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Insomnia vs Nitro: catalog facts
Insomnia	Nitro
Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…	Freemium Free to start, with paid options for teams on the ChilliCream platform.
Windows, macOS, Linux	macOS, Web
REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional	Dedicated environment for exploring and querying GraphQL APIs Works alongside Hot Chocolate and Fusion on .NET
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 GraphQL rather than REST or other APIs Product site is aimed mainly at enterprise platform users
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: Apache-2.0	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 21, 2026	Official website Full listing and sources Checked October 2, 2026

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