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

Checks web UI for browser compatibility (Compliance with Can I Use?)

Cloud-scale performance testing. Effortless load testing and synthetic checks at scale. Cloud-native and open-source. The next evolution of performance testing.

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).

Easy on-device screenshot testing for Android.

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).