Awesome Open Source
Awesome Open Source
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The Top 9,756 C Sharp Open Source Projects

Categories > Programming Languages > C Sharp
Shadowsocks Windows 47,787
If you want to keep a secret, you must also hide it from yourself.
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Codehub 22,759
CodeHub is an iOS application written using Xamarin
Powershell 17,715
PowerShell for every system!
Cntk 16,694
Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit
Aspnetcore 16,164
ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
Wox 15,779
Launcher for Windows, an alternative to Alfred and Launchy.
Flatbuffers 13,866
FlatBuffers: Memory Efficient Serialization Library
Wavefunctioncollapse 13,816
Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics.
Dnspy 13,449
.NET debugger and assembly editor
Eshoponcontainers 12,877
Cross-platform .NET sample microservices and container based application that runs on Linux Windows and macOS. Powered by .NET Core 3.0, Docker Containers and Azure Kubernetes Services. Supports Visual Studio, VS for Mac and CLI based environments with Docker CLI, dotnet CLI, VS Code or any other code editor.
Roslyn 12,483
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
Coreclr 12,337
CoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.
Dapper 12,006
Dapper - a simple object mapper for .Net
Sharex 11,771
ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to many supported destinations you can choose from.
Awesome Dotnet Core 11,415
🐝 A collection of awesome .NET core libraries, tools, frameworks and software
Screentogif 9,895
🎬 ScreenToGif allows you to record a selected area of your screen, edit and save it as a gif or video.
Ilspy 9,618
.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!
Efcore 8,772
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Mono 8,532
Mono open source ECMA CLI, C# and .NET implementation.
Materialdesigninxamltoolkit 8,348
Google's Material Design in XAML & WPF, for C# & VB.Net.
Avalonia 8,187
A multi-platform .NET UI framework
Aspnetboilerplate 8,025
ASP.NET Boilerplate - Web Application Framework
Signalr 7,966
Incredibly simple real-time web for .NET
Newtonsoft.json 7,611
Json.NET is a popular high-performance JSON framework for .NET
Polly 7,178
Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.
Openra 7,154
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.
Microservices Demo 7,083
Sample cloud-native application with 10 microservices showcasing Kubernetes, Istio, gRPC and OpenCensus.
Nancy 7,059
Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
Restsharp 7,054
Simple REST and HTTP API Client for .NET
Automapper 7,010
A convention-based object-object mapper in .NET.
V2rayn 6,863 6,803
Documentation for ASP.NET Core
Machinelearning 6,766
ML.NET is an open source and cross-platform machine learning framework for .NET.
Cefsharp 6,736
.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework
Mal 6,687
mal - Make a Lisp
Mahapps.metro 6,636
A framework that allows developers to cobble together a better UI for their own WPF applications with minimal effort.
Monogame 6,466
One framework for creating powerful cross-platform games.
Orleans 6,347
Orleans is a cross-platform framework for building distributed applications with .NET
Unitycsreference 6,328
Unity C# reference source code
Choco 6,286
Chocolatey - the package manager for Windows
Weixinmpsdk 5,952
微信公众平台SDK Senparc.Weixin for C#,支持.NET Framework及.NET Core。已支持微信公众号、小程序、小游戏、企业号、企业微信、开放平台、微信支付、JSSDK、微信周边等全平台。 WeChat SDK for C#.
Fluentterminal 5,947
A Terminal Emulator based on UWP and web technologies.
Identityserver4 5,942
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
Mvc 5,753
[Archived] ASP.NET Core MVC is a model view controller framework for building dynamic web sites with clean separation of concerns, including the merged MVC, Web API, and Web Pages w/ Razor. Project moved to
Jellyfin 5,633
The Free Software Media System
Hangfire 5,519
An easy way to perform background job processing in your .NET and .NET Core applications. No Windows Service or separate process required
Csharplang 5,341
The official repo for the design of the C# programming language
Ailab 5,337
Experience, Learn and Code the latest breakthrough innovations with Microsoft AI
Reactiveui 5,276
An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.
Fluentvalidation 5,149
A popular .NET validation library for building strongly-typed validation rules.
