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

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