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Mockbin vs Stoplight: catalog facts
Mockbin	Stoplight
Free Free and open source, with no sign-up.	Freemium A free plan is available to get started, with paid plans for larger teams.
Web	Web
Custom status, headers and body for a mock endpoint Generates mocks from an OpenAPI 3.x document	Visual OpenAPI editor that needs little specialised knowledge Mock servers from the API description
Fixed responses rather than programmable logic Losing browser storage loses the list of your bins	Hosted service that requires an account Focused on teams and organisations rather than individual use
Web application	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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