Robot Framework is a generic open source automation framework. It can be used for test automation and robotic process automation (RPA).

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

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

Free and open source. Solve accessibility issues before they reach your customers.

The worlds most widely used web app scanner.

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