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Yaak vs Insomnia: catalog facts
Yaak	Insomnia
Freemium Yaak is MIT licensed and free to build and use. Development is funded by…	Freemium Free to use, with a free account unlocking most features. Kong sells paid plans for teams…
Windows, macOS, Linux	Windows, macOS, Linux
Requests are stored as files on your machine, so a git repository is the shared collection REST, GraphQL, gRPC, WebSocket and Server-Sent Events in one client	REST, GraphQL, gRPC, WebSockets and Server-Sent Events in one client Local Vault and Git Sync mean the cloud is optional
A much younger project than Postman, with a smaller community No hosted collaboration features if that is what you actually want	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
Open source	Open source
License: MIT	License: Apache-2.0
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 21, 2026

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