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

  C#

  •

  MIT License

  •5.3k•17k•8.1k•347•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •782•5.4k•1.4k•83•Updated Jan 26, 2026Jan 26, 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+ 2windows-formshacktoberfest

  C#

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  MIT License

  •1.1k•4.7k•704•64•Updated Jan 26, 2026Jan 26, 2026

• nbgv

  Public

  dotnet/nbgv’s past year of commit activity
  The repo behind the dotnet/nbgv GitHub Action

  TypeScript

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  MIT License

  •9•57•2•12•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •1.9k•23k•3.8k•598•Updated Jan 26, 2026Jan 26, 2026

• templating

  Public

  dotnet/templating’s past year of commit activity
  This repo contains the Template Engine which is used by dotnet new

  dotnetdotnet-template

  C#

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  MIT License

  •393•1.7k•206•11•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •120•702•123•8•Updated Jan 26, 2026Jan 26, 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

  •237•916•127•43•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •1.2k•3k•2.7k•180•Updated Jan 26, 2026Jan 26, 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+ 4csharpdotnettvoswatchos

  C#

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  Other

  •554•2.8k•461•33•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •850•3.1k•216•24•Updated Jan 26, 2026Jan 26, 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#

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  MIT License

  •11k•38k•3.5k•198•Updated Jan 26, 2026Jan 26, 2026

• Silk.NET

  Public

  dotnet/Silk.NET’s past year of commit activity
  The high-speed OpenGL, OpenCL, OpenAL, OpenXR, GLFW, SDL, Vulkan, Assimp, WebGPU, and DirectX bindings library your mother warned you about.

  audioopenglcsharp+ 14nativegraphicsvulkanopenclglfwgame-developmentopenal+ 7

  C#

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  MIT License

  •444•4.9k•74•17•Updated Jan 25, 2026Jan 25, 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#

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  MIT License

  •287•755•205•63•Updated Jan 25, 2026Jan 25, 2026

• csharpstandard

  Public

  dotnet/csharpstandard’s past year of commit activity
  Working space for ECMA-TC49-TG2, the C# standard committee.

  C#

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  Creative Commons Attribution 4.0 International

  •92•793•242•42•Updated Jan 25, 2026Jan 25, 2026

• interactive

  Public

  dotnet/interactive’s past year of commit activity
  .NET Interactive combines the power of .NET with many other languages to create notebooks, REPLs, and embedded coding experiences. Share code, explore data, write, and learn across your apps in ways you couldn't before.

  data-sciencecsharpjupyter+ 7fsharppowershellpolyglotnotebooksinteractive-programmingpolyglot-devdotnet-interactive

  C#

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  MIT License

  •420•3.2k•616•25•Updated Jan 25, 2026Jan 25, 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#

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  MIT License

  •847•4.2k•1.3k•73•Updated Jan 25, 2026Jan 25, 2026

• vscode-csharp

  Public

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

  c-sharpcsharpdotnet+ 2vscodeomnisharp

  TypeScript

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  MIT License

  •739•3k•655•18•Updated Jan 25, 2026Jan 25, 2026

• MQTTnet

  Public

  dotnet/MQTTnet’s past year of commit activity
  MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

  tlsmqttiot+ 16csharptcpcommunicationnugetuwpnetcoreiot-platform+ 9

  C#

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  MIT License

  •1.1k•4.9k•166•15•Updated Jan 25, 2026Jan 25, 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+ 2visual-basichacktoberfest

  C#

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  MIT License

  •4.2k•20k•5.4k•622•Updated Jan 25, 2026Jan 25, 2026

• roslyn-analyzers

  Public

  dotnet/roslyn-analyzers’s past year of commit activity
  hacktoberfest

  479•1.7k•1k•6•Updated Jan 25, 2026Jan 25, 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#

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  MIT License

  •233•704•681•26•Updated Jan 25, 2026Jan 25, 2026

• symreader-converter

  Public

  dotnet/symreader-converter’s past year of commit activity
  Converts between Windows PDB and Portable PDB formats.

  debuggingconverterpdb+ 4crossplatformmanagedwindows-pdbportable-pdb

  C#

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  MIT License

  •39•68•16•4•Updated Jan 25, 2026Jan 25, 2026

• interactive-window

  Public

  dotnet/interactive-window’s past year of commit activity
  Visual Studio Interactive Window

  editorinteractivescripting+ 2visualstudiointeractivewindow

  C#

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  MIT License

  •36•73•17•0•Updated Jan 25, 2026Jan 25, 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•885•1.5k•92•Updated Jan 25, 2026Jan 25, 2026

• csharplang

  Public

  dotnet/csharplang’s past year of commit activity
  The official repo for the design of the C# programming language

  csharplanguage-design

  C#

  •1.1k•12k•235•37•Updated Jan 25, 2026Jan 25, 2026

• BenchmarkDotNet

  Public

  dotnet/BenchmarkDotNet’s past year of commit activity
  Powerful .NET library for benchmarking

  c-sharpbenchmarkingbenchmark+ 4performancecsharpdotnethacktoberfest

  C#

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  MIT License

  •1k•11k•162•37•Updated Jan 25, 2026Jan 25, 2026

• windowsdesktop

  Public

  dotnet/windowsdesktop’s past year of commit activity
  PowerShell

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  MIT License

  •65•207•13•0•Updated Jan 25, 2026Jan 25, 2026

• extensions-samples

  Public

  dotnet/extensions-samples’s past year of commit activity
  PowerShell

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  MIT License

  •8•13•1•2•Updated Jan 25, 2026Jan 25, 2026

• wpf

  Public

  dotnet/wpf’s past year of commit activity
  WPF is a .NET Core UI framework for building Windows desktop applications.

  dotnetwpfhelp-wanted

  C#

  •

  MIT License

  •1.3k•7.6k•1.4k•196•Updated Jan 25, 2026Jan 25, 2026