.NET is a free, cross-platform, open source developer platform for building many different types of applications.
With .NET, you can use multiple languages, editors, and libraries to build for web, mobile, desktop, games, IoT, and more.
Whether you’re working in C#, F#, or Visual Basic, your code will run natively on any compatible operating system. You can build many types of apps with .NET. Some are cross-platform, and some target a specific set of operating systems and devices.