.NET documentation
Learn to use .NET to create applications on any platform using C#, Visual Basic, and F#. Browse API reference, sample code, tutorials, and more.
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C# introduction. A quick interactive start.
Tutorial
Create your first console app.
What's new
What's new in .NET docs
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
Learn about .NET Core
.NET concepts
Learn the fundamental concepts of .NET
Develop .NET apps
Start developing with .NET
.NET architectural guides
Read foundational development and architectural guidance for .NET
Programming languages
You can write .NET apps in C#, F#, or Visual Basic.
Create your application
You can choose web, mobile, desktop, gaming, IoT, and more.
Machine learning and AI
Internet of things (IoT)
API and language reference
Search the .NET API and language reference documentation.
.NET Core API reference
API reference documentation for .NET Core
.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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