XAML is a declarative markup language designed to simplify the creation of user interfaces in .NET Core applications. It allows developers to define visible UI elements using markup, while enabling a clear separation between the UI design and the application logic through code-behind files. This structure promotes collaboration among developers and designers, facilitating the development process. XAML files, typically saved with a .xaml extension, are XML-based and can be encoded in various formats, with UTF-8 being the most common.

The language supports a wide range of users including small businesses, enterprises, and freelancers, making it versatile for various organizational needs. XAML integrates seamlessly with multiple tools and applications such as .NET MAUI and ReSharper, enhancing its functionality. Additionally, XAML provides comprehensive documentation for training, and offers online support, ensuring users have access to necessary resources and assistance.