Open source c-sharp projects
Every project in the registry tagged c-sharp, ranked by real GitHub adoption.
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Free, open-source framework for cross-platform game development
微信全平台 .NET SDK， Senparc.Weixin for C#，支持 .NET Framework 及 .NET Core、.NET 10.0。已支持微信公众号、小程序、小游戏、微信支付、企业微信/企业号、开放平台、JSSDK、微信周边等全平台。 WeChat SDK for C#.
Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of tha
NLog - Flexible and Structured Logging for various .NET Platforms
The Redis client for .NET
:cake: Cake (C# Make) is a cross platform build automation system.
SSCMS 基于 .NET Core，能够以最低的成本、最少的人力投入在最短的时间内架设一个功能齐全、性能优异、规模庞大并易于维护的网站平台。链接是SSCMS推出的全新AI视频开源社区：献丑AI
Exceptionless application
Cross Platform C# web crawler framework built for speed and flexibility. Please star this project! +1.
Oqtane is an open-source developer productivity platform for building modern .NET applications and websites that run on Web, Desktop and Mobile.
Pluggable foundation blocks for building distributed apps.
🎉 Welcome to follow the official account of "WPFDevelopers"! It covers the basic controls and custom control library (screenshot controls) of WPF. This projec
Cross-platform video editing (compositing) software.
A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code.
DnsClient.NET is a simple yet very powerful and high performant open source library for the .NET Framework to do DNS lookups
A Tumblr and Twitter Blog Backup Application
Related tags
Frequently asked questions
How many open source c-sharp projects are there?
This registry tracks 18 projects tagged c-sharp, with 114,015 GitHub stars between them. The most-adopted is Avalonia at 31,743 stars.
Are these c-sharp projects free to use?
Yes — 17 of the 18 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which c-sharp project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these c-sharp projects still maintained?
16 of the 18 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.