servicetitan/Stl.Fusion mit

New computed observables for real-time .NET Core and Blazor apps - like in KO / MobX, but designed for models of arbitrary size covering all of your server-side data. They're created on-demand, stay in RAM while they're used, are immutable and thread-safe. Their always-in-sync replicas can live everywhere, including Blazor code running in the browser to power your real-time UI.
C#

220 stars     12 forks

20 stars today

AutoFixture/AutoFixture mit

AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
C#

1990 stars     286 forks

87 stars today

morelinq/MoreLINQ apache-2.0

Extensions to LINQ to Objects
C#

2087 stars     260 forks

83 stars today

RicoSuter/NSwag mit

The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
C#

3681 stars     729 forks

61 stars today

ravibpatel/AutoUpdater.NET mit

AutoUpdater.NET is a class library that allows .NET developers to easily add auto update functionality to their classic desktop application projects.
C#

1301 stars     415 forks

47 stars today

bleroy/lunr-core mit

A port of LUNR.js to .NET Core
C#

394 stars     9 forks

3 stars today

Fody/PropertyChanged mit

Injects INotifyPropertyChanged code into properties at compile time
C#

1249 stars     175 forks

46 stars today

grandnode/grandnode other

Free and Open Source Ecommerce Shopping Cart solution based on ASP.NET CORE and MongoDB
C#

1301 stars     580 forks

46 stars today

NetchX/Netch mit

Game accelerator. Support Socks5, Shadowsocks, ShadowsocksR, V2Ray, Trojan proxies. UDP NAT FullCone
C#

5505 stars     968 forks

12 stars today

dotnet-architecture/eShopOnContainers mit

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.
C#

14808 stars     6259 forks

6 stars today

ravendb/ravendb other

ACID Document Database
C#

2487 stars     743 forks

1 stars today

BornToBeRoot/NETworkManager gpl-3.0

A powerful tool for managing networks and troubleshoot network problems!
C#

1046 stars     206 forks

41 stars today

dotnet/runtime other

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
C#

3298 stars     1195 forks

9 stars today

dotnet/samples other

Sample code referenced by the .NET documentation
C#

1249 stars     2367 forks

0 stars today

kwsch/NHSE gpl-3.0

Animal Crossing: New Horizons save editor
C#

459 stars     121 forks

0 stars today

vis2k/Mirror mit

A community replacement for Unity's abandoned UNET Networking System.
C#

1502 stars     276 forks

0 stars today

abpframework/abp lgpl-3.0

Open Source Web Application Framework for ASP.NET Core
C#

4276 stars     1358 forks

4 stars today

xamarin/XamarinCommunityToolkit mit

The Xamarin Community Toolkit is a collection of Animations, Behaviors, Converters, and Effects for mobile development with Xamarin.Forms. It simplifies and demonstrates common developer tasks building iOS, Android, and UWP apps with Xamarin.Forms.
C#

411 stars     81 forks

0 stars today

bitwarden/server agpl-3.0

The core infrastructure backend (API, database, Docker, etc).
C#

5944 stars     507 forks

3 stars today

CosmosOS/Cosmos bsd-3-clause

Cosmos is an operating system "construction kit". Build your own OS using managed languages such as C#, VB.NET, and more!
C#

1890 stars     392 forks

0 stars today

microsoft/vstest mit

Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.
C#

576 stars     198 forks

0 stars today

RickStrahl/MarkdownMonster other

An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
C#

972 stars     160 forks

1 stars today

dotnet/wpf mit

WPF is a .NET Core UI framework for building Windows desktop applications.
C#

4593 stars     566 forks

0 stars today

duplicati/duplicati lgpl-2.1

Store securely encrypted backups in the cloud!
C#

5312 stars     594 forks

2 stars today

PowerShell/PSReadLine bsd-2-clause

A bash inspired readline implementation for PowerShell
C#

1600 stars     162 forks

1 stars today

quartznet/quartznet apache-2.0

Quartz Enterprise Scheduler .NET
C#

4010 stars     1245 forks

3 stars today

Perfare/AssetStudio mit

AssetStudio is a tool for exploring, extracting and exporting assets and assetbundles.
C#

4424 stars     774 forks

3 stars today

microsoft/MixedRealityToolkit-Unity mit

Mixed Reality Toolkit (MRTK) provides a set of components and features to accelerate cross-platform MR app development in Unity.
C#

3716 stars     1639 forks

1 stars today

NLog/NLog bsd-3-clause

NLog - Advanced and Structured Logging for Various .NET Platforms
C#

4619 stars     1170 forks

3 stars today

Grabacr07/MetroRadiance mit

Modern WPF Themes (like Visual Studio 2012 or later).
C#

289 stars     92 forks

0 stars today

rocksdanister/lively gpl-3.0

Animated Wallpapers: Turn Videos, Web pages, Games, Emulators into windows wallpapers.
C#

840 stars     94 forks

1 stars today

ppy/osu mit

rhythm is just a *click* away!
C#

5185 stars     999 forks

2 stars today

collinbarrett/FilterLists mit

:shield: The independent, comprehensive directory of filter and host lists for advertisements, trackers, malware, and annoyances.
C#

521 stars     71 forks

0 stars today

dotnet/reactive mit

The Reactive Extensions for .NET
C#

4468 stars     571 forks

0 stars today

AdamRamberg/unity-atoms mit

⚛️ Tiny modular pieces utilizing the power of Scriptable Objects
C#

343 stars     40 forks

0 stars today

JasonStein/Notepads mit

A modern, lightweight text editor with a minimalist design.
C#

2803 stars     196 forks

4 stars today

dotnet/csharplang

The official repo for the design of the C# programming language
C#

5969 stars     655 forks

4 stars today