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RESTer vs Firecamp: catalog facts
RESTer	Firecamp
Free Free browser extension.	Free Free to use as a guest; an account unlocks saved collections and team features.
Browser extension	Web
Any HTTP method, headers and body Saved requests for reuse	Handles REST, GraphQL, WebSocket and Socket.IO in one tool Guest mode lets you send requests without signing up
Runs only inside the browser Fewer collaboration features than full API platforms	Saving requests and collections requires an account Team collaboration depends on the hosted service
Browser extension	Web application
Closed 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 24, 2026	Official website Full listing and sources Checked September 24, 2026

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