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.

Simulate APIs, integrations, and environments at enterprise scale.

Browser and Mobile Automation Test Framework for Node.js

Real API Design-first Development Platform Design. Debug. Test. Document. Mock. Build APIs Faster & Together.

Voiden is a developer-first API client with local storage, Git-integrated, all based on markdown + offline support.

Easy on-device screenshot testing for Android.