.NET is an open-source development platform created by Microsoft. It allows developers to build web and mobile applications, robust systems, cloud-based solutions, and cross-platform applications.
With a variety of languages (C#, F#, Visual Basic), cross-platform implementations (.NET Core, .NET Framework, Xamarin/Mono), and libraries, .NET is a very versatile option.
Supported by the active community of .NET developers, you can rest assure that you will always find answers to your questions. According to Microsoft, 60,000 developers and 3,700 companies are already contributing to the .NET platform.