React Testing Library is described as 'The React Testing Library is a very lightweight solution for testing React components. It provides light utility functions on top of react-dom and react-dom/test-utils, in a way that encourages better testing practices' and is an app in the development category. There are four alternatives to React Testing Library for a variety of platforms, including Mac, Windows, Linux, Web-based and Self-Hosted apps. The best React Testing Library alternative is Cypress, which is both free and Open Source. Other great apps like React Testing Library are Jest, Enzyme and Jikken.