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SoapUI Open Source vs Karate: catalog facts
SoapUI Open Source	Karate
Free The open source edition is free; the commercial ReadyAPI product is paid.	Free Free and open source.
Windows, macOS, Linux	Command line
Strong SOAP and WSDL support Functional test suites with custom scripting	API testing, mocks, performance and UI automation in one tool Readable test scenarios
GraphQL, gRPC and CI integrations are reserved for paid ReadyAPI Website heavily promotes the commercial product	Requires a Java environment Tests are written as scripts rather than built in a GUI
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.