NUnit 4.1.0

Prefix Reserved

Requires NuGet 2.12 or higher.

dotnet add package NUnit --version 4.1.0                
NuGet\Install-Package NUnit -Version 4.1.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="NUnit" Version="4.1.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add NUnit --version 4.1.0                
#r "nuget: NUnit, 4.1.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install NUnit as a Cake Addin
#addin nuget:?package=NUnit&version=4.1.0

// Install NUnit as a Cake Tool
#tool nuget:?package=NUnit&version=4.1.0                

NUnit 4 Framework

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NUnit is a unit-testing framework for all .NET languages. It can run on macOS, Linux and Windows operating systems. NUnit can be used for a wide range of testing, from unit testing with TDD to full fledged system and integration testing. It is a non-opinionated, broad and deep framework with multiple different ways to assert that your code behaves as expected. Many aspects of NUnit can be extended to suit your specific purposes.

The latest version, version 4, is an upgrade from the groundbreaking NUnit 3 framework. It is a modernized version, aimed at taking advantage of the latest .NET features and C# language constructs.

If you are upgrading from NUnit 3, be aware of the breaking changes. Please see the NUnit 4 Migration Guide and take care to prepare your NUnit 3 code before you do the upgrade.

Table of Contents


The latest stable release of the NUnit Framework is available on NuGet or can be downloaded from GitHub. Pre-release builds are available on MyGet.


Documentation for all NUnit projects can be found at the documentation site.


For more information on contributing to the NUnit project, please see and the Developer Docs.

NUnit 3.0 was created by Charlie Poole, Rob Prouse, Simone Busoli, Neil Colvin and numerous community contributors. A complete list of contributors since NUnit migrated to GitHub can be found on GitHub.

Earlier versions of NUnit were developed by Charlie Poole, James W. Newkirk, Alexei A. Vorontsov, Michael C. Two and Philip A. Craig.


NUnit is Open Source software and NUnit 4 is released under the MIT license. Earlier releases used the NUnit license. Both of these licenses allow the use of NUnit in free and commercial applications and libraries without restrictions.

NUnit Projects

NUnit is made up of several projects. When reporting issues, please try to report issues in the correct project.

Core Projects

  • NUnit Test Framework - The test framework used to write NUnit tests (this repository)
  • NUnit Visual Studio Adapter - Visual Studio/Dotnet adapter for running NUnit 3 and 4 tests in Visual Studio or the dotnet command line.
  • NUnit Console and Engine - Runs unit tests from the command line and provides the engine that is used by other test runners to run NUnit tests.

Visual Studio Extensions

NUnit Engine Extensions

Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Framework net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1.1K)

Showing the top 5 NuGet packages that depend on NUnit:

Package Downloads

Package to use SpecFlow with NUnit 3.13 and later


UI Automation Framework for testing Android and iOS apps.


By leveraging some features of NUnit3, this extension turns AutoFixture into a declarative framework for writing unit tests. In many ways it becomes a unit testing DSL (Domain Specific Language).


NUnitLite provides a simple way to run NUnit tests, without the overhead of a full NUnit installation. It is suitable for projects that want to have a quick way to run tests using a console runner and don't need all the features of the NUnit engine and console runner. Supported platforms: - .NET Framework 4.6.2+ - .NET 6.0+ How to use this package: 1. Create a console application for your tests and delete the generated class containing Main(). 2. Install the NUnitLite package, which creates a new Main() as well as adding a reference to NUnitLite. This will also bring in the NUnit package, which adds a reference to the NUnit framework to your project. 3. Add your tests to the test project and simply start the project to execute them.


Playwright enables reliable end-to-end testing for modern web apps. This package brings in additional helpers and fixtures to enable using it within NUnit.

GitHub repositories (1.4K)

Showing the top 5 popular GitHub repositories that depend on NUnit:

Repository Stars
Experimental Nintendo Switch Emulator written in C#
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!
🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。
Version Downloads Last updated
4.1.0 5,404,203 2/25/2024
4.0.1 4,335,971 12/2/2023
4.0.0 253,889 11/26/2023
4.0.0-beta.1 96,663 10/8/2023
3.14.0 6,697,111 11/3/2023
3.13.3 74,297,276 3/20/2022
3.13.2 43,955,045 4/27/2021
3.13.1 18,243,720 2/1/2021
3.13.0 7,480,039 1/7/2021
3.12.0 75,697,683 5/15/2019
3.11.0 27,322,759 10/7/2018
3.10.1 18,504,353 3/13/2018
3.10.0 442,080 3/13/2018
3.9.0 9,398,722 11/10/2017
3.8.1 16,750,090 8/29/2017
3.8.0 344,091 8/28/2017
3.7.1 3,993,954 6/6/2017
3.7.0 1,550,797 5/30/2017
3.6.1 5,944,713 2/26/2017
3.6.0 2,752,430 1/10/2017
3.5.0 4,583,238 10/4/2016
3.4.1 2,622,650 6/30/2016
3.4.0 155,780 6/25/2016
3.2.1 1,325,922 4/19/2016
3.2.0 965,688 3/5/2016
3.0.1 1,907,827 12/2/2015
3.0.0 919,410 11/16/2015
3.0.0-rc-3 11,516 11/14/2015
3.0.0-rc-2 12,042 11/8/2015
3.0.0-rc 13,011 11/1/2015
3.0.0-beta-5 21,040 10/17/2015
3.0.0-beta-4 18,108 8/25/2015
3.0.0-beta-3 18,941 7/15/2015
3.0.0-beta-2 24,543 5/13/2015
3.0.0-beta-1 15,456 3/26/2015
3.0.0-alpha-5 24,741 1/31/2015
3.0.0-alpha-4 15,000 12/31/2014
3.0.0-alpha-3 14,153 11/29/2014
3.0.0-alpha-2 27,823 11/3/2014
3.0.0-alpha 23,839 9/23/2014
2.7.1 503,798 8/21/2019
2.7.0 271,381 8/10/2018
2.6.7 147,749 7/7/2018
2.6.6 36,450 6/7/2018
2.6.5 119,894 4/20/2018
2.6.4 14,261,687 12/17/2014
2.6.3 6,594,227 10/11/2013
2.6.2 2,865,458 10/23/2012
2.6.1 465,357 8/5/2012 752,947 2/24/2012 1,021,588 4/25/2011 179,244 2/9/2011 733,428 1/7/2011