Entity Framework is an Object Relational Mapper (ORM) tool from Microsoft that has been an extremely popular from the time it was available. It enables developers to create data-centric applications by programming against a conceptual model rather than the relational model thereby solving the impedance mismatch between the way data is represented in the application and how it is actually stored in the database. While Entity Framework runs on .NET Framework, Entity Framework Core can run on .NET Core environment.
While Entity Framework runs on .NET Framework, Entity Framework Core can run on .NET Core environment.