Spin up a realistic mock API from a desktop app in under a minute.
Mockoon is a free desktop application and CLI for creating mock REST APIs with dynamic response templating, rule-based routing, proxying to a real backend for unmocked routes, and OpenAPI import and export. It is the fastest path from 'the backend does not exist yet' to a working front end.
Best for
From $9 per user/month (indicative, Cloud)
Free tierFree tier: The desktop app and CLI are free and open source.
What drives the bill: Free locally; the paid cloud tier adds hosted mocks and team sync.
Check current pricing on Mockoon’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
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