Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

SeleniumBase Case Plans is Test Case Management Software that uses Markdown tables for displaying test plans directly in GitHub (and other source code management systems that support Markdown format).

Generate new testing projects hassle-free. Ready for IDE instantly

The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.

k6 Open Source is designed for load testing. Extensible to support other types of testing.

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.