Repositories list

• runtime

  Public

  dotnet/runtime’s past year of commit activity
  .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.

  dotnethelp-wantedhacktoberfest

  dotnethelp-wantedhacktoberfest

  C#

  •

  MIT License

  •5.4k5.4k forks•18k18k stars•7.8k7.8k issues•432432 pull requests•Updated Apr 11, 2026Apr 11, 2026

• aspnetcore

  Public

  dotnet/aspnetcore’s past year of commit activity
  ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

  dotnetaspnetcorehelp-wanted+ 1

  dotnetaspnetcorehelp-wantedhacktoberfest

  C#

  •

  MIT License

  •11k11k forks•38k38k stars•3.6k3.6k issues•255255 pull requests•Updated Apr 11, 2026Apr 11, 2026

• dotnet

  Public

  dotnet/dotnet’s past year of commit activity
  Home of .NET's Virtual Monolithic Repository which includes all the code needed to build the .NET SDK.

  dotnetmonorepo

  dotnetmonorepo

  C#

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  MIT License

  •276276 forks•1.1k1.1k stars•132132 issues•5151 pull requests•Updated Apr 11, 2026Apr 11, 2026

• sdk

  Public

  dotnet/sdk’s past year of commit activity
  Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI

  clivisual-studiosdk+ 1

  clivisual-studiosdkdotnet

  C#

  •

  MIT License

  •1.2k1.2k forks•3.1k3.1k stars•2.7k2.7k issues•226226 pull requests•Updated Apr 11, 2026Apr 11, 2026

• android

  Public

  dotnet/android’s past year of commit activity
  .NET for Android provides open-source bindings of the Android SDK for use with .NET managed languages such as C#

  C#

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  MIT License

  •567567 forks•2.1k2.1k stars•409409 issues•3131 pull requests•Updated Apr 11, 2026Apr 11, 2026

• fsharp

  Public

  dotnet/fsharp’s past year of commit activity
  The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

  visual-studiotoolscompiler+ 5

  visual-studiotoolscompilerfsharpfunctional-programmingdotnetnetcoreintellisense

  F#

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  MIT License

  •854854 forks•4.3k4.3k stars•1.2k1.2k issues•9797 pull requests•Updated Apr 11, 2026Apr 11, 2026

• efcore

  Public

  dotnet/efcore’s past year of commit activity
  EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

  c-sharpormdatabase+ 6

  c-sharpormdatabaseentity-frameworkdotnet-coredotnet-standardhacktoberfestdotnet-frameworkaspnet-product

  C#

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  MIT License

  •3.4k3.4k forks•15k15k stars•2.4k2.4k issues•4040 pull requests•Updated Apr 11, 2026Apr 11, 2026

• orleans

  Public

  dotnet/orleans’s past year of commit activity
  Cloud Native application framework for .NET

  distributed-systemsactorsdotnet+ 6

  distributed-systemsactorsdotnetactor-modelconcurrencycloud-computingcloud-nativedistributed-actorsorleans

  C#

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  MIT License

  •2.1k2.1k forks•11k11k stars•657657 issues•5656 pull requests•Updated Apr 11, 2026Apr 11, 2026

• maui-labs

  Public

  dotnet/maui-labs’s past year of commit activity
  Experimental and pre-release tools for .NET MAUI

  androidmicrosoftios+ 10

  androidmicrosoftiosmulti-platformmobileaidotnetmcpdesktopuser-interface+ 3

  C#

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  MIT License

  •88 forks•6464 stars•1111 issues•1616 pull requests•Updated Apr 11, 2026Apr 11, 2026

• iot

  Public

  dotnet/iot’s past year of commit activity
  This repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.

  C#

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  MIT License

  •621621 forks•2.4k2.4k stars•8282 issues•1414 pull requests•Updated Apr 11, 2026Apr 11, 2026

• macios

  Public

  dotnet/macios’s past year of commit activity
  .NET for iOS, Mac Catalyst, macOS, and tvOS provide open-source bindings of the Apple SDKs for use with .NET managed languages such as C#

  macosiosxamarin+ 4

  macosiosxamarincsharpdotnettvoswatchos

  C#

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  Other

  •561561 forks•2.8k2.8k stars•445445 issues•5050 pull requests•Updated Apr 11, 2026Apr 11, 2026

• arcade

  Public

  dotnet/arcade’s past year of commit activity
  Tools that provide common build infrastructure for multiple .NET Foundation projects.

  C#

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  MIT License

  •384384 forks•718718 stars•418418 issues•4040 pull requests•Updated Apr 11, 2026Apr 11, 2026

• dotnet-api-docs

  Public

  dotnet/dotnet-api-docs’s past year of commit activity
  .NET API reference documentation (.NET 5+, .NET Core, .NET Framework)

  hacktoberfest

  hacktoberfest

  C#

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  Other

  •1.7k1.7k forks•904904 stars•1.5k1.5k issues•9595 pull requests•Updated Apr 11, 2026Apr 11, 2026

• arcade-validation

  Public
  Testing and validation scenarios for https://github.com/dotnet/arcade

  PowerShell

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  MIT License

  •3535 forks•1919 stars•00 issues•11 pull request•Updated Apr 11, 2026Apr 11, 2026

