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Kreya vs websocat: catalog facts
Kreya	websocat
Freemium A free tier is available. Advanced features require a paid licence.	Free Free and open source.
Windows, macOS, Linux	Command line
One of the few desktop clients with proper gRPC and server reflection support Projects are Git-friendly local files rather than cloud documents	Quick interactive testing of WebSocket endpoints Works in pipes and shell scripts
Some features require a paid licence Smaller community than the mainstream API clients	Command line only Advanced options take time to learn
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
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 22, 2026	Official website Full listing and sources Checked September 23, 2026

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