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EclEmma

eclemma.org

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Spec score 7.8 #9 of 27 in Test Coverage Tools

What it is

EclEmma is a Java code coverage tool that brings coverage analysis into the Eclipse workbench. It supports local Java applications, Eclipse and RCP applications, Equinox OSGi, JUnit, TestNG, Eclipse plug-in and RAP tests, SWTBot tests, and Scala applications. Its Coverage view summarizes results by project and lets developers inspect methods; source editors highlight covered and uncovered code. Coverage summaries can use instruction, branch, line, method, type and cyclomatic complexity counters. Users can switch among coverage sessions or merge results from separate test runs. EclEmma imports JaCoCo.exec data and exports reports in HTML, XML or CSV, as well as JaCoCo execution data files. It is based on JaCoCo and can be installed through the Eclipse Marketplace Client, an update site or manually. The free plug-in is listed at free under the Eclipse Public License 2.0. It requires Eclipse 3.8 or higher, Java 1.5 or higher, and Eclipse Java development tools; the project states that it has no operating-system dependency. Its Eclipse integration focuses on individual developers, with JaCoCo integrations suggested for automated builds.

Spec sheet

Purpose
EclEmma is a Java code coverage tool that brings coverage analysis into the Eclipse workbench.Read 7 Oct 2026 · eclemma.org
Intended users
The Eclipse integration focuses on supporting individual developers; the site points users to JaCoCo integrations for automated builds.Read 7 Oct 2026 · eclemma.org
Integrations
EclEmma is based on JaCoCo and is available through the Eclipse Marketplace Client, an update site, or manual installation.Read 7 Oct 2026 · eclemma.org
Support
The project directs users to its documentation and FAQ, then to the JaCoCo and EclEmma Users group; bugs can be reported through the Eclipse issue tracker.Read 7 Oct 2026 · eclemma.org
License
The program is provided under the Eclipse Public License 2.0.Read 7 Oct 2026 · eclemma.org
Founded
2006Read 28 Sep 2026 · eclemma.org
Coverage analysis
The Coverage view summarizes coverage by Java project and allows drill-down to method level, while source editors highlight covered and uncovered code.Read 7 Oct 2026 · eclemma.org
Coverage counters
Coverage summaries can use instruction, branch, line, method, type, and cyclomatic complexity counters.Read 7 Oct 2026 · eclemma.org
Import and export
EclEmma imports JaCoCo .exec execution data and exports coverage reports in HTML, XML, or CSV, as well as JaCoCo execution data files.Read 7 Oct 2026 · eclemma.org
Launch types
Coverage mode supports local Java applications, Eclipse/RCP applications, Equinox OSGi, JUnit, TestNG, JUnit plug-in tests, JUnit RAP tests, SWTBot tests, and Scala applications.Read 7 Oct 2026 · eclemma.org
Release integrity
The download page lists MD5 and SHA-256 checksums for releases.Read 7 Oct 2026 · eclemma.org
Requirements and OS
The installation page requires Eclipse 3.8 or higher and Java 1.5 or higher, says there is no dependency on a particular operating system, and requires Eclipse Java development tools.Read 7 Oct 2026 · eclemma.org
Sessions
Users can switch between multiple coverage sessions and merge sessions from different test runs.Read 7 Oct 2026 · eclemma.org

Plans and prices

Free Free Eclipse plug-in · Java code coverage Read 7 Oct 2026 · eclemma.org

Every EclEmma plan and price →

Strong points and limits

Strong points

  • Coverage can be inspected down to method level.
  • Supports six coverage counters.
  • Can merge sessions from different test runs.
  • Exports HTML, XML and CSV reports.
  • Has no stated operating-system dependency.

Limits

  • Requires Eclipse 3.8 or higher.
  • Requires Java 1.5 or higher.
  • Requires Eclipse Java development tools.
  • Eclipse integration focuses on individual developers.

Who it suits

EclEmma suits individual developers using Eclipse who want coverage views and reports for Java or Scala work. The project points users seeking automated-build integration toward JaCoCo integrations.

Verdict

EclEmma provides coverage analysis within Eclipse, including session management and report export. Its requirements are tied to Eclipse and Java, and its integration focus is individual development rather than automated builds.

Where Specifiction places it

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