• msbuild

  Public

  dotnet/msbuild’s past year of commit activity
  The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

  microsoftvisual-studiobuild+ 3

  microsoftvisual-studiobuildmsbuildhelp-wantedhacktoberfest

  C#

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  MIT License

  •1.4k1.4k forks•5.5k5.5k stars•1.4k1.4k issues•9696 pull requests•Updated Apr 11, 2026Apr 11, 2026

• skills

  Public

  dotnet/skills’s past year of commit activity
  Repository for skills to assist AI coding agents with .NET and C#

  agent-skills

  agent-skills

  C#

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  MIT License

  •8080 forks•1k1k stars•4141 issues•3636 pull requests•Updated Apr 11, 2026Apr 11, 2026

• EntityFramework.Docs

  Public

  dotnet/EntityFramework.Docs’s past year of commit activity
  Documentation for Entity Framework Core and Entity Framework 6

  documentationormentity-framework+ 2

  documentationormentity-frameworkentity-framework-coreentity-framework-6

  Mermaid

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  Creative Commons Attribution 4.0 International

  •2k2k forks•1.7k1.7k stars•558558 issues•11 pull request•Updated Apr 11, 2026Apr 11, 2026

• diagnostics

  Public

  dotnet/diagnostics’s past year of commit activity
  This repository contains the source code for various .NET Core runtime diagnostic tools and documents.

  C++

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  MIT License

  •391391 forks•1.3k1.3k stars•255255 issues•2727 pull requests•Updated Apr 11, 2026Apr 11, 2026

• Nerdbank.Streams

  Public

  dotnet/Nerdbank.Streams’s past year of commit activity
  Specialized .NET Streams and pipes for full duplex in-proc communication, web sockets, and multiplexing

  C#

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  MIT License

  •6969 forks•707707 stars•44 issues•1414 pull requests•Updated Apr 11, 2026Apr 11, 2026

• extensions

  Public

  dotnet/extensions’s past year of commit activity
  This repository contains a suite of libraries that provide facilities commonly needed when creating production-ready applications.

  dotnet

  dotnet

  C#

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  MIT License

  •862862 forks•3.1k3.1k stars•206206 issues•2020 pull requests•Updated Apr 11, 2026Apr 11, 2026

• roslyn

  Public

  dotnet/roslyn’s past year of commit activity
  The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

  visual-studiocsharproslyn+ 2

  visual-studiocsharproslynvisual-basichacktoberfest

  C#

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  MIT License

  •4.2k4.2k forks•20k20k stars•5.5k5.5k issues•629629 pull requests•Updated Apr 11, 2026Apr 11, 2026

• nbgv

  Public

  dotnet/nbgv’s past year of commit activity
  The repo behind the dotnet/nbgv GitHub Action

  TypeScript

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  MIT License

  •88 forks•5959 stars•22 issues•88 pull requests•Updated Apr 11, 2026Apr 11, 2026

• winforms

  Public

  dotnet/winforms’s past year of commit activity
  Windows Forms is a .NET UI framework for building Windows desktop applications.

  winformsdesktophelp-wanted+ 2

  winformsdesktophelp-wantedwindows-formshacktoberfest

  C#

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  MIT License

  •1.1k1.1k forks•4.8k4.8k stars•717717 issues•8989 pull requests•Updated Apr 11, 2026Apr 11, 2026

• razor

  Public

  dotnet/razor’s past year of commit activity
  Compiler and tooling experience for Razor ASP.NET Core apps in Visual Studio and VS Code.

  aspnethacktoberfest

  aspnethacktoberfest

  C#

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  MIT License

  •238238 forks•709709 stars•675675 issues•3838 pull requests•Updated Apr 11, 2026Apr 11, 2026

• windowsdesktop

  Public

  dotnet/windowsdesktop’s past year of commit activity
  PowerShell

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  MIT License

  •6464 forks•208208 stars•1414 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• wpf

  Public

  dotnet/wpf’s past year of commit activity
  WPF is a .NET Core UI framework for building Windows desktop applications.

  dotnetwpfhelp-wanted

  dotnetwpfhelp-wanted

  C#

  •

  MIT License

  •1.3k1.3k forks•7.6k7.6k stars•1.4k1.4k issues•215215 pull requests•Updated Apr 11, 2026Apr 11, 2026

• sourcelink

  Public
  Source Link enables a great source debugging experience for your users, by adding source control metadata to your built assets

  C#

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  MIT License

  •136136 forks•1.3k1.3k stars•133133 issues•1212 pull requests•Updated Apr 11, 2026Apr 11, 2026

• emsdk

  Public

  dotnet/emsdk’s past year of commit activity
  Emscripten SDK

  PowerShell

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  Other

  •805805 forks•1717 stars•00 issues•44 pull requests•Updated Apr 11, 2026Apr 11, 2026

• templating

  Public

  dotnet/templating’s past year of commit activity
  This repo contains the Template Engine which is used by dotnet new

  dotnetdotnet-template

  dotnetdotnet-template

  C#

  •

  MIT License

  •394394 forks•1.7k1.7k stars•210210 issues•1313 pull requests•Updated Apr 11, 2026Apr 11, 2026

• maui

  Public

  dotnet/maui’s past year of commit activity
  .NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

  androidmicrosoftios+ 10

  androidmicrosoftiosmulti-platformmobiledotnetdesktopuser-interfacehacktoberfestmaui+ 3

  C#

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  MIT License

  •1.9k1.9k forks•23k23k stars•3.7k3.7k issues•314314 pull requests•Updated Apr 11, 2026Apr 11, 2026