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Altair GraphQL Client vs Firecamp: catalog facts
Altair GraphQL Client	Firecamp
Freemium The client is free and open source; Altair GraphQL Cloud is an optional hosted service.	Free Free to use as a guest; an account unlocks saved collections and team features.
Windows, macOS, Linux, Web, Browser extension	Web
Schema docs search with one-click query generation Environments, pre-request scripts and file uploads	Handles REST, GraphQL, WebSocket and Socket.IO in one tool Guest mode lets you send requests without signing up
Focused on GraphQL only, not general REST testing Team sync features rely on the separate cloud service	Saving requests and collections requires an account Team collaboration depends on the hosted service
Downloadable app, Browser extension	Web application
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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