Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Mac
- Windows
- Linux




Coparrot is described as 'Web service that will return a response with data you specified. It's a mock server that you can use during development or testing without installing anything and without writing any configuration file' and is an app in the development category. There are six alternatives to Coparrot for a variety of platforms, including Mac, Windows, Linux, Web-based and SaaS apps. The best Coparrot alternative is Mockoon, which is both free and Open Source. Other great apps like Coparrot are Reqable, Beeceptor, MockServer and Mockaron.
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.




Reqable is a modern cross-platform project, designed for API development, testing, and debugging. Reqable fully supports HTTP1 and HTTP2 and partially supports HTTP3(QUIC).




Build a mock Rest API endpoint in seconds. Helps you in UI development, Webhooks, simulating delays, simulating exceptions and server errors, performance test, etc.



MockServer can be used for mocking any system you integrate with via HTTP or HTTPS (i.e. services, web sites, etc).
With Mockaron, create mock REST APIs without server configuration or setup. Its intuitive and no-code app makes it super easy to get started.



SmartMock.io is a tool to set up, manage, and troubleshoot HTTP protocol API mocks (REST, SOAP, JSON-RPC) in the cloud. This frees you up to focus on the logic of your mocks and not have to think about boilerplate code of your own HTTP mock servers.



