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.

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

Real API Design-first Development Platform Design. Debug. Test. Document. Mock. Build APIs Faster & Together.

Use Espresso to write concise, beautiful, and reliable Android UI tests.

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.

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