Vfsforgit 5,097
Virtual File System for Git: Enable Git at Enterprise Scale 5,052
An installation and update framework for Windows desktop apps
Sonarr 5,046
Smart PVR for newsgroup and bittorrent users.
Benchmarkdotnet 5,046
Powerful .NET library for benchmarking
Quicklook 4,975
Bring macOS “Quick Look” feature to Windows
Server 4,864
The core infrastructure backend (API, database, Docker, etc).
Blockchain 4,863
A simple Blockchain in Python
Archisteamfarm 4,840
C# application with primary purpose of idling Steam cards from multiple accounts simultaneously.
Duplicati 4,839
Store securely encrypted backups in the cloud!
Ocelot 4,782
.NET core API Gateway
Litedb 4,733
LiteDB - A .NET NoSQL Document Store in a single data file -
Servicestack 4,707
Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
Gitextensions 4,671
Git Extensions is a standalone UI tool for managing git repositories. It also integrates with Windows Explorer and Microsoft Visual Studio (2015/2017/2019).
Humanizer 4,568
Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities
Docker Lambda 4,499
Docker images and test runners that replicate the live AWS Lambda environment
Locale Emulator 4,467
Yet Another System Region and Language Simulator
Mediatr 4,458
Simple, unambitious mediator implementation in .NET
Nopcommerce 4,453
The most popular open source ecommerce shopping cart solution based on ASP.NET Core
Sparkleshare 4,388
Share and collaborate by syncing with any Git repository instantly. Linux, macOS, and Windows.
Osu 4,358
rhythm is just a *click* away!
Nlog 4,338
NLog - Advanced and Structured Logging for Various .NET Platforms
Entitas Csharp 4,254
Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity
Wpf 4,233
WPF is a .NET Core UI framework for building Windows desktop applications. 4,224
Build cross platform desktop apps with ASP.NET Core.
Pushsharp 4,216
A server-side library for sending Push Notifications to iOS (iPhone/iPad APNS), Android (C2DM and GCM - Google Cloud Message), Windows Phone, Windows 8, Amazon, Blackberry, and (soon) FirefoxOS devices!
Xamarin.forms 4,204
Xamarin.Forms Official Home
Reactive 4,175
The Reactive Extensions for .NET
Msbuild 4,149
The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.
Shadowsocksr Csharp 4,093
Practical Aspnetcore 4,056
Practical samples of aspnet core 2.1, 2.2, 3.0 and 3.1 projects you can use. Readme contains explanations on all projects.
Unirx 4,049
Reactive Extensions for Unity
Eshoponweb 4,018
Sample ASP.NET Core 3.1 reference application, powered by Microsoft, demonstrating a layered application architecture with monolithic deployment model. Download the eBook PDF from docs folder.
Stackexchange.redis 3,994
General purpose redis client
Graphql Dotnet 3,981
GraphQL for .NET
Mremoteng 3,941
mRemoteNG is the next generation of mRemote, open source, tabbed, multi-protocol, remote connections manager.
Cleanarchitecture 3,920
A starting point for Clean Architecture with ASP.NET Core
Opserver 3,916
Stack Exchange's Monitoring System
Live Charts 3,914
Simple, flexible, interactive & powerful charts, maps and gauges for .Net
Faster 3,904
Fast persistent recoverable log and key-value store, in C# and C++, from Microsoft Research.
De4dot 3,877
.NET deobfuscator and unpacker.
Refit 3,863
The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.
Jackett 3,855
API Support for your favorite torrent trackers.
Radarr 3,807
A fork of Sonarr to work with movies à la Couchpotato.
Asm Dude 3,802
Visual Studio extension for assembly syntax highlighting and code completion in assembly files and the disassembly window
Framework 3,744
Machine learning, computer vision, statistics and general scientific computing for .NET
Imagesharp 3,742
📷 A modern, cross-platform, 2D Graphics library for .NET
Quartznet 3,733
Quartz Enterprise Scheduler .NET
Optikey 3,711
OptiKey - Full computer control and speech with your eyes
Winsw 3,710
A wrapper executable that can be used to host any executable as an Windows service, in a liberal license
Hearthstone Deck Tracker 3,684
A deck tracker and deck manager for Hearthstone on Windows
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