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Buf Studio vs Kreya: catalog facts
Buf Studio	Kreya
Free Used on the Buf website; check Buf for current terms of the wider Schema Registry.	Freemium A free tier is available. Advanced features require a paid licence.
Web	Windows, macOS, Linux
Sends gRPC and Connect requests from a browser Works with schemas in the Buf Schema Registry	One of the few desktop clients with proper gRPC and server reflection support Projects are Git-friendly local files rather than cloud documents
Limited to Protobuf-based APIs Few details on features or pricing in the available research	Some features require a paid licence Smaller community than the mainstream API clients
Web application	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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