Apps similar to EclEmma include cobertura, which is free and open source. Other options are Atlassian Clover, CodeCover, OpenClover and Coverlipse. In total there are five apps like EclEmma for Mac, Windows, Linux and self-hosting.
Cobertura is a free Java tool that calculates the percentage of code accessed by tests. It can be used to identify which parts of your Java program are lacking test coverage. It is based on jcoverage.
Atlassian Clover provides Java and Groovy code coverage for software testing. Spend more time writing code that does stuff than code that tests stuff.
CodeCover is a free glass-box testing tool developed in 2007 at the University of Stuttgart. CodeCover measures statement, branch, loop, term coverage (subsumes MC/DC), question mark operator coverage, and synchronized coverage.
Australia
SourceForge presents the Coverlipse project. Coverlipse is an open source application. SourceForge provides the world's largest selection of Open Source Software. An eclipse plugin for code coverage visualization of JUnit Tests. Especially useful for test-first development.
