Compare software

YaadeYaak
Free

Free and open source to self-host.

 Freemium

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

Web, Self-hosted, Browser extension Windows, macOS, Linux
  • Self-hosted, so request data stays on your server
  • Shared collections for team collaboration
  • 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
  • Requires running and maintaining a server
  • Commit activity has slowed since May 2025
  • A much younger project than Postman, with a smaller community
  • No hosted collaboration features if that is what you actually want
Self-hosted, Browser extension 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 Works offline

Checked October 2, 2026

Checked September 21, 2026

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