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Insomnia vs Swagger Editor: catalog facts
Insomnia	Swagger Editor
Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…	Free Free to use in the browser.
Windows, macOS, Linux	Web
REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional	Edit OpenAPI definitions in the browser Send live requests to the described API
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	Focused on OpenAPI files rather than ad hoc requests No saved request collections like a full API client
Downloadable app	Web application
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Not stated if it 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.