Fully integrated API and web service testing capabilities that automate end-to-end functional API testing.

Professional software tool for HTTP testing and debugging

Burp or Burp Suite is a set of tools used for penetration testing of web applications. It is developed by a company named Portswigger who make freely available a Web Security Academy which has a range of lessons on penetration testing.

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

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

Simulate APIs, integrations, and environments at enterprise scale.