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Postman vs Testfully: catalog facts
Postman	Testfully
Freemium A free tier covers individual use with limits on collaborators, collection runs and…	Freemium Free to start with offline use; paid and enterprise plans available.
Windows, macOS, Linux, Web, Browser extension	Web, Browser extension
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	Choice of local offline storage or cloud sync Imports from Postman and Insomnia
Built around a cloud workspace, and an account is effectively required Offline and local-only use has become harder over successive versions	Proprietary Team and monitoring features are aimed at paid plans
Downloadable app, Web application, Browser extension	Downloadable app, Web application, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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