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.

G2 rating 4.5
Capterra rating 4.5
Producthunt rating 5
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Trusted by awesome teams at

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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.

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Integrates with your workflow

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

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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.

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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.

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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.

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Trusted by thousands of

Developers! Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
snap install mockoon


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Ubuntu

I can wholeheartedly recommend @GetMockoon if you're looking for an easy way to #mock Http-Endpoints locally.
This tool just works, it's super intuitive. Love it.❤️


Alexandros profile picture

Alexandros

Mockoon is the best! It's the easiest and quickest way to mock APIs locally.


Chuma Umenze profile picture

Chuma Umenze

OMG its a life saving tool for FrontEnd and FullStack developer. Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open-source.


Rubesh Gain profile picture

Rubesh Gain

Forgot to mention an important part of this article. I am leveraging @GetMockoon to implement the APIs!
All credit to @255kb who developed this wonderful tool.


Nabil Kazi profile picture

Nabil Kazi

@255kb Thanks for Mockoon! such a handy tool!


Axel profile picture

Axel

Did I already say that Mockoon is awesome? Mockoon is the easiest and quickest way I found to run mock APIs locally. #RestAPI #Prototyping #DeveloperTools #OpenSource
P.S. It's made with #Electron and this is a huge bonus in my eyes.


Nicola Orritos profile picture

Nicola Orritos

If you're a mobile/frontend developer and you're suffering with DEV environment, start mocking your APIs with @GetMockoon. It's amazing! Thanks, @255kb for creating this! I'm using every time that I develop new iOS projects!


Sr. Décio Montanhani profile picture

Sr. Décio Montanhani

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
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