Mockoon

Mockoon is an open source desktop application that developers use to mock servers and APIs. It lets a team simulate an API locally before the real one exists, and it is built for quick set-up.

What Mockoon offers

• Unlimited mocks — no cap on how many mock APIs are created.
• OpenAPI support — works with Swagger and OpenAPI formats.
• Rules-based responses — several responses per route, selected by rules.
• Request logging — incoming requests and outgoing responses are recorded for easier debugging.
• Proxy mode — undefined routes can be redirected to a chosen host.
• Templating — a rich templating language for dynamic replies.

Key facts

• Type: desktop application
• Licence: open source