Compare software

MockServer vs Mockoon: catalog facts
MockServer	Mockoon
Free Free and open source with no SaaS account needed.	Freemium The desktop app and CLI are free and open source; Mockoon Cloud is a paid add-on.
Self-hosted, Command line	Windows, macOS, Linux, Command line
Mocks and proxies HTTP up to HTTP/3 plus gRPC Records and replays real traffic	No account or remote deployment needed Imports OpenAPI specifications
Aimed at developers and test setups rather than manual API exploration Configuration takes some learning for complex scenarios	Focused on REST APIs Hosted deployments require the paid cloud service
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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