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.

Test, scrape, generate, and automate without the pain and expense of hosting your own headless browsers.

ReadyAPI is a low-code API testing platform for development teams that care about creating test automation across any workflow.

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

Comprehensive and user-friendly cloud platform for Load Testing, Speed Testing and Website & API Optimization and Monitoring

HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.