TestMu AI (Formerly LambdaTest) is a fully autonomous agentic quality engineering platform that empowers teams to test intelligently, smarter, and ship faster.

ReadyAPI is a low-code API testing platform for development teams that care about creating test automation across any workflow.

SelectorsHub is the Next Gen XPath Plugin & Selectors tool. It supports all kinds of XPath, locators, shadow dom, iframe, svg, dynamic elements, multi selectors generation and xpath error handling. It is a Free community product.

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).

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.

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.