Toaster 3D is an add-on that displays a brief popup notification, or "toast," every time a new Blender session is started. The notification features a custom animation and includes optional sound effects, such as a toaster pop. It fetches text from a regularly updated public JSON library, displaying varying content like motivational quotes, Blender workflow tips, movie facts, add-on recommendations, and occasional reminders to support the Blender Development Fund.

The add-on's appearance is customizable, allowing users to adjust text color, font size, and stroke thickness to match their current Blender UI theme. