xUnit.net is a free, open source, community-focused unit testing tool for the .NET Framework. Written by the original inventor of NUnit v2, xUnit.net is the latest technology for unit testing C# and F# (other .NET languages may work as well, but are unsupported). xUnit.net works with Visual Studio, Visual Studio Code, ReSharper, CodeRush, and TestDriven.NET. It is part of the .NET Foundation, and operates under their code of conduct. It is licensed under Apache 2 (an OSI approved license).

For project documentation, please visit the xUnit.net project home.

• New to xUnit.net? Get started with .NET Framework, .NET Core, and devices.
• Need some help building the source? See BUILDING.md.
• Want to contribute to the project? See CONTRIBUTING.md.
• Want to contribute to the assertion library? See the suggested contribution workflow in the assertion library project, as it is slightly more complex due to code being spread across two GitHub repositories.

	Stable	Latest CI (how to use)	Build status
v3 core framework
v2 core framework
xunit.analyzers
xunit.runner.visualstudio

For complete CI package lists, please visit the feedz.io package search. A free login is required.

Special thanks to the .NET on AWS Open Source Software Fund for sponsoring the ongoing development of xUnit.net.

Help support this project by becoming a sponsor through GitHub Sponsors.