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.

Integrate systems. Automate work. Accelerate your digital transformation with a single platform for integration and business process automation.

Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the DevTools Protocol.

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

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.

Streamline your API testing, integration testing and test data management.