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Top repositories

1

aspnetcore

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
C#
32,968
star
2

maui

.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
C#
20,148
star
3

core

Home repository for .NET Core
PowerShell
19,308
star
4

roslyn

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
C#
17,957
star
5

corefx

This repo is used for servicing PR's for .NET Core 2.1 and 3.1. Please visit us at https://github.com/dotnet/runtime
17,793
star
6

runtime

.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
C#
13,093
star
7

coreclr

CoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.
12,807
star
8

efcore

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
C#
12,774
star
9

AspNetCore.Docs

Documentation for ASP.NET Core
C#
12,032
star
10

csharplang

The official repo for the design of the C# programming language
C#
10,094
star
11

BenchmarkDotNet

Powerful .NET library for benchmarking
C#
9,579
star
12

orleans

Cloud Native application framework for .NET
C#
9,460
star
13

blazor

Blazor moved to https://github.com/dotnet/aspnetcore
PowerShell
9,348
star
14

machinelearning

ML.NET is an open source and cross-platform machine learning framework for .NET.
C#
8,456
star
15

wpf

WPF is a .NET Core UI framework for building Windows desktop applications.
C#
6,346
star
16

reactive

The Reactive Extensions for .NET
C#
6,242
star
17

tye

Tye is a tool that makes developing, testing, and deploying microservices and distributed applications easier. Project Tye includes a local orchestrator to make developing microservices easier and the ability to deploy microservices to Kubernetes with minimal configuration.
C#
5,210
star
18

msbuild

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.
C#
5,039
star
19

machinelearning-samples

Samples for ML.NET, an open source and cross-platform machine learning framework for .NET.
PowerShell
4,061
star
20

dotnet-docker

Docker images for .NET and the .NET Tools.
Dockerfile
4,033
star
21

docs

This repository contains .NET Documentation.
Dockerfile
3,921
star
22

winforms

Windows Forms is a .NET UI framework for building Windows desktop applications.
C#
3,904
star
23

MQTTnet

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/.
C#
3,898
star
24

Open-XML-SDK

Open XML SDK by Microsoft
C#
3,701
star
25

docfx

Static site generator for .NET API documentation.
C#
3,663
star
26

fsharp

The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio
F#
3,583
star
27

cli

The .NET Core command-line (CLI) tools, used for building .NET Core apps and libraries through your development flow (compiling, NuGet package management, running, testing, ...).
3,501
star
28

Silk.NET

The high-speed OpenGL, OpenCL, OpenAL, OpenXR, GLFW, SDL, Vulkan, Assimp, WebGPU, and DirectX bindings library your mother warned you about.
C#
3,109
star
29

command-line-api

Command line parsing, invocation, and rendering of terminal output.
C#
3,095
star
30

standard

This repo is building the .NET Standard
3,086
star
31

corert

This repo contains CoreRT, an experimental .NET Core runtime optimized for AOT (ahead of time compilation) scenarios, with the accompanying compiler toolchain.
C#
2,911
star
32

samples

Sample code referenced by the .NET documentation
C#
2,896
star
33

aspnet-api-versioning

Provides a set of libraries which add service API versioning to ASP.NET Web API, OData with ASP.NET Web API, and ASP.NET Core.
C#
2,804
star
34

vscode-csharp

Official C# support for Visual Studio Code
TypeScript
2,745
star
35

try

Try .NET provides developers and content authors with tools to create interactive experiences.
TypeScript
2,695
star
36

interactive

.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.
C#
2,480
star
37

extensions

This repository contains a suite of libraries that provide facilities commonly needed when creating production-ready applications.
C#
2,361
star
38

sdk

Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI
C#
2,325
star
39

maui-samples

Samples for .NET Multi-Platform App UI (.NET MAUI)
C#
2,219
star
40

Docker.DotNet

🐳 .NET (C#) Client Library for Docker API
C#
2,069
star
41

pinvoke

A library containing all P/Invoke code so you don't have to import it every time. Maintained and updated to support the latest Windows OS.
C#
2,034
star
42

spark

.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.
C#
1,963
star
43

iot

This repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.
C#
1,932
star
44

format

Home for the dotnet-format command
C#
1,736
star
45

wcf

This repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.
C#
1,655
star
46

Comet

Comet is an MVU UIToolkit written in C#
C#
1,595
star
47

llilc

This repo contains LLILC, an LLVM based compiler for .NET Core. It includes a set of cross-platform .NET code generation tools that enables compilation of MSIL byte code to LLVM supported platforms.
C++
1,512
star
48

infer

Infer.NET is a framework for running Bayesian inference in graphical models
C#
1,500
star
49

templating

This repo contains the Template Engine which is used by dotnet new
C#
1,499
star
50

EntityFramework.Docs

Documentation for Entity Framework Core and Entity Framework 6
PowerShell
1,477
star
51

roslyn-analyzers

C#
1,471
star
52

corefxlab

This repo is for experimentation and exploring new ideas that may or may not make it into the main corefx repo.
C#
1,461
star
53

ef6

This is the codebase for Entity Framework 6 (previously maintained at https://entityframework.codeplex.com). Entity Framework Core is maintained at https://github.com/dotnet/efcore.
C#
1,400
star
54

installer

.NET SDK Installer
C#
1,261
star
55

dotNext

Next generation API for .NET
C#
1,251
star
56

codeformatter

Tool that uses Roslyn to automatically rewrite the source to follow our coding styles
C#
1,235
star
57

