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Mockoon vs Moco: catalog facts
Mockoon	Moco
Freemium The desktop app and CLI are free and open source; Mockoon Cloud is a paid add-on.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Command line
No account or remote deployment needed Imports OpenAPI specifications	Runs a configurable stub server Supports HTTP, REST, WebSocket, and server-sent events
Focused on REST APIs Hosted deployments require the paid cloud service	Requires Java 17 or later
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
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 October 8, 2026

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