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

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

Integrate systems. Automate work. Accelerate your digital transformation with a single platform for integration and business process automation.

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

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.