18.1
Codecov provides code coverage reporting and insights intended to help teams improve code quality during development.
Free planOpen sourceWebAPIExtension
Codecov provides code coverage reporting and insights intended to help teams improve code quality during development.
Coveralls analyzes software test coverage so teams can identify code that tests do not cover.
SimpleCov measures Ruby code coverage using Ruby’s built-in Coverage library.

dotCover is a paid .NET unit test runner and code coverage tool for C#, F#, and VB.NET.
LCOV captures which parts of a program ran during tests and displays the resulting coverage information.
Atlassian
OpenCppCoverage contributors