meziantou 

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

Run xUnit test cases in parallel

C# wrapper around CredWrite/CredRead/CredDelete/CredUIPromptForWindowsCredentials/CredUICmdLinePromptForCredentials functions to store and retrieve from Windows Credential Store

Microsoft.Extension.Logging.ILogger implementation for xunit

A Roslyn analyzer to help migrate from Xunit / NUnit assertions to FluentAssertions

Lots of utility classes

Source Generator to help multi-targeting projects.

Allow to declare 'InternalsVisibleTo' in the csproj file, rather than declaring them to an AssemblyInfo.cs file.

An in-memory implementation of Microsoft.Extension.Logging.ILogger

Microsoft.Extension.Logging.ILogger implementation for xunit.v3

FullPath makes it easier to deal with paths

Use FontAwesome in WPF application

CLI tool to validate NuGet packages follows best-practices

Enables verification of objects using inline snapshots

One-way serializer to a human readable format

A package to configure .NET coding style and static analysis

Generate a faster ToString method for enumerations

CODEOWNERS file parser

Source Generator to generate strongly-typed id with all needed helpers such as converters for System.Text.Json, Newtonsoft.Json, or MongoDB.

Run xUnit test cases in parallel