ASP.NET is a complete framework that offers many features and tools for building web applications, such as server controls, data access, security, and caching. It supports different programming languages like C#, Visual Basic, and F#.
MVC, on the other hand, is a design pattern that separates an application into three components: Model, View, and Controller. The Model represents the data and business logic, the View is the user interface, and the Controller handles user input and manages the flow of data between the Model and the View.