Learn to use .NET to create applications on any platform using C#, F#, and Visual Basic. Browse API reference, sample code, tutorials, and more.
.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.
.NET tools and diagnostics
Migrate and upgrade
DevOps and testing
Data access in .NET
Write your app in your favorite language
Create your application
You can choose web, mobile, desktop, gaming, IoT, and more.
Internet of things (IoT)
API and language reference
Search the .NET API and language reference documentation.
API reference documentation for .NET
API reference documentation for .NET Framework
API reference documentation for ASP.NET Core
API reference documentation for ML.NET
API reference documentation for .NET for Apache Spark
C# language reference and specification
F# language reference
Visual Basic language reference and specification
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