Get working mock REST APIs in seconds with an intuitive and easy-to-use interface.
Run them everywhere with the CLI.
Compatible with the OpenAPI specification, Mockoon integrates perfectly with your existing applications and API design workflow.
Go beyond mocking with advanced features and tackle the most complex situation with HTTP requests recording, proxying, integration testing, etc.
Mockoon offers you complete flexibility when creating your mocks: custom statuses, route and global headers, file serving or body editor, HTTPS, etc.
Simulate real-life scenarios with dynamic templating and the response rules system. Test your app resilience with sequential and random responses.
Easily integrate Mockoon with existing backends and APIs by intercepting selected endpoints and forwarding the rest. Debug intricated situation with the built-in session recording.
Use the CLI and the Docker image to run your mock REST APIs on servers and headless environments: GitHub Actions, CircleCI, TravisCI, etc.
Deploy your mock REST APIs in cloud functions compatible with any provider: AWS Lambda, GCP Functions, Firebase Functions, etc.
Our tools are offline first and require no account creation. They are privacy-friendly, making them the best choice for highly regulated or high-security environments.