dotCover - JetBrains dotCover is a .NET unit test runner and code coverage tool that integrates with Visual Studio.
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.
NCrunch - NCrunch is an automated concurrent testing tool for Visual Studio .NET.
JaCoCo - JaCoCo is a free Java code coverage library.
cobertura - A code coverage tool for java
Atlassian Clover - Atlassian Clover is a Java and Groovy code coverage tool.