Create mock APIs in seconds with Mockoon

Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

Mockoon is a free and open-source desktop application that allows users to easily create mock APIs for development and testing purposes. It provides a user-friendly interface to simulate API responses without the need for a backend server, making it an invaluable tool for frontend developers, testers, and anyone involved in API development.

Website Key Features

Easy to Use

Mockoon offers a straightforward and intuitive interface, enabling users to quickly set up mock APIs without extensive configuration.

Cross-Platform

Available on Windows, macOS, and Linux, ensuring developers can use Mockoon regardless of their operating system.

No Server Required

Runs locally on your machine, eliminating the need for an internet connection or external server to mock APIs.

Customizable Responses

Users can define custom HTTP status codes, headers, and body responses to simulate various API behaviors.

Proxy Mode

Mockoon can proxy requests to an actual API, allowing for partial mocking or recording of API responses.

Import/Export

Supports importing and exporting mock API configurations for easy sharing and version control.

Multiple Environments

Allows the creation of multiple mock environments to simulate different stages of development or testing scenarios.

Dynamic Responses

Supports templating and dynamic variables in responses to simulate real-world API behaviors.