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

  •5.7k5.7k forks in dotnet/runtime•18k18k stars in dotnet/runtime•7.5k7.5k issues in dotnet/runtime•620620 pull requests in dotnet/runtime•Updated Oct 19, 2026Oct 19, 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#

  •

  MIT License

  •4040 forks in dotnet/maui-labs•229229 stars in dotnet/maui-labs•8282 issues in dotnet/maui-labs•6464 pull requests in dotnet/maui-labs•Updated Oct 19, 2026Oct 19, 2026

• docs

  Public

  dotnet/docs’s past year of commit activity
  This repository contains .NET Documentation.

  csharpfsharpvisual-basic+ 3

  csharpfsharpvisual-basicdotnetdotnet-corehacktoberfest

  Creative Commons Attribution 4.0 International

  •6.1k6.1k forks in dotnet/docs•4.8k4.8k stars in dotnet/docs•861861 issues in dotnet/docs•7777 pull requests in dotnet/docs•Updated Oct 19, 2026Oct 19, 2026

• SqlClient

  Public

  dotnet/SqlClient’s past year of commit activity
  Microsoft.Data.SqlClient provides database connectivity to SQL Server for .NET applications.

  C#

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  MIT License

  •351351 forks in dotnet/SqlClient•996996 stars in dotnet/SqlClient•252252 issues in dotnet/SqlClient•7878 pull requests in dotnet/SqlClient•Updated Oct 19, 2026Oct 19, 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

  •7777 forks in dotnet/Nerdbank.Streams•723723 stars in dotnet/Nerdbank.Streams•11 issue in dotnet/Nerdbank.Streams•22 pull requests in dotnet/Nerdbank.Streams•Updated Oct 19, 2026Oct 19, 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

  •14k14k forks in dotnet/aspnetcore•38k38k stars in dotnet/aspnetcore•3.9k3.9k issues in dotnet/aspnetcore•428428 pull requests in dotnet/aspnetcore•Updated Oct 19, 2026Oct 19, 2026

• dotnet-docker

  Public

  dotnet/dotnet-docker’s past year of commit activity
  Official container images for .NET

  Dockerfile

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  MIT License

  •2k2k forks in dotnet/dotnet-docker•4.9k4.9k stars in dotnet/dotnet-docker•113113 issues in dotnet/dotnet-docker•77 pull requests in dotnet/dotnet-docker•Updated Oct 19, 2026Oct 19, 2026

• arcade-services

  Public

  dotnet/arcade-services’s past year of commit activity
  Home to .NET's dependency flow system & tooling

  infrastructuredotnetdependencies+ 2

  infrastructuredotnetdependenciesengineering-platformsdepedency-tracking

  C#

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  MIT License

  •8585 forks in dotnet/arcade-services•8686 stars in dotnet/arcade-services•168168 issues in dotnet/arcade-services•1313 pull requests in dotnet/arcade-services•Updated Oct 19, 2026Oct 19, 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

  •4.4k4.4k forks in dotnet/roslyn•21k21k stars in dotnet/roslyn•6k6k issues in dotnet/roslyn•767767 pull requests in dotnet/roslyn•Updated Oct 19, 2026Oct 19, 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

  •400400 forks in dotnet/arcade•731731 stars in dotnet/arcade•353353 issues in dotnet/arcade•6868 pull requests in dotnet/arcade•Updated Oct 19, 2026Oct 19, 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 in dotnet/winforms•4.9k4.9k stars in dotnet/winforms•806806 issues in dotnet/winforms•145145 pull requests in dotnet/winforms•Updated Oct 19, 2026Oct 19, 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

  •347347 forks in dotnet/dotnet•1.3k1.3k stars in dotnet/dotnet•147147 issues in dotnet/dotnet•8888 pull requests in dotnet/dotnet•Updated Oct 19, 2026Oct 19, 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

  •579579 forks in dotnet/macios•2.9k2.9k stars in dotnet/macios•395395 issues in dotnet/macios•5151 pull requests in dotnet/macios•Updated Oct 19, 2026Oct 19, 2026

• emsdk

  Public

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

  Shell

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  Other

  •820820 forks in dotnet/emsdk•2020 stars in dotnet/emsdk•00 issues in dotnet/emsdk•22 pull requests in dotnet/emsdk•Updated Oct 19, 2026Oct 19, 2026

• vscode-csharp

  Public

  dotnet/vscode-csharp’s past year of commit activity
  Official C# support for Visual Studio Code

  c-sharpcsharpdotnet+ 2

  c-sharpcsharpdotnetvscodeomnisharp

  TypeScript

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  MIT License

  •741741 forks in dotnet/vscode-csharp•3.1k3.1k stars in dotnet/vscode-csharp•656656 issues in dotnet/vscode-csharp•3131 pull requests in dotnet/vscode-csharp•Updated Oct 19, 2026Oct 19, 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

  •2k2k forks in dotnet/maui•23k23k stars in dotnet/maui•1.8k1.8k issues in dotnet/maui•6868 pull requests in dotnet/maui•Updated Oct 19, 2026Oct 19, 2026

