Repositories list

• arcade

  Public
  Tools that provide common build infrastructure for multiple .NET Foundation projects.

  C#

  •

  MIT License

  •397397 forks•729729 stars•347347 issues•4646 pull requests•Updated Sep 9, 2026Sep 9, 2026

• macios

  Public
  .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#

  •

  Other

  •576576 forks•2.9k2.9k stars•410410 issues•2626 pull requests•Updated Sep 9, 2026Sep 9, 2026

• runtime

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

  dotnethelp-wantedhacktoberfest

  dotnethelp-wantedhacktoberfest

  C#

  •

  MIT License

  •5.6k5.6k forks•18k18k stars•7.2k7.2k issues•592592 pull requests•Updated Sep 9, 2026Sep 9, 2026

• maui

  Public
  .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#

  •

  MIT License

  •2k2k forks•23k23k stars•3.8k3.8k issues•5959 pull requests•Updated Sep 9, 2026Sep 9, 2026

• source-build-assets

  Public
  IL Assembly

  •

  MIT License

  •7474 forks•5353 stars•77 issues•11 pull request•Updated Sep 9, 2026Sep 9, 2026

• sdk

  Public
  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•3.2k3.2k stars•2.3k2.3k issues•193193 pull requests•Updated Sep 9, 2026Sep 9, 2026

• templating

  Public
  This repo contains the Template Engine which is used by dotnet new

  dotnetdotnet-template

  dotnetdotnet-template

  399399 forks•1.7k1.7k stars•8383 issues•1212 pull requests•Updated Sep 9, 2026Sep 9, 2026

• dotnet-monitor

  Public
  This repository contains the source code for .NET Monitor - a tool that allows you to gather diagnostic data from running applications using HTTP endpoints

  C#

  •

  MIT License

  •128128 forks•721721 stars•128128 issues•44 pull requests•Updated Sep 9, 2026Sep 9, 2026

• scenario-tests

  Public
  Scenario testing for installed .NET Core SDKs

  Shell

  •

  MIT License

  •2626 forks•77 stars•1212 issues•22 pull requests•Updated Sep 9, 2026Sep 9, 2026

• windowsdesktop

  Public
  Shell

  •

  MIT License

  •7070 forks•211211 stars•1212 issues•11 pull request•Updated Sep 9, 2026Sep 9, 2026

• winforms

  Public
  Windows Forms is a .NET UI framework for building Windows desktop applications.

  winformsdesktophelp-wanted+ 2

  winformsdesktophelp-wantedwindows-formshacktoberfest

  C#

  •

  MIT License

  •1.1k1.1k forks•4.9k4.9k stars•780780 issues•9898 pull requests•Updated Sep 9, 2026Sep 9, 2026

• emsdk

  Public
  Emscripten SDK

  Shell

  •

  Other

  •820820 forks•2020 stars•00 issues•88 pull requests•Updated Sep 9, 2026Sep 9, 2026

• wpf

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

  dotnetwpfhelp-wanted

  dotnetwpfhelp-wanted

  C#

  •

  MIT License

  •1.3k1.3k forks•7.7k7.7k stars•1.4k1.4k issues•233233 pull requests•Updated Sep 9, 2026Sep 9, 2026

• fsharp

  Public
  The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

  visual-studiotoolscompiler+ 5

  visual-studiotoolscompilerfsharpfunctional-programmingdotnetnetcoreintellisense

  F#

  •

  MIT License

  •872872 forks•4.3k4.3k stars•1.1k1.1k issues•152152 pull requests•Updated Sep 9, 2026Sep 9, 2026

• installer

  Public
  .NET SDK Installer

  437437 forks•1.3k1.3k stars•2626 issues•33 pull requests•Updated Sep 9, 2026Sep 9, 2026

• versions

  Public
  This repo contains information about the various component versions that ship with .NET Core.

  MIT License

  •159159 forks•153153 stars•00 issues•00 pull requests•Updated Sep 9, 2026Sep 9, 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#

  •

  MIT License

  •4.3k4.3k forks•21k21k stars•5.6k5.6k issues•741741 pull requests•Updated Sep 9, 2026Sep 9, 2026

• skills

  Public
  Repository for skills to assist AI coding agents with .NET and C#

  agent-skills

  agent-skills

  C#

  •

  MIT License

  •414414 forks•5.4k5.4k stars•7878 issues•1111 pull requests•Updated Sep 9, 2026Sep 9, 2026

• NuGet.BuildTasks

  Public
  The build tasks used to pick up package content from project.lock.json.

  PowerShell

  •

  MIT License

  •6565 forks•4747 stars•1919 issues•22 pull requests•Updated Sep 9, 2026Sep 9, 2026

• install-scripts

  Public
  PowerShell

  •

  MIT License

  •120120 forks•212212 stars•1515 issues•55 pull requests•Updated Sep 9, 2026Sep 9, 2026

• wcf

  Public
  This repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.

  wcfwcf-client

  wcfwcf-client

  C#

  •

  MIT License

  •576576 forks•1.8k1.8k stars•321321 issues•3838 pull requests•Updated Sep 9, 2026Sep 9, 2026

• Scaffolding

  Public
  Code generators to speed up development.

  C#

  •

  MIT License

  •257257 forks•817817 stars•189189 issues•1414 pull requests•Updated Sep 9, 2026Sep 9, 2026

• efcore

  Public
  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#

  •

  MIT License

  •3.4k3.4k forks•15k15k stars•2.3k2.3k issues•5555 pull requests•Updated Sep 9, 2026Sep 9, 2026

• docs

  Public
  This repository contains .NET Documentation.

  csharpfsharpvisual-basic+ 3

  csharpfsharpvisual-basicdotnetdotnet-corehacktoberfest

  Creative Commons Attribution 4.0 International

  •6.1k6.1k forks•4.8k4.8k stars•867867 issues•6161 pull requests•Updated Sep 9, 2026Sep 9, 2026

• dotnet

  Public
  Home of .NET's Virtual Monolithic Repository which includes all the code needed to build the .NET SDK.

  dotnetmonorepo

  dotnetmonorepo

  C#

  •

  MIT License

  •337337 forks•1.3k1.3k stars•139139 issues•2626 pull requests•Updated Sep 9, 2026Sep 9, 2026

• Nerdbank.Streams

  Public
  Specialized .NET Streams and pipes for full duplex in-proc communication, web sockets, and multiplexing

  C#

  •

  MIT License

  •7575 forks•717717 stars•11 issue•33 pull requests•Updated Sep 9, 2026Sep 9, 2026

• AspNetApiDocs

  Public
  Reference documentation for ASP.NET Core APIs

  Creative Commons Attribution 4.0 International

  •114114 forks•132132 stars•00 issues•22 pull requests•Updated Sep 9, 2026Sep 9, 2026

• workload-versions

  Public
  Shell

  •

  MIT License

  •2222 forks•1414 stars•1111 issues•1111 pull requests•Updated Sep 9, 2026Sep 9, 2026

• dotnet-docker

  Public
  Official container images for .NET

  Dockerfile

  •

  MIT License

  •2k2k forks•4.9k4.9k stars•121121 issues•1111 pull requests•Updated Sep 9, 2026Sep 9, 2026

• android-api-docs

  Public
  .NET for Android reference documentation.

  C#

  •

  Creative Commons Attribution 4.0 International

  •1212 forks•33 stars•193193 issues•11 pull request•Updated Sep 9, 2026Sep 9, 2026