Skyramp uses deterministic, local-first AI to generate functional & performance tests — with native support for your frameworks, infra-aware execution, and seamless pipeline integration.

Diffblue Cover uses next generation autonomous AI to automate unit testing so that Java development teams can build better applications faster.

Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

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

Claude Code superpowers: core skills library

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