Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.

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

Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

The Complete Continuous Testing Platform Any test. Any device. App quality without limits.

Design, debug, and test APIs locally or in the cloud

Percy is a visual testing and monitoring tool that focuses on detecting visual changes in web applications