Repositories list

• runtime

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

  dotnethelp-wantedhacktoberfest

  C#

  •

  MIT License

  •5.3k•17k•8.2k•317•Updated Jan 13, 2026Jan 13, 2026

• roslyn

  Public
  The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

  visual-studiocsharproslyn+ 2visual-basichacktoberfest

  C#

  •

  MIT License

  •4.2k•20k•5.4k•622•Updated Jan 13, 2026Jan 13, 2026

• AspNetCore.Docs

  Public
  Documentation for ASP.NET Core

  docsaspnetcoreaspnet+ 2aspaspnet-core

  C#

  •

  Creative Commons Attribution 4.0 International

  •25k•13k•616•23•Updated Jan 13, 2026Jan 13, 2026

• aspire

  Public

  dotnet/aspire’s past year of commit activity
  Aspire is the tool for code-first, extensible, observable dev and deploy.

  pythoncloudtypescript+ 2dotnethacktoberfest

  C#

  •

  MIT License

  •772•5.3k•1.5k•171•Updated Jan 13, 2026Jan 13, 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

  C#

  •

  MIT License

  •230•897•130•33•Updated Jan 13, 2026Jan 13, 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+ 1dotnet

  C#

  •

  MIT License

  •1.2k•3k•2.6k•158•Updated Jan 13, 2026Jan 13, 2026

• yarp

  Public

  dotnet/yarp’s past year of commit activity
  A toolkit for developing high-performance HTTP reverse proxy applications.

  C#

  •

  MIT License

  •907•9.4k•174•4•Updated Jan 13, 2026Jan 13, 2026

• vscode-csharp

  Public

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

  c-sharpcsharpdotnet+ 2vscodeomnisharp

  TypeScript

  •

  MIT License

  •736•3k•656•17•Updated Jan 13, 2026Jan 13, 2026

• core

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

  dotnetdotnet-core

  PowerShell

  •

  MIT License

  •5k•22k•327•1•Updated Jan 13, 2026Jan 13, 2026

• performance

  Public

  dotnet/performance’s past year of commit activity
  This repo contains benchmarks used for testing the performance of all .NET Runtimes

  F#

  •

  MIT License

  •286•754•203•67•Updated Jan 13, 2026Jan 13, 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+ 1hacktoberfest

  C#

  •

  MIT License

  •11k•38k•3.5k•189•Updated Jan 13, 2026Jan 13, 2026

• Scaffolding

  Public

  dotnet/Scaffolding’s past year of commit activity
  Code generators to speed up development.

  C#

  •

  MIT License

  •239•799•182•17•Updated Jan 13, 2026Jan 13, 2026

• docs

  Public

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

  csharpfsharpvisual-basic+ 3dotnetdotnet-corehacktoberfest

  Creative Commons Attribution 4.0 International

  •6.1k•4.6k•1.1k•61•Updated Jan 13, 2026Jan 13, 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+ 10multi-platformmobiledotnetdesktopuser-interfacehacktoberfestmaui+ 3

  C#

  •

  MIT License

  •1.9k•23k•3.8k•597•Updated Jan 13, 2026Jan 13, 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++

  •

  MIT License

  •387•1.3k•297•24•Updated Jan 12, 2026Jan 12, 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

  •564•2.1k•359•29•Updated Jan 12, 2026Jan 12, 2026

• SqlClient

  Public

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

  C#

  •

  MIT License

  •319•957•242•32•Updated Jan 12, 2026Jan 12, 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

  C#

  •

  Other

  •1.7k•884•1.5k•91•Updated Jan 12, 2026Jan 12, 2026

• csharplang

  Public
  The official repo for the design of the C# programming language

  csharplanguage-design

  C#

  •1.1k•12k•236•36•Updated Jan 12, 2026Jan 12, 2026

• razor

  Public

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

  aspnethacktoberfest

  C#

  •

  MIT License

  •232•704•688•23•Updated Jan 12, 2026Jan 12, 2026

• source-indexer

  Public

  dotnet/source-indexer’s past year of commit activity
  This repo contains the code for building http://source.dot.net

  C#

  •

  MIT License

  •39•52•16•1•Updated Jan 12, 2026Jan 12, 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

  C#

  •

  MIT License

  •849•3.1k•219•33•Updated Jan 12, 2026Jan 12, 2026

• designs

  Public

  dotnet/designs’s past year of commit activity
  This repo is used for reviewing new .NET designs.

  C#

  •

  Other

  •167•931•0•22•Updated Jan 12, 2026Jan 12, 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+ 6entity-frameworkdotnet-coredotnet-standardhacktoberfestdotnet-frameworkaspnet-product

  C#

  •

  MIT License

  •3.4k•15k•2.4k•45•Updated Jan 12, 2026Jan 12, 2026

• dotnet-monitor

  Public

  dotnet/dotnet-monitor’s past year of commit activity
  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

  •120•699•123•15•Updated Jan 12, 2026Jan 12, 2026

• dotnet-docker

  Public

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

  Dockerfile

  •

  MIT License

  •2k•4.8k•113•9•Updated Jan 12, 2026Jan 12, 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+ 3msbuildhelp-wantedhacktoberfest

  C#

  •

  MIT License

  •1.4k•5.5k•1.4k•72•Updated Jan 12, 2026Jan 12, 2026

• arcade-services

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

  infrastructuredotnetdependencies+ 2engineering-platformsdepedency-tracking

  C#

  •

  MIT License

  •78•77•182•8•Updated Jan 12, 2026Jan 12, 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+ 5fsharpfunctional-programmingdotnetnetcoreintellisense

  F#

  •

  MIT License

  •842•4.2k•1.3k•82•Updated Jan 12, 2026Jan 12, 2026

• docker-tools

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

  C#

  •

  MIT License

  •60•172•98•12•Updated Jan 12, 2026Jan 12, 2026