and mobile.

    59.6
  4. 4Bruno logo
    Bruno

    Open-source client with tests and a CLI runner for CI.

    57.5
  5. 5Postman logo
    Postman

    Collections and JavaScript tests with a graphical runner.

    48.9

Why people left Karate

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Karate: common questions

Is Karate free?

Yes. Karate is free, open-source software.

Is Karate open source?

Yes. The source code is on GitHub at karatelabs/karate.

What platforms does Karate run on?

Karate is available for Windows, macOS and Linux.

What are the best alternatives to Karate?

The highest-ranked Karate alternatives right now are SoapUI, Hurl and Katalon Studio. See the full ranked list for pricing, platforms and verified facts.

See all 5 Karate alternatives