What tools people are using for creating class diagrams?

Hi,

I'm looking for the best tool to create a class diagrams that will stub out classes / methods based on the design. Alternatively I would settle for a tool that can scan some assemblies and produce an up to date class diagram.

The application we are building a .NET / C# project so of course I took a look back at the Visual Studio Class Diagram tools as I've the tools for some time.

Unfortunately there are limitations, such as only being able to show classes that are in the current project. For example, we will have a shared/core project that will contain numerous base classes, and these will be in their own project / DLL which is referenced elsewhere. The CD tool within VS 2015 can't build a diagram that spans numerous projects.

The other limitation is that the .cd file format and tools do not work with the newer .NET Core libraries.

Is there a tool out there that others are using that will allow generation or initial creation of a Class Diagram across projects to allow us to show classes from shared libraries?