xUnit.net

Metrics as of 2026-09-22, from the GitHub or GitLab API of each repository. Refreshed monthly.

What xUnit.net is

xUnit.net is an open source unit testing tool for code written in C#, F#, or Visual Basic. Version 3 targets .NET 8.0 and newer, plus .NET Framework 4.7.2 and newer. Supported environments include JetBrains Rider, Visual Studio, Visual Studio Code, NCrunch and the .NET SDK command line. Any environment compatible with Microsoft Testing Platform or VSTest can also run its tests. New test projects are created from the xunit3 template with dotnet new. Facts are tests for invariant conditions, while theories run against supplied data sets. Tests run through dotnet run, dotnet test, IDE test panels, or a console runner. The project belongs to the .NET Foundation.

Written from the project's README, read 2026-09-22, and its documentation (see sources).

Category: Unit testing and test runners
License: Apache-2.0 (One file (src/xunit.v3.runner.common/Utility/ConsoleHelper.cs) is adapted from MSBuild under MIT, as stated in LICENSE.)
Language: C#
Changelog: Releases on GitHub

Repository metrics

Repository metrics
Stars	4,605¹
Forks	847¹
Open issues and PRs	18¹
Contributors	161¹
Commits in the last 90 days	38¹
Last commit	2026-09-22¹
Last release	v3-4.0.1, 2026-09-12¹
Fetched	2026-09-22

¹ Fetched from the GitHub or GitLab API on 2026-09-22. Hover a value for its own date.

Status

activeLast commit within 90 days of the fetch date.

Computed from the last commit date and the archive flag on the fetch date. See the status rules.

Alternatives

Listed unit testing and test runners tools, same primary language first, then by GitHub stars. Each line gives one fact from the tool's documentation where it differs from xUnit.net's, with its source.

NUnit: Languages for writing tests: All .NET languages. source: README
Jest: Languages for writing tests: JavaScript; TypeScript via Babel or ts-jest. source: README
GoogleTest: Languages for writing tests: C++ (the 1.18.x branch requires C++17). source: README
Testify: Languages for writing tests: Go. source: README
Mocha: Languages for writing tests: JavaScript; TypeScript through Node.js type stripping or a loader such as tsx. source: Docs: TypeScript
Catch2: Languages for writing tests: C++. source: README
AVA: Languages for writing tests: JavaScript on Node.js; TypeScript definitions included. source: README
PHPUnit: Languages for writing tests: PHP. source: README

Questions

Is xUnit.net open source?

Yes. xUnit.net is released under Apache-2.0, an OSI-approved license, as reported by the GitHub API on 2026-09-22. One file (src/xunit.v3.runner.common/Utility/ConsoleHelper.cs) is adapted from MSBuild under MIT, as stated in LICENSE.

Is xUnit.net maintained?

On 2026-09-22, the last commit to the default branch was on 2026-09-22, so the listed status is active. Rule: Last commit within 90 days of the fetch date.

How many GitHub stars does xUnit.net have?

4,605 stars on 2026-09-22, from the GitHub API. The number is refreshed at each monthly update.

What language is xUnit.net written in?

The repository's primary language, as reported by the GitHub API, is C#.

Sources

GitHub REST API: repository, read 2026-09-22
GitHub REST API: commits, read 2026-09-22
GitHub REST API: latest release, read 2026-09-22
GitHub REST API: contributors, read 2026-09-22
LICENSE file, read 2026-09-22
README, read 2026-09-22
Getting Started with xUnit.net v3, read 2026-09-22