Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

Playwright enables reliable end-to-end testing for modern web apps.

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

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.

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

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