SoapUI
Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).
Similar Tools
Agentic QE Fleet is an open-source AI-powered quality engineering platform designed for use with Claude Code, featuring specialized agents and skills that surface quality-related information for a product at any stage of the SDLC.
Loader.io is a free load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections.
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.
Checks web UI for browser compatibility (Compliance with Can I Use?)
Jest is a delightful JavaScript Testing Framework with a focus on simplicity.
k6 Open Source is designed for load testing. Extensible to support other types of testing.
Lynqa executes your existing tests as written, no scripts or rewrites. Review step-by-step evidence. Start free.
There are countless ways to show up and contribute. Which one will you try today?
Take this 7-question assessment to see where your QA team stands and get a plan for what to automate next.
Team of 5 or fewer? TestRail now starts at $22/user. Test case management, defect integrations, reporting, and more.