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

Selenium tests are often unstable and difficult to maintain. Parasoft Selenic fixes common Selenium problems within your existing projects and with no vendor lock.

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

NUnit is a unit-testing framework for all .Net languages.

Test orchestration and execution framework for Kubernetes

SelectorsHub is the Next Gen XPath Plugin & Selectors tool. It supports all kinds of XPath, locators, shadow dom, iframe, svg, dynamic elements, multi selectors generation and xpath error handling. It is a Free community product.