Location via proxy:   
[Report a bug]   [Manage cookies]                

Create mock APIs in seconds

Mockoon is the easiest and quickest way to design and run mock REST APIs.
No remote deployment, no account required, free and open-source.

Mockoon screenshot with people working

Trusted by awesome teams at

Person sitting on a fast counter

API mocking that saves you time

Get working mock REST APIs in seconds with an intuitive and easy-to-use interface.
Run them everywhere with the CLI.

Persons working together

Integrates with your workflow

Compatible with the OpenAPI specification, Mockoon integrates perfectly with your existing applications and API design workflow.

Persons looking at a diagram

Complete tooling

Go beyond mocking with advanced features and tackle the most complex situation with HTTP requests recording, proxying, integration testing, etc.

Highly customizable and powerful mock APIs

Mockoon offers a wide range of features to create the most realistic mock APIs: dynamic templating, rules matching, JSON databases, proxy mode, webhooks, TLS support, and more.

Mockoon customizable interface screenshot with multiple features displayed

Create realistic scenarios and test edge cases

Simulate real-life scenarios and improve integration testing with dynamic templating and rules-matching systems. Test your app resilience with chaos engineering features.

Mockoon main interface screenshot with response rules and templating system

Integrate with your existing APIs and workflows

Forward requests to your real APIs, record and replay them. Ensure your app performs flawlessly with real-world data and responses.

Mockoon requests recording screenshot

Collaborate with your team in real-time

Supercharge your team productivity with Mockoon Cloud. Collaborate on your mock APIs in real-time, deploy them to the cloud, and share them with your team.

mockoon cloud feature linked together

Self-host your mock APIs

Use the CLI and the Docker image to run your mock REST APIs on servers and headless environments: GitHub Actions, CircleCI, TravisCI, etc.

Mockoon CLI start and list commands screenshot

Deploy your mock APIs in cloud functions

Deploy your mock REST APIs in cloud functions, compatible with most providers: AWS Lambda, GCP Functions, Firebase Functions, etc.

Mockoon CLI start and list commands screenshot

Privacy friendly and offline first

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.

Mockoon interface with a security lock

Platinum

GitHub logoLocalazy logo

Case studies

Discover how Mockoon's users improve their API design and development workflows with our fast and easy to use API tooling.

Uses Mockoon to conduct API UX research

Read more

Uses API mocking to speed up application development and testing

Read more