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.

Professional software tool for HTTP testing and debugging

Selenium automates browsers. That's it! What you do with that power is entirely up to you.

Swagger UI allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources without having any of the implementation logic in place

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

TestQuality is a cloud-based test management platform that integrates with issue and requirements trackers, automation frameworks and (CI/CD) systems. It assists your QA teams in managing and tracking software testing.