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.

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

Bruno is a Fast and Git-Friendly Opensource API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

Browser and Mobile Automation Test Framework for Node.js

Automate API workflows. Chain HTTP requests. Validate. Zero code.

The Complete Continuous Testing Platform Any test. Any device. App quality without limits.