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EchoAPIPostman
Freemium

Usable without an account, with paid plans listed on the pricing page.

 Freemium

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

Command line Windows, macOS, Linux, Web, Browser extension
  • Works without logging in and offline
  • Runs Postman scripts
  • 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
  • Closed source
  • Some features are tied to paid plans
  • 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
Closed source Closed source
License not stated License not stated
No account needed Account needed
Works offline Needs internet

Checked September 23, 2026

Checked September 21, 2026

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