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WireMock vs Prism: catalog facts
WireMock	Prism
Freemium The core engine is free and open source; WireMock Cloud has a free tier and paid plans.	Free Free and open source.
Web, Self-hosted, Command line	Command line
Flexible request matching and response templating Record and playback of real service traffic	Mock server generated directly from an OpenAPI file Validation proxy catches contract drift
Standalone mode needs Java or Docker Collaboration features are in the paid cloud product	Depends on a complete, accurate specification Command-line only
Downloadable app, Self-hosted, Hosted service	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 24, 2026

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