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Karate vs Inso: catalog facts
Karate	Inso
Free Free and open source.	Free Free to download and use as part of Kong's Insomnia platform.
Command line	macOS, Command line
API testing, mocks, performance and UI automation in one tool Readable test scenarios	Runs Insomnia tests and collection runs in CI/CD Lints API specifications with support for custom rules
Requires a Java environment Tests are written as scripts rather than built in a GUI	Most useful alongside the Insomnia desktop app Command line only, no graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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