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EchoAPI vs Insomnia: catalog facts
EchoAPI	Insomnia
Freemium Usable without an account, with paid plans listed on the pricing page.	Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…
Command line	Windows, macOS, Linux
Works without logging in and offline Runs Postman scripts	REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional
Closed source Some features are tied to paid plans	Most features expect an account, even though a Scratch Pad works without one The 2023 move to account-first storage cost it a lot of goodwill
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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