Fast, flexible, fully featured
mocking framework


Key Features

JustMock Lite

JustMock Lite, the free edition of JustMock, is the preferred choice for unit testing projects written according to the SOLID principles that don’t require elevated mocking. If you are working on green-field projects and you don’t have to deal with legacy code, then JustMock Lite is for you. The free open source mocking framework uses the same codebase for easy upgrade to the full edition. Plus, it is commercially backed with 3 major releases per year and continuous product improvement both by Telerik and the open source community.

Learn more about JustMock Lite

Part of DevCraft

JustMock is available for purchase individually, or as a part of DevCraft - the most comprehensive HTML5 and .NET toolbox.

Gain access to the complete stack of products to help you build stunning apps twice as fast:

  • Over 420 UI controls for HTML5 and all .NET technologies
  • Five powerful productivity, code quality and debugging tools for faster development
  • Reporting and data access
More about DevCraft
Telerik DevCraft

Support and Learning

Industry-Leading Support

Expert and Timely Response

The same developers who build JustMock will answer any questions you might have, even during your trial, to make sure your project always gets delivered on time.

Contact Telerik support

Have a Suggestion?

Help us make JustMock even better. Submit your feedback and ideas, request a new feature or simply "like" and follow your favorite items on the JustMock Feedback Portal.

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New Features

Add/Update JustMock Reference

Add/Update JustMock Reference

Every time JustMock has a new version, which you’ve installed, but have forgotten to update the reference, a handy command will prompt you to update. 
Ninject Inegration

Ninject Integration

Ninject integration with the JustMock MockingContainer enables you to use the powerful and intuitive Ninject syntax when using automocking in JustMock.
WinRT mocking

WinRT Mocking

You can now use JustMock in Windows Runtime to perform elevated or non-elevated testing.


I've used a series of mocking tools and I believe that the API for JustMock is the most mature that I've encountered so far. The highest praise that I can give a framework tool is to say that its semantics are readable enough that you don't think about them at all as you're reading the code, and this is true with JustMock.

Erik DietrichSoftware Developer

When isolating methods for testing gets difficult when trying to test against legacy code or databases, JustMock really starts to set itself apart. Its features such as MsCorlib, Sealed, Static, Private method and Entity Framework mocking make the seemingly untestable, testable.

Bradley BraithwaiteSoftware Developer
Contented Coder

I recently dropped another leading mocking tool in favor of JustMock. I was never happy with the other tool’s syntax but I couldn’t find anything else on the market. I’ve found JustMock is a much more pleasant experience.

Brad Irby.NET Architect and author of Reengineering .NET
Reengineering .NET

Next Steps

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