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.

Create automatic monitors for detecting and scanning changes on web pages, evaluate content based on conditions you define and trigger actions such as notifications, sounds, emails etc.

Hosted System Status Pages Fully customizable, featuring incident tracking, subscriber notifications, and much more

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.

Easy-to-use website monitoring and uptime monitoring service in one

Selenium automates browsers. That's it! What you do with that power is entirely up to you.