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https://github.com/mockoon/mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
https://github.com/mockoon/mockoon

api application desktop electron good-first-issue mock mock-api mock-data mock-server mocking mocking-server mocking-utility openapi openapi3 prototyping rest rest-api server swagger

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

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Mockoon: awesome API mocking





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



It combines a [desktop application](https://mockoon.com/download/) to design and run mock servers locally, and a [CLI](https://mockoon.com/cli/) to self-host your fake APIs. A [cloud](#subscribe-to-mockoon-cloud) is also available to collaborate with your team, keep your data in sync, and deploy your mock APIs. 



API mocking helps you speed up development and third-party API integration by reducing dependency on external services and their limitations: rate limits, costs, availability, etc. 

It also allows you to test your applications in a controlled environment with predictable responses, status codes, and latencies, and easily simulate edge cases and error scenarios.

Finally, you can onboard new team members faster by providing them with a consistent and reliable environment to test and develop their applications.



➡️ [Download](https://mockoon.com/download/)





  




## Features



Mockoon offers many features:



- Unlimited number of mock local servers and routes

- CLI to run your mock in headless environments, CI, etc.

- Complete control on routes definition: HTTP methods and statuses, regex paths, file serving, custom headers, etc.

- OpenAPI compatibility

- Record/logs of all entering and forwarded requests

- JSON templating

- Proxy forwarding mode

- HTTPS support



You can check the [complete list](https://mockoon.com/features/) on the website.



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## Our sponsors



### Platinum





  

      

      

      

      GitHub logo

      

         

  

      

      

      

      Localazy logo

      

  




### Silver



  

    

      emqx logo

  




Mockoon is an open-source project built by volunteer maintainers. If you like our application, please consider sponsoring us and join all the [Sponsors and Backers](https://github.com/mockoon/mockoon/blob/main/backers.md) who helped this project over time!





sponsor button




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## Download the desktop application



You can get Mockoon desktop's [latest release](https://github.com/mockoon/mockoon/releases/latest) directly from this repository or on the official [website](https://mockoon.com/download/). Mockoon desktop is also available through:



MacOS:



- [_Homebrew_](https://formulae.brew.sh/cask/mockoon): `brew install --cask mockoon`.



Windows:



- _winget_: `winget install mockoon`.

- [_Chocolatey_](https://community.chocolatey.org/packages/mockoon): `choco install mockoon`.

- [_Windows Store_](https://www.microsoft.com/en-us/p/mockoon/9pk8dmsn00jj)



Linux:



- [_Snap store_](https://snapcraft.io/mockoon): `snap install mockoon`.

- [_AUR_](https://aur.archlinux.org/packages/mockoon-bin): `yay -S mockoon-bin`.



## Install the CLI



Mockoon CLI is available as an [NPM package](https://www.npmjs.com/package/@mockoon/cli). Please check our [dedicated documentation](https://github.com/mockoon/mockoon/blob/main/packages/cli/README.md) to learn how to install and use it.



## Use in cloud functions and serverless environments



Mockoon's Serverless [NPM package](https://www.npmjs.com/package/@mockoon/serverless) provides an easy way to run Mockoon's mock APIs in cloud functions and serverless environments: AWS Lambda, GCP Functions, Firebase Functions, etc.



Please check our [dedicated documentation](https://github.com/mockoon/mockoon/blob/main/packages/serverless/README.md) to learn how to use it.



## Subscribe to Mockoon Cloud



With advanced features for solo developers and teams, Mockoon Cloud supercharges your API development:



- ☁️ [cloud deployments](https://mockoon.com/docs/latest/mockoon-cloud/api-mock-cloud-deployments/)

- 🔄️ [data synchronization and real-time collaboration](https://mockoon.com/docs/latest/mockoon-cloud/data-synchronization-team-collaboration/)

- 🤖 [AI powered API mocking](https://mockoon.com/ai-powered-api-mocking/)

- 📃 Access to dozens of [ready-to-use JSON templates](https://mockoon.com/templates/).

- 💬 Priority support and training.



Upgrade today and take your API development to the next level.





cloud button




## Mockoon's documentation



You will find Mockoon's [documentation](https://mockoon.com/docs/latest/about/) on the official website. It covers Mockoon's most complex features. Feel free to contribute or ask for new topics to be covered.



## Changelogs



You will find Mockoon applications [changelogs](https://mockoon.com/releases/) on the official website.



## Support/feedback



You can discuss all things related to Mockoon and ask for help on the [official community](https://github.com/mockoon/mockoon/discussions). It's also a good place to discuss bugs and feature requests before opening an issue on this repository. For more chat-like discussions, you can also join our [Discord server](https://discord.gg/FtJjkejKGp).



## Contributing



If you are interested in contributing to Mockoon, please take a look at the [contributing guidelines](https://github.com/mockoon/mockoon/blob/main/CONTRIBUTING.md).



Please also take a look at our [Code of Conduct](https://github.com/mockoon/mockoon/blob/main/CODE_OF_CONDUCT.md).



## Roadmap



If you want to know what will be coming in the next release you can check the global [Roadmap](https://mockoon.com/public-roadmap/).



New releases will be announced on Mockoon's [Twitter account @GetMockoon](https://twitter.com/GetMockoon) and through the newsletter to which you can subscribe [here](https://mockoon.com/newsletter/).