Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Google's Material Design in XAML & WPF, for C# & VB.Net.

Generate and edit PDF documents in your .NET applications using the open-source QuestPDF library and its C# Fluent API. Build invoices, reports and data exports with ease.

Powerful .NET library for benchmarking

A .NET library that makes it easier to create beautiful console applications.

A framework that allows developers to cobble together a better UI for their own WPF applications with minimal effort.

Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities

📷 A modern, cross-platform, 2D Graphics library for .NET

NLog - Flexible and Structured Logging for various .NET Platforms

Interactive plotting library for .NET

Library to help reading and writing CSV files

Zero allocation LINQ with LINQ to Span, LINQ to SIMD, and LINQ to Tree (FileSystem, JSON, GameObject, etc.) for all .NET platforms and Unity, Godot.

Cross platform GUI framework for desktop and mobile applications in .NET

Math.NET Numerics

A .NET library to run C# code in parallel on the GPU through DX12, D2D1, and dynamically generated HLSL compute and pixel shaders, with the goal of making GPU computing easy to use for all .NET dev…

ReportGenerator converts coverage reports generated by coverlet, OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo, Clover, gcov or lcov into human readable reports in various formats.

UI automation library for .Net

NUnit Framework

The GongSolutions.WPF.DragDrop library is a drag'n'drop framework for WPF

Read and extract text and other content from PDFs in C# (port of PDFBox)

Demo of the potential of C# for systems programming with the .NET native ahead-of-time compilation technology.

ASP.NET Core backend implementation for RealWorld

Extensions for System.Threading.Tasks.Task and System.Threading.Tasks.ValueTask

Sync Outlook with Google, SOGo, Nextcloud or any other CalDAV/CardDAV server

TrayIcon for WPF/WinUI/Uno/MAUI

A Japanese dictionary resource that attaches furigana to individual words

🌈 Colour / Color conversion, interpolation, and comparison for .NET

Implementation MusicBrainz API 2.0 (C#)

💮 Japanese and kanji dictionary .NET library combining JMdict, JMnedict, KANJIDIC, RADKFILE/KRADFILE, and KanjiVG

This extension enables instant color visualization, conversion, and manipulation directly within the Command Palette. Effortlessly preview, transform, and work with colors—no need to leave your wor…