Repositories list

• skills

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

  agent-skills

  agent-skills

  C#

  •

  MIT License

  •244244 forks•3.3k3.3k stars•4848 issues•3535 pull requests•Updated Jun 6, 2026Jun 6, 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

  •861861 forks•4.3k4.3k stars•1.1k1.1k issues•113113 pull requests•Updated Jun 6, 2026Jun 6, 2026

• Nerdbank.Streams

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

  C#

  •

  MIT License

  •7070 forks•708708 stars•66 issues•55 pull requests•Updated Jun 6, 2026Jun 6, 2026

• performance

  Public
  This repo contains benchmarks used for testing the performance of all .NET Runtimes

  F#

  •

  MIT License

  •297297 forks•764764 stars•209209 issues•5050 pull requests•Updated Jun 6, 2026Jun 6, 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

  •301301 forks•1.1k1.1k stars•144144 issues•4747 pull requests•Updated Jun 6, 2026Jun 6, 2026

• roslyn

  Public
  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•20k20k stars•5.5k5.5k issues•717717 pull requests•Updated Jun 6, 2026Jun 6, 2026

• aspnetcore

  Public
  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•3.7k3.7k issues•323323 pull requests•Updated Jun 6, 2026Jun 6, 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

  •1.2k1.2k forks•3.1k3.1k stars•2.4k2.4k issues•171171 pull requests•Updated Jun 6, 2026Jun 6, 2026

• sourcelink

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

  C#

  •

  MIT License

  •137137 forks•1.3k1.3k stars•137137 issues•99 pull requests•Updated Jun 6, 2026Jun 6, 2026

• templating

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

  dotnetdotnet-template

  dotnetdotnet-template

  397397 forks•1.7k1.7k stars•8686 issues•77 pull requests•Updated Jun 6, 2026Jun 6, 2026

• android

  Public
  .NET for Android provides open-source bindings of the Android SDK for use with .NET managed languages such as C#

  C#

  •

  MIT License

  •568568 forks•2.1k2.1k stars•325325 issues•4040 pull requests•Updated Jun 6, 2026Jun 6, 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•2.4k2.4k issues•4242 pull requests•Updated Jun 6, 2026Jun 6, 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•4.8k4.8k stars•722722 issues•9393 pull requests•Updated Jun 6, 2026Jun 6, 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

  •1.9k1.9k forks•23k23k stars•3.8k3.8k issues•233233 pull requests•Updated Jun 6, 2026Jun 6, 2026

• runtime

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

  dotnethelp-wantedhacktoberfest

  dotnethelp-wantedhacktoberfest

  C#

  •

  MIT License

  •5.5k5.5k forks•18k18k stars•7.8k7.8k issues•439439 pull requests•Updated Jun 6, 2026Jun 6, 2026

• SqlClient

  Public
  Microsoft.Data.SqlClient provides database connectivity to SQL Server for .NET applications.

  C#

  •

  MIT License

  •329329 forks•975975 stars•229229 issues•5353 pull requests•Updated Jun 6, 2026Jun 6, 2026

• windowsdesktop

  Public
  Shell

  •

  MIT License

  •6767 forks•208208 stars•1313 issues•00 pull requests•Updated Jun 6, 2026Jun 6, 2026

• xdt

  Public
  XDT is Microsoft's Xml Document Transformation library.

  C#

  •

  MIT License

  •3939 forks•6363 stars•33 issues•66 pull requests•Updated Jun 6, 2026Jun 6, 2026

• symreader

  Public
  Managed definitions for COM interfaces exposed by DiaSymReader APIs

  C#

  •

  MIT License

  •4848 forks•5555 stars•66 issues•33 pull requests•Updated Jun 6, 2026Jun 6, 2026

• command-line-api

  Public
  Command line parsing, invocation, and rendering of terminal output.

  parserterminalparsing+ 10

  parserterminalparsingcommand-lineposixdotnet-coredotnet-standardvt100hacktoberfestcompletions+ 3

  C#

  •

  MIT License

  •423423 forks•3.7k3.7k stars•442442 issues•4040 pull requests•Updated Jun 6, 2026Jun 6, 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•217217 pull requests•Updated Jun 6, 2026Jun 6, 2026

• emsdk

  Public
  Emscripten SDK

  Python

  •

  Other

  •807807 forks•1818 stars•00 issues•33 pull requests•Updated Jun 6, 2026Jun 6, 2026

• workload-versions

  Public
  Shell

  •

  MIT License

  •1818 forks•1313 stars•1111 issues•1111 pull requests•Updated Jun 6, 2026Jun 6, 2026

• nbgv

  Public
  The repo behind the dotnet/nbgv GitHub Action

  TypeScript

  •

  MIT License

  •99 forks•5959 stars•11 issue•55 pull requests•Updated Jun 6, 2026Jun 6, 2026

• skills-data

  Public
  MIT License

  •00 forks•11 star•00 issues•00 pull requests•Updated Jun 6, 2026Jun 6, 2026

• razor

  Public
  Compiler and tooling experience for Razor ASP.NET Core apps in Visual Studio and VS Code.

  aspnethacktoberfest

  aspnethacktoberfest

  238238 forks•709709 stars•625625 issues•2929 pull requests•Updated Jun 6, 2026Jun 6, 2026

• core

  Public
  .NET news, announcements, release notes, and more!

  dotnetdotnet-core

  dotnetdotnet-core

  PowerShell

  •

  MIT License

  •4.9k4.9k forks•22k22k stars•338338 issues•1616 pull requests•Updated Jun 6, 2026Jun 6, 2026

• diagnostics

  Public
  This repository contains the source code for various .NET Core runtime diagnostic tools and documents.

  C++

  •

  MIT License

  •398398 forks•1.3k1.3k stars•260260 issues•2626 pull requests•Updated Jun 6, 2026Jun 6, 2026

• deployment-tools

  Public
  This repo contains the code to build the .NET deployment tools and installers for all supported platforms, as well as the sources to .NET deployment tools.

  C#

  •

  MIT License

  •6969 forks•212212 stars•3232 issues•44 pull requests•Updated Jun 6, 2026Jun 6, 2026

• source-build-assets

  Public
  C#

  •

  MIT License

  •7171 forks•5252 stars•1010 issues•44 pull requests•Updated Jun 6, 2026Jun 6, 2026