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.

Unifying API testing, API Performance testing, API Mocks and UI testing.

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

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

Free & OpenSource REST API Testing Tool for all levels in a Test Pyramid

Playwright enables reliable end-to-end testing for modern web apps.