JaCoCo

API

Visit site Alternatives

Freedom report

Two barsScore 6.2

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

JaCoCo is ranked #10 of 26 in test coverage tools on Freedom251. It runs on API. There is a free plan.

JaCoCo plans and pricing

All plans

Free Free Free Java code coverage library · EPL 2.0 license jacoco.org · 4 Oct 2026

Compared on test coverage tools

Free plan: Yes
Coverage types: instruction, branch, complexity, line, method, class
Supported languages: Java, Kotlin, Groovy, Scala
Report formats: HTML, XML, CSV
Coverage gates: Yes

Best JaCoCo alternatives

See all 20

Two bars OpenClover Free tier No. 1Free6.6 Two bars SimpleCov Free tier No. 2Free6.6 Two bars Coverage.py Free tier No. 3Free6.5 One bar Coveralls Free tier No. 4$10/mo6.5 Two bars Coverlet Free tier No. 5Free6.5 Two bars gofmt Free tier No. 6Free6.5

The record

Purpose: JaCoCo is a code coverage library for Java and Java VM based environments.
Coverage metrics: It analyzes instruction, branch, line, method, type, and cyclomatic complexity coverage.
Instrumentation: Its Java agent instruments class files on the fly as they are loaded, independently of the application framework.
Reports: It can create coverage reports in HTML, XML, and CSV formats.
Build tools: JaCoCo provides Ant tasks and a Maven plug-in for collecting execution data and creating reports.
Integrations: The integration matrix lists tools including Gradle, Eclipse, IntelliJ IDEA, Jenkins, SonarQube, and TeamCity.
Java support: JaCoCo officially supports Java class files from version 1.0 to 27 and experimentally supports version 28; its runtime and tools require Java 1.5 or higher.
Report requirement: Line coverage and source highlighting require class files compiled with debug information containing line numbers.
Security: The agent’s TCP connections and JMX interface have no authentication, and the documentation warns that exposing them to untrusted sources may reveal application information or permit denial-of-service attacks.
License: The library and its included documentation are made available under the Eclipse Public License 2.0, except where otherwise indicated.
Support: The project directs users to its public JaCoCo and EclEmma user group for feedback and questions.
Release schedule: The project says it is maintained by volunteers in their free time and does not commit to particular release dates.
Price from: Free

Where it ranks on Freedom251

Best Test Coverage Tools in 2026#10 of 26

Is JaCoCo yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote JaCoCo

Sources

jacoco.org/jacoco/· checked 4 Oct 2026
jacoco.org/jacoco/trunk/doc/mission.html· checked 4 Oct 2026
jacoco.org/jacoco/trunk/doc/agent.html· checked 4 Oct 2026
jacoco.org/jacoco/trunk/doc/integrations.html· checked 4 Oct 2026
jacoco.org/jacoco/trunk/doc/faq.html· checked 4 Oct 2026
jacoco.org/jacoco/trunk/doc/license.html· checked 4 Oct 2026