Coverlet coverage is an open-source tool designed to help .NET developers measure how thoroughly their tests exercise application code. By tracking line, branch, and method coverage, it identifies untested areas and highlights gaps in test suites, enabling teams to strengthen software reliability. Coverlet works seamlessly with popular .NET testing frameworks such as xUnit, NUnit, and MSTest, and it integrates easily into modern CI/CD pipelines.

Beyond simple metrics, Coverlet coverage provides actionable insights that help developers prioritize critical code for testing, maintain high-quality standards, and ensure that automated tests deliver meaningful results. Using Coverlet coverage effectively allows teams to build more maintainable, reliable, and robust .NET applications while continuously monitoring test effectiveness.