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Warthog vs Insomnia: catalog facts
Warthog	Insomnia
Free Free to download from GitHub.	Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…
Windows, macOS, Linux	Windows, macOS, Linux
Automatic parsing of proto definitions into input forms Several authentication methods, including JWT and GCE	REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional
gRPC only, no REST or GraphQL Small project with a small user base	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
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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