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Inso vs Karate: catalog facts
Inso	Karate
Free Free to download and use as part of Kong's Insomnia platform.	Free Free and open source.
macOS, Command line	Command line
Runs Insomnia tests and collection runs in CI/CD Lints API specifications with support for custom rules	API testing, mocks, performance and UI automation in one tool Readable test scenarios
Most useful alongside the Insomnia desktop app Command line only, no graphical interface	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 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.