Nerdbank.GitVersioning

Stamp your assemblies, packages and more with a unique version generated from a single, simple version.json file and include git commit IDs for non-official builds.
C#
1,223
star
58

runtimelab

This repo is for experimentation and exploring new ideas that may or may not make it into the main dotnet/runtime repo.
1,181
star
59

announcements

Subscribe to this repo to be notified of Announcements and changes in .NET Core.
1,179
star
60

ILMerge

ILMerge is a static linker for .NET Assemblies.
C#
1,175
star
61

MobileBlazorBindings

Experimental Mobile Blazor Bindings - Build native and hybrid mobile apps with Blazor
C#
1,160
star
62

sourcelink

Source Link enables a great source debugging experience for your users, by adding source control metadata to your built assets
C#
1,136
star
63

ResXResourceManager

Manage localization of all ResX-Based resources in one central place.
C#
1,132
star
64

try-convert

Helping .NET developers port their projects to .NET Core!
C#
1,114
star
65

diagnostics

This repository contains the source code for various .NET Core runtime diagnostic tools and documents.
C++
1,092
star
66

upgrade-assistant

A tool to assist developers in upgrading .NET Framework applications to .NET 6 and beyond
C#
982
star
67

project-system

The .NET Project System for Visual Studio
C#
924
star
68

try-samples

C#
920
star
69

TorchSharp

A .NET library that provides access to the library that powers PyTorch.
C#
891
star
70

designs

This repo is used for reviewing new .NET designs.
C#
843
star
71

crank

Benchmarking infrastructure for applications
C#
819
star
72

ClangSharp

Clang bindings for .NET written in C#
C#
783
star
73

LLVMSharp

LLVM bindings for .NET Standard written in C# using ClangSharp
C#
774
star
74

SqlClient

Microsoft.Data.SqlClient provides database connectivity to SQL Server for .NET applications.
C#
728
star
75

DataGridExtensions

Modular extensions for the WPF DataGrid control
C#
691
star
76

Microsoft.Maui.Graphics

An experimental cross-platform native graphics library.
C#
657
star
77

HttpRepl

The HTTP Read-Eval-Print Loop (REPL) is a lightweight, cross-platform command-line tool that's supported everywhere .NET Core is supported and is used for making HTTP requests to test ASP.NET Core web APIs and view their results.
C#
651
star
78

csharp-notebooks

Get started learning C# with C# notebooks powered by .NET Interactive and VS Code.
Jupyter Notebook
629
star
79

performance

This repo contains benchmarks used for testing the performance of all .NET Runtimes
F#
620
star
80

arcade

Tools that provide common build infrastructure for multiple .NET Foundation projects.
C#
615
star
81

Microsoft.Maui.Graphics.Controls

Experimental Microsoft.Maui.Graphics.Controls - Build drawn controls (Cupertino, Fluent and Material)
C#
608
star
82

Scaffolding

Code generators to speed up development.
C#
596
star
83

csharpstandard

Working space for ECMA-TC49-TG2, the C# standard committee.
C#
596
star
84

dotnet-console-games

Game examples implemented as .NET console applications primarily for providing education and inspiration. :)
C#
569
star
85

dotnet-api-docs

.NET API reference documentation (.NET 5+, .NET Core, .NET Framework)
C#
558
star
86

dotnet-docker-samples

The .NET Core Docker samples have moved to https://github.com/dotnet/dotnet-docker/tree/master/samples
C#
545
star
87

dotnet-monitor

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#
527
star
88

Nerdbank.Streams

Specialized .NET Streams and pipes for full duplex in-proc communication, web sockets, and multiplexing
C#
514
star
89

intro-to-dotnet-web-dev

Get Started as a Web Developer with .NET, C#, and ASP.NET Core
C#
496
star
90

cli-lab

A guided tool will be provided to enable the controlled clean up of a system such that only the desired versions of the Runtime and SDKs remain.
C#
484
star
91

buildtools

Build tools that are necessary for building the .NET Core projects
479
star
92

roslyn-sdk

Roslyn-SDK templates and Syntax Visualizer
C#
470
star
93

core-setup

Installer packages for the .NET Core runtime and libraries
455
star
94

Kerberos.NET

A Kerberos implementation built entirely in managed code.
C#
432
star
95

WatsonTcp

WatsonTcp is the easiest way to build TCP-based clients and servers in C#.
C#
427
star
96

training-tutorials

Getting started tutorials for C# and ASP.NET
C#
396
star
97

razor

Compiler and tooling experience for Razor ASP.NET Core apps in Visual Studio, Visual Studio for Mac, and VS Code.
C#
390
star
98

linker

C#
380
star
99

sign

Code Signing CLI tool supporting Authenticode, NuGet, VSIX, and ClickOnce
C#
374
star
100

dotnet-template-samples

Samples showing how to create templates using the Template Engine for dotnet new and Visual Studio
C#
315
star