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KreyaYaak
Freemium

A free tier is available. Advanced features require a paid licence.

 Freemium

Yaak is MIT licensed and free to build and use. Development is funded by…

Windows, macOS, Linux Windows, macOS, Linux
  • One of the few desktop clients with proper gRPC and server reflection support
  • Projects are Git-friendly local files rather than cloud documents
  • Requests are stored as files on your machine, so a git repository is the shared collection
  • REST, GraphQL, gRPC, WebSocket and Server-Sent Events in one client
  • Some features require a paid licence
  • Smaller community than the mainstream API clients
  • A much younger project than Postman, with a smaller community
  • No hosted collaboration features if that is what you actually want
Downloadable app Downloadable app
Closed source Open source
License not stated License: MIT
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 21, 2026

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