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

Automation Test Reporting. OSS, Language & Framework agnostic

Simple animated GIF screen recorder with an easy to use interface.

Unifying API testing, API Performance testing, API Mocks and UI testing.

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

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