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json-server vs WireMock: catalog facts
json-server	WireMock
Free Free to install from npm.	Freemium The core engine is free and open source; WireMock Cloud has a free tier and paid plans.
Windows, macOS, Linux, Command line	Web, Self-hosted, Command line
Mock REST API from a single JSON file No code needed for basic use	Flexible request matching and response templating Record and playback of real service traffic
v1 is in beta and may bring breaking changes Requires Node.js and npm	Standalone mode needs Java or Docker Collaboration features are in the paid cloud product
Downloadable app	Downloadable app, Self-hosted, Hosted service
Closed 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.