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.

Built by testers, for testers - TestGear is a TMS that truly unites manual and automated testing, adapts to any testing framework, and is designed for flexibility, clarity, and collaboration to improve team performance and release better software, faster.

Professional software tool for HTTP testing and debugging

Generate thousands of test cases, maintain them, and accelerate your releases with the most powerful testing platform.

Fake is a new browser for Mac OS X that makes web automation simple.

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