• sign

  Public

  dotnet/sign’s past year of commit activity
  Code Signing CLI tool supporting Authenticode, NuGet, VSIX, and ClickOnce

  authenticodecode-signing

  authenticodecode-signing

  C#

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  MIT License

  •119119 forks in dotnet/sign•585585 stars in dotnet/sign•6868 issues in dotnet/sign•99 pull requests in dotnet/sign•Updated Oct 19, 2026Oct 19, 2026

• WatsonWebserver

  Public

  dotnet/WatsonWebserver’s past year of commit activity
  Watson is the fastest, easiest way to build scalable RESTful web servers and services in C#.

  httpcloudweb+ 17

  httpcloudwebreststreamserverwatsonnugethttpsrest-api+ 10

  C#

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  MIT License

  •104104 forks in dotnet/WatsonWebserver•506506 stars in dotnet/WatsonWebserver•33 issues in dotnet/WatsonWebserver•00 pull requests in dotnet/WatsonWebserver•Updated Oct 19, 2026Oct 19, 2026

• AspNetCore.Docs.Automation

  Public

  dotnet/AspNetCore.Docs.Automation’s past year of commit activity
  Documentation for ASP.NET Core

  C#

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  Creative Commons Attribution 4.0 International

  •25k25k forks in dotnet/AspNetCore.Docs.Automation•00 stars in dotnet/AspNetCore.Docs.Automation•00 issues in dotnet/AspNetCore.Docs.Automation•22 pull requests in dotnet/AspNetCore.Docs.Automation•Updated Oct 19, 2026Oct 19, 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

  •441441 forks in dotnet/skills•5.7k5.7k stars in dotnet/skills•7171 issues in dotnet/skills•5151 pull requests in dotnet/skills•Updated Oct 19, 2026Oct 19, 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

  •881881 forks in dotnet/fsharp•4.3k4.3k stars in dotnet/fsharp•1.1k1.1k issues in dotnet/fsharp•134134 pull requests in dotnet/fsharp•Updated Oct 19, 2026Oct 19, 2026

• Nerdbank.GitVersioning

  Public

  dotnet/Nerdbank.GitVersioning’s past year of commit activity
  Stamp your assemblies, packages and more with a unique version generated from a single, simple version.json file and include git commit IDs for non-official bui…

  C#

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  MIT License

  •184184 forks in dotnet/Nerdbank.GitVersioning•1.6k1.6k stars in dotnet/Nerdbank.GitVersioning•1111 issues in dotnet/Nerdbank.GitVersioning•33 pull requests in dotnet/Nerdbank.GitVersioning•Updated Oct 19, 2026Oct 19, 2026

• dotnet-buildtools-prereqs-docker

  Public

  dotnet/dotnet-buildtools-prereqs-docker’s past year of commit activity
  Used to maintain the Docker images hosted at the mcr.microsoft.com/dotnet-buildtools/prereqs image repository

  Dockerfile

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  MIT License

  •118118 forks in dotnet/dotnet-buildtools-prereqs-docker•8888 stars in dotnet/dotnet-buildtools-prereqs-docker•3838 issues in dotnet/dotnet-buildtools-prereqs-docker•22 pull requests in dotnet/dotnet-buildtools-prereqs-docker•Updated Oct 19, 2026Oct 19, 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

  •1.3k1.3k forks in dotnet/sdk•3.2k3.2k stars in dotnet/sdk•2.3k2.3k issues in dotnet/sdk•163163 pull requests in dotnet/sdk•Updated Oct 19, 2026Oct 19, 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

  241241 forks in dotnet/razor•708708 stars in dotnet/razor•00 issues in dotnet/razor•00 pull requests in dotnet/razor•Updated Oct 19, 2026Oct 19, 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 in dotnet/efcore•15k15k stars in dotnet/efcore•2.3k2.3k issues in dotnet/efcore•5858 pull requests in dotnet/efcore•Updated Oct 19, 2026Oct 19, 2026

• runtimelab

  Public

  dotnet/runtimelab’s past year of commit activity
  This repo is for experimentation and exploring new ideas that may or may not make it into the main dotnet/runtime repo.

  MIT License

  •227227 forks in dotnet/runtimelab•1.6k1.6k stars in dotnet/runtimelab•247247 issues in dotnet/runtimelab•66 pull requests in dotnet/runtimelab•Updated Oct 19, 2026Oct 19, 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 in dotnet/orleans•11k11k stars in dotnet/orleans•542542 issues in dotnet/orleans•101101 pull requests in dotnet/orleans•Updated Oct 19, 2026Oct 19, 2026

• arcade-skills

  Public

  dotnet/arcade-skills’s past year of commit activity
  Reuseable AI skills, plugins, agents for use in the dotnet product repos, such as dotnet/runtime

  PowerShell

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  MIT License

  •2121 forks in dotnet/arcade-skills•1414 stars in dotnet/arcade-skills•44 issues in dotnet/arcade-skills•22 pull requests in dotnet/arcade-skills•Updated Oct 19, 2026Oct 19, 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

  •579579 forks in dotnet/android•2.1k2.1k stars in dotnet/android•275275 issues in dotnet/android•4545 pull requests in dotnet/android•Updated Oct 19, 2026Oct 19, 2026