How can I add mouse-over information to draw.io diagrams?

Is it possible to add information to my shapes in draw.io, which is displayed once I hover over it?

Hi there. Yes, that’s not a problem at all. You can use tooltips in draw.io to add mouse-over information to your shapes. Just go to to the “Edit” option in the menu bar, and select “Edit tooltip”. You can also add a tooltip by selecting the shape and hitting Alt+Shift+T (Option+Shift+T on a Mac).