SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
JaCoCo - JaCoCo is a free Java code coverage library.
cobertura - A code coverage tool for java
OpenCover - OpenCover is a code coverage tool for .NET
Codecov - Develop healthier code using Codecov's leading, dedicated code coverage solution. Try it free
CodeCover - CodeCover is a free glass-box testing tool developed in 2007 at the University of Stuttgart.