.NET documentation

Learn to use .NET to create applications on any platform using C#, F#, and Visual Basic. Browse API reference, sample code, tutorials, and more.

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Interactive introduction to C#

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Overview

Azure for .NET developers

.NET: Free. Cross platform. Open source.

A developer platform for building all your apps: web, mobile, desktop, gaming, IoT, and more. Supported on Windows, Linux, and macOS.

Open source .NET

• .NET overview
• .NET tutorials
• What's new in .NET 6
• Deploy .NET apps
• .NET Foundation
• .NET developer community
• Library guidance

.NET concepts

• What is .NET?
• .NET fundamentals
• ASP.NET Core
• Entity Framework Core
• .NET implementations
• .NET Framework (Windows) apps
• .NET Q&A
• .NET tech community forums

Develop .NET apps

• .NET SDK overview
• .NET CLI overview
• .NET Standard
• Port from .NET Framework to .NET
• Build cloud-native .NET apps with Orleans
• Containerize .NET apps with Docker
• .NET breaking changes
• Create .NET desktop apps for Windows

.NET architectural guides

• Dapr for .NET developers
• .NET microservices architecture guidance
• Modern web apps with ASP.NET Core and Azure
• Containerized Docker app lifecycle
• Cloud native .NET apps for Azure
• Modernize .NET apps with Azure
• All architecture guides

Programming languages

You can write .NET apps in C#, F#, or Visual Basic.

A modern, object-oriented, and type-safe language

A simple language for succinct, robust, and performant code

An approachable language with readable syntax

Create your application

You can choose web, mobile, desktop, gaming, IoT, and more.

Web

• ASP.NET Core tutorials
• What is ASP.NET Core?
• ASP.NET Core in Visual Studio
• ASP.NET MVC apps in Windows containers
• Blazor: Interactive client-side web UI with .NET
• F# for web development

Mobile

• .NET Multi-platform App UI (.NET MAUI)
• Xamarin.Forms
• Xamarin.iOS
• Xamarin.Android
• Develop Xamarin apps with Azure

Desktop

• Universal Windows apps
• Windows Presentation Foundation (.NET 5+)
• Windows Presentation Foundation (.NET Framework)
• Windows Forms (.NET 5+)
• Windows Forms (.NET Framework)
• .NET Multi-platform App UI (.NET MAUI)
• Xamarin for macOS

Microservices

• Dapr for .NET developers
• Cloud native .NET apps
• Serverless apps with Azure
• Architecture for containerized .NET apps
• Deploy a Worker Service to Azure

Cloud

• Azure for .NET developers
• Migrate on-premises .NET web apps or services
• Azure services for .NET developers
• Azure SDK for .NET
• Deploying Azure Resources with F#

Machine learning and AI

• Build custom AI solutions with ML.NET
• Azure Cognitive Services
• Azure machine learning
• .NET for Apache Spark
• F# for Machine Leaning

Game development

• Game development with Visual Studio
• Learn how to use CRYENGINE to build games with C#
• Build games with C# using the MonoGame library
• Learn how to use Unity to build 2D and 3D games with C#

Internet of things (IoT)

• .NET IoT Libraries
• Get started in 5 minutes
• Blink an LED
• .NET IoT 101 video series

API and language reference

Search the .NET API and language reference documentation.

.NET API reference

API reference documentation for .NET

.NET Framework API reference

API reference documentation for .NET Framework

ASP.NET Core API reference

API reference documentation for ASP.NET Core

ML.NET API reference

API reference documentation for ML.NET

.NET for Apache Spark API reference

API reference documentation for .NET for Apache Spark

C# language reference

C# language reference and specification

F# language reference

F# language reference

Visual Basic language reference

Visual Basic language reference and specification

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