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Mockbin vs PutsReq: catalog facts
Mockbin	PutsReq
Free Free and open source, with no sign-up.	Free The site lists no paid plans.
Web	Web
Custom status, headers and body for a mock endpoint Generates mocks from an OpenAPI 3.x document	Records and shows full HTTP requests sent to a unique URL Responses are scripted in JavaScript with custom status, headers and body
Fixed responses rather than programmable logic Losing browser storage loses the list of your bins	License is not stated in the available information Fewer features than full request inspection services
Web application	Web application
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
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.