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

Automated robustness testing at the UI level

Robotium is an Android test automation framework that has full support for native and hybrid applications.

Run your Maestro mobile tests on 100+ different iOS and Android device configurations in the cloud

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

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