Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites
JSLint, The JavaScript Code Quality and Coverage Tool
A code coverage tool for Rust projects
Ruby production code coverage collection and reporting (line of code usage)
Generate code coverage reports with gcc/gcov
Nice code coverage reporting without hassle
Node command tool to generate TypeScript coverage report
octocov is a toolkit for collecting code metrics (code coverage, code to test ratio, test execution time and your own custom metrics).