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xunit/xunit

xUnit.net is a free, open source, community-focused unit testing tool for .NET.

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xunit/xunit has 4.5k+ stars and 800+ forks on GitHub, is written in C#, and was last pushed on Oct 14, 2026. Data as of . Signed-in members get hourly updates — create a free account.

Summary Information

Updated 12 minutes ago
Type:FrameworkCategory(s):Testing, QA & Browser AutomationDeveloper Tools
Added to GitGenius on September 15th, 2026
Created on May 6th, 2013
Open Issues & Pull Requests: 15 (+0)
GitHub issues: Enabled
Number of forks: 846
Total Stargazers: 4,614 (+0)
Total Subscribers: 155 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 11.2 hours
Mean response time: 119.5 days
90th percentile: 95.1 days
Tracked items: 566

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Maintainer activity

2 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 11, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits.

How this project is maintained

Practically every issue opened in the past year has drawn a reply. Work labelled "By Design" is answered fastest, typically in about 7 hours, while "Feature" waits about 11 days. 98% of issues opened in the past year have since been closed. Three people close 84% of everything that gets resolved.

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Issue Activity (beta)

Open issues: 13
New in 7 days: 6
Closed in 7 days: 7
Avg open age: 1,038 days
Stale 30+ days: 10
Stale 90+ days: 9

Recent activity

Opened in 7 days: 5
Closed in 7 days: 4
Comments in 7 days: 26
Events in 7 days: 43

Top labels

  • Bug (106)
  • Core framework (92)
  • Feature (90)
  • Analyzers (56)
  • help wanted (54)
  • External (47)
  • By Design (45)
  • Discussion (23)

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Detailed Description

xUnit.net is a free, open source unit testing framework for .NET that supports C#, F#, and Visual Basic across .NET 8.0 and later as well as .NET Framework 4.7.2 and later.

The framework addresses the need for a modern testing tool tailored to the .NET ecosystem. It integrates with the .NET SDK command line tools and works across multiple development environments including Visual Studio, Visual Studio Code, JetBrains Rider, and NCrunch. The tool is compatible with both the Microsoft Testing Platform and VSTest, allowing developers to run tests through their preferred tooling without friction.

Teams building .NET applications should consider xUnit.net if they want a testing framework designed specifically for the platform with broad IDE and tooling support. The project is part of the .NET Foundation and operates under established governance, providing stability for long-term adoption. Developers migrating from other testing frameworks or starting new .NET projects will find comprehensive documentation and a straightforward setup process through the .NET SDK.

The project maintains active development with regular updates to support current .NET versions. The codebase is organized across multiple repositories, including a separate assertion library, indicating a modular approach to maintenance. The project operates under clear governance with a defined Project Lead and established contribution guidelines, and it welcomes community involvement through documented contribution workflows.