Top 20 NuGet mocking Packages

NSubstitute is a friendly substitute for .NET mocking libraries. It has a simple, succinct syntax to help developers write clearer tests. NSubstitute is designed for Arrange-Act-Assert (AAA) testing and with Test Driven Development (TDD) in mind.
Moq is the most popular and friendly mocking framework for .NET.
It's faking amazing! The easy mocking library for .NET that works great in C# and VB.NET alike. No need to know the difference between a stub, a mock or a spy, everything's a fake! The easy to use, refactoring friendly API makes faking a breeze.
Utilities to streamline unit testing in Dynamics CRM 365 by faking the IOrganizationService against an In-Memory context which runs blazing fast.
Pester provides a framework for running BDD style Tests to execute and validate PowerShell commands inside of PowerShell and offers a powerful set of Mocking Functions that allow tests to mimic and mock the functionality of any command inside of a piece of PowerShell code being tested. Pester tests ...
The most powerful free mocking library available for .NET developers.
NTestDataBuilder has been renamed to TestStack.Dossier.
Utilities to streamline unit testing in Dynamics CRM 365 by faking the IOrganizationService against an In-Memory context which runs blazing fast.
Fody add-in for changing all members to virtual.
Unit testing framework for Sitecore.
Unit testing framework for Sitecore.
It's what a Mocking Framework should be. Powerful. And it's the first of its kind.
Dynamic mocking framework for .NET
Utilities to streamline unit testing in Dynamics CRM 2016 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.
Library that provides methods that will help you with mocking Entity Framework Core.
Mocklis is a library and source code generator for .net, targeted at generating test doubles from interfaces. This package contains tools for writing tests using the generated code.
A unit testing framework, built on Moq, for Microsoft Dynamics 365 CE
Autofac extension supporting generation of FakeItEasy objects.
Unit testing framework for Sitecore.
Utilities to streamline unit testing in Dynamics CRM 2011 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.