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EchoAPI vs Thunder Client: catalog facts
EchoAPI	Thunder Client
Freemium Usable without an account, with paid plans listed on the pricing page.	Freemium A free tier is available. Paid licences add team and advanced features.
Command line	Windows, macOS, Linux
Works without logging in and offline Runs Postman scripts	Runs inside the editor, so no second application to switch to Collections stored as repository files instead of a cloud account
Closed source Some features are tied to paid plans	Team features and some collection capabilities require a paid licence Tied to VS Code and JetBrains editors
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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