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OpenClover

Free#4 of 27 in Test Coverage Tools

OpenClover: A free, open-source coverage tool with strong Java testing and reporting depth. Ranked #4 of 27 in Test Coverage Tools by our editors (7.4/10); pricing: Free plan; best for java teams wanting history and test optimization.

7.4/10Editor score
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At a glance

  • Editor score
    7.4 / 10
  • Pricing
    Free plan
  • Best for
    Java teams wanting history and test optimization
  • Free plan
    Yes
  • Paid from
    None
  • Coverage types
    method, statement, branch, global, per-test
  • Founded
    2017
  • Facts checked
    20 Sep 2026
OpenClover screenshot

  • Where it wins

    • Method, statement, branch, global and per-test coverage metrics
    • Historical reports, data merging and filtering across coverage results
    • Ant, Maven, Gradle, CI, IDE and test-framework integrations

  • Where it doesn't

    • Language support is limited to Java, Groovy and AspectJ
    • The feature set is focused on source-code coverage rather than broad testing
    • Its project structure is an informal, unincorporated group

Our verdict on OpenClover

OpenClover is an open-source code coverage tool for Java, Groovy and AspectJ projects. It instruments source code, measures global and per-test coverage, and reports method, statement and branch metrics. Java teams that need coverage history, detailed reporting, and test optimization will find its scope especially relevant. It also supports coverage gates and can identify tests related to changed application code.

The pricing model is straightforward: OpenClover is free and open source. That makes it suitable for teams that want coverage capabilities without a paid plan structure. Its reporting range includes current and historical HTML reports, along with XML, PDF, JSON and text output. Coverage data can be merged and cross-linked across reports, while filtering can narrow results by files, classes, methods and statements. These options suit teams that need both a broad project view and more targeted analysis.

Its ecosystem fit is a major consideration. Build and delivery integrations include Apache Ant, Apache Maven, Apache Gradle, Jenkins and Bamboo, with additional support for Grails and Griffon. IDE plugins are available for Eclipse and IntelliJ IDEA, while JUnit, TestNG, Spock, Sonar and JIRA appear in the integration set. Teams working primarily in the supported Java ecosystem should pick OpenClover when historical analysis and changed-code test optimization matter. Teams centered on other programming languages or seeking a broader testing platform should choose a more language-diverse alternative.

OpenClover pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on openclover.org

OpenClover fact sheet

Free planYes
Paid fromNone
Coverage typesmethod, statement, branch, global, per-test
Supported languagesJava, Groovy, AspectJ
Report formatsHTML, XML, PDF, JSON, TEXT
Pull-request annotationsNot verified
Self-hosted optionNot verified
Historical trendsYes
Coverage gatesYes
DeploymentDesktop
PlatformsWindows, macOS, Linux
SupportCommunity, Docs
Built forSmall business, Mid-market, Enterprise (editorial estimate)
Integrations14 integrations: Apache Ant, Apache Maven, Apache Gradle, Grails, Griffon, Jenkins …
PricingFree plan
Websiteopenclover.org
Facts checked20 Sep 2026

OpenClover integrations

OpenClover lists 14 integrations on its own site.

  • Apache Ant
  • Apache Maven
  • Apache Gradle
  • Grails
  • Griffon
  • Jenkins
  • Bamboo
  • Eclipse
  • IntelliJ IDEA
  • Sonar
  • JIRA
  • JUnit
  • TestNG
  • Spock

Alternatives to OpenClover

See all OpenClover alternatives →

OpenClover vs the competition

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Featured on iTechGuides

Featured on iTechGuides — OpenClover 7.4/10

OpenClover is listed in our Test Coverage Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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