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API DashPostman
Free

Free and open source.

 Freemium

A free tier covers individual use with limits on collaborators, collection runs and…

Windows, macOS, Linux Windows, macOS, Linux, Web, Browser extension
  • Generates client code in several languages
  • Previews 40+ response media types
  • The most widely used API client, so collections and tutorials for it are everywhere
  • Collections with environments, pre-request and test scripts, and a built-in runner
  • Younger project than established API clients
  • No browser or mobile version
  • Built around a cloud workspace, and an account is effectively required
  • Offline and local-only use has become harder over successive versions
Downloadable app Downloadable app, Web application, Browser extension
Open source Closed source
License not stated License not stated
No account needed Account needed
Works offline Needs internet

Checked October 2, 2026

Checked September 21, 2026

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