Handle large text files and files with broken BOM marks and more with lightweight feel.

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

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).

The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.

Tether is a bug reporting tool for teams. With Tether, teams can report bugs directly on any website using our screenshot and recording tools. Teams can manage feedback from their Tether dashboard or push the feedback anywhere via our integrations.