Repositories list

• 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#

  •

  MIT License

  •378378 forks•5.1k5.1k stars•6363 issues•1717 pull requests•Updated Aug 10, 2026Aug 10, 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

  •870870 forks•4.3k4.3k stars•1.2k1.2k issues•110110 pull requests•Updated Aug 10, 2026Aug 10, 2026

• 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

  •5.5k5.5k forks•18k18k stars•7.1k7.1k issues•505505 pull requests•Updated Aug 10, 2026Aug 10, 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•3.7k3.7k issues•346346 pull requests•Updated Aug 10, 2026Aug 10, 2026

• arcade-services

  Public
  Home to .NET's dependency flow system & tooling

  infrastructuredotnetdependencies+ 2

  infrastructuredotnetdependenciesengineering-platformsdepedency-tracking

  C#

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  MIT License

  •8686 forks•8585 stars•154154 issues•66 pull requests•Updated Aug 10, 2026Aug 10, 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

  •334334 forks•1.2k1.2k stars•144144 issues•4646 pull requests•Updated Aug 10, 2026Aug 10, 2026

• AspNetCore.Docs

  Public
  Documentation for ASP.NET Core

  docsaspnetcoreaspnet+ 2

  docsaspnetcoreaspnetaspaspnet-core

  C#

  •

  Creative Commons Attribution 4.0 International

  •25k25k forks•13k13k stars•549549 issues•1717 pull requests•Updated Aug 10, 2026Aug 10, 2026

• docs-maui

  Public

  dotnet/docs-maui’s past year of commit activity
  This repository contains documentation for .NET Multi-platform App UI (MAUI).

  csharpdotnet

  csharpdotnet

  Creative Commons Attribution 4.0 International

  •260260 forks•279279 stars•161161 issues•1717 pull requests•Updated Aug 10, 2026Aug 10, 2026

• msbuild

  Public
  The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

  microsoftvisual-studiobuild+ 3

  microsoftvisual-studiobuildmsbuildhelp-wantedhacktoberfest

  C#

  •

  MIT License

  •1.4k1.4k forks•5.5k5.5k stars•1.5k1.5k issues•109109 pull requests•Updated Aug 10, 2026Aug 10, 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•3.2k3.2k stars•2.3k2.3k issues•159159 pull requests•Updated Aug 10, 2026Aug 10, 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•21k21k stars•5.6k5.6k issues•720720 pull requests•Updated Aug 10, 2026Aug 10, 2026

• docker-tools

  Public
  This is a repo to house some common tools for our various docker repos.

  C#

  •

  MIT License

  •6767 forks•180180 stars•101101 issues•1313 pull requests•Updated Aug 10, 2026Aug 10, 2026

• wpf

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

  dotnetwpfhelp-wanted

  dotnetwpfhelp-wanted

  C#

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  MIT License

  •1.3k1.3k forks•7.7k7.7k stars•1.4k1.4k issues•223223 pull requests•Updated Aug 10, 2026Aug 10, 2026

• performance

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

  F#

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  MIT License

  •299299 forks•771771 stars•209209 issues•5252 pull requests•Updated Aug 10, 2026Aug 10, 2026

• skills-data

  Public
  MIT License

  •33 forks•11 star•11 issue•11 pull request•Updated Aug 10, 2026Aug 10, 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•3939 pull requests•Updated Aug 10, 2026Aug 10, 2026

• dev-proxy

  Public
  Simulate API failures, throttling, and chaos — all from your command line.

  httpdevelopmentrest+ 12

  httpdevelopmentrestproxymock-serverdevtoolsopenapideveloper-toolsapi-testinghacktoberfest+ 5

  C#

  •

  MIT License

  •8888 forks•817817 stars•3333 issues•1010 pull requests•Updated Aug 10, 2026Aug 10, 2026

• cecil

  Public

  dotnet/cecil’s past year of commit activity
  Cecil is a library to inspect, modify and create .NET programs and libraries.

  C#

  •

  MIT License

  •651651 forks•7070 stars•00 issues•33 pull requests•Updated Aug 10, 2026Aug 10, 2026

• runtimelab

  Public
  This repo is for experimentation and exploring new ideas that may or may not make it into the main dotnet/runtime repo.

  MIT License

  •224224 forks•1.6k1.6k stars•252252 issues•44 pull requests•Updated Aug 10, 2026Aug 10, 2026

• maintenance-packages

  Public
  Repository that hosts packages from the .NET platform whose original home/branch is not building any longer.

  C#

  •

  MIT License

  •2222 forks•4444 stars•1616 issues•33 pull requests•Updated Aug 10, 2026Aug 10, 2026

• roslyn-analyzers

  Public
  hacktoberfest

  hacktoberfest

  480480 forks•1.7k1.7k stars•1.1k1.1k issues•1010 pull requests•Updated Aug 10, 2026Aug 10, 2026

• binaryen

  Public
  Optimizer and compiler/toolchain library for WebAssembly

  C++

  •

  Apache License 2.0

  •873873 forks•33 stars•00 issues•99 pull requests•Updated Aug 10, 2026Aug 10, 2026

• razor

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

  aspnethacktoberfest

  aspnethacktoberfest

  241241 forks•710710 stars•375375 issues•2828 pull requests•Updated Aug 10, 2026Aug 10, 2026

• yarp

  Public
  A toolkit for developing high-performance HTTP reverse proxy applications.

  C#

  •

  MIT License

  •929929 forks•9.6k9.6k stars•182182 issues•99 pull requests•Updated Aug 10, 2026Aug 10, 2026

• android

  Public
  .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

  •577577 forks•2.1k2.1k stars•362362 issues•4141 pull requests•Updated Aug 10, 2026Aug 10, 2026

• format

  Public
  Home for the dotnet-format command

  174174 forks•1.9k1.9k stars•192192 issues•33 pull requests•Updated Aug 10, 2026Aug 10, 2026

• llvm-project

  Public
  Mono's patches for the LLVM repository: https://www.mono-project.com/docs/advanced/runtime/docs/llvm-backend/#the-llvm-mono-branch

  C++

  •

  Other

  •18k18k forks•3131 stars•00 issues•99 pull requests•Updated Aug 10, 2026Aug 10, 2026

• machinelearning

  Public
  ML.NET is an open source and cross-platform machine learning framework for .NET.

  machine-learningalgorithmsdotnet+ 1

  machine-learningalgorithmsdotnetml

  C#

  •

  MIT License

  •1.9k1.9k forks•9.3k9.3k stars•986986 issues•2020 pull requests•Updated Aug 10, 2026Aug 10, 2026

• sign

  Public
  Code Signing CLI tool supporting Authenticode, NuGet, VSIX, and ClickOnce

  authenticodecode-signing

  authenticodecode-signing

  C#

  •

  MIT License

  •114114 forks•580580 stars•7070 issues•1313 pull requests•Updated Aug 10, 2026Aug 10, 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•4k4k issues•7979 pull requests•Updated Aug 10, 2026Aug 10, 2026