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Firecamp vs Yaak: catalog facts
Firecamp	Yaak
Free Free to use as a guest; an account unlocks saved collections and team features.	Freemium Yaak is MIT licensed and free to build and use. Development is funded by…
Web	Windows, macOS, Linux
Handles REST, GraphQL, WebSocket and Socket.IO in one tool Guest mode lets you send requests without signing up	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
Saving requests and collections requires an account Team collaboration depends on the hosted service	A much younger project than Postman, with a smaller community No hosted collaboration features if that is what you actually want
Web application	Downloadable app
Open source	Open source
License not stated	License: MIT
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.