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Open-source QA tools written in Java: 25 listed

25 listed tools have Java as the repository's primary language, as reported by the GitHub or GitLab API. The primary language is the language with the most code in the repository. It is not always the language tests are written in: a tool implemented in one language may drive tests written in another.

The table is sorted by GitHub stars, descending, on the fetch date. Filter by category, license or status, or select a column heading to sort. All languages.

Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.

Tools with Java as the primary language. Sorted by GitHub stars, descending. Select a column heading to change the sort.
Selenium34,51112026-09-091selenium-4.49.02026-09-221Apache-2.0Javaactive
ZAP15,80412025-12-151v2.17.02026-09-171Apache-2.0Javaactive
Mockito15,45712026-03-111v5.23.02026-09-091MITJavaactive
SonarQube11,01012026-09-02126.9.0.1293882026-09-211LGPL-3.0Javaactive
Checkstyle9,57112026-08-301checkstyle-14.1.02026-09-221LGPL-2.1Javaactive
Apache JMeter9,54212024-01-091rel/v5.6.32026-09-121Apache-2.0Javaactive
Karate8,96512026-08-141v2.1.22026-09-191MITJavaactive
Testcontainers for Java8,74112026-04-2012.0.52026-09-091MITJavaactive
WireMock7,37812025-11-1413.13.22026-09-221Apache-2.0Javaactive
REST Assured7,14112026-07-101rest-assured-6.0.12026-07-221Apache-2.0Javaactive
JUnit7,05612026-08-071r6.1.32026-09-221EPL-2.0Javaactive
MockServer4,97412026-09-151mockserver-8.0.02026-09-221Apache-2.0Javaactive
JaCoCo4,60312026-06-051v0.8.152026-09-151EPL-2.0Javaactive
SpotBugs3,94612026-08-2014.10.42026-09-191LGPL-2.1Javaactive
Spock3,63012025-12-111spock-2.42026-07-281Apache-2.0Javaactive
AssertJ2,84712026-01-241assertj-build-3.27.72026-09-221Apache-2.0Javaactive
Cucumber JVM2,83512026-09-221v7.34.92026-09-221MITJavaactive
TestNG2,05912026-01-2217.12.02026-09-221Apache-2.0Javaactive
Microcks2,04612026-08-0511.15.02026-09-221Apache-2.0Javaactive
Selenide1,91112026-09-191v7.18.22026-09-211MITJavaactive
Datafaker1,79712026-06-2412.7.02026-09-211Apache-2.0Javaactive
AndroidX Test1,22412024-06-261axt_06_24_20242026-09-221Apache-2.0Javaactive
Spring Cloud Contract73012026-06-111v5.0.32026-07-061Apache-2.0Javaarchived
OWASP dependency-check5412025-02-171v12.1.02025-02-171Apache-2.0Javaarchived
JBehave4112023-09-251jbehave-5.2.02026-03-051BSD-3-ClauseJavaslow

1 Fetched from the GitHub or GitLab API on . Hover a value for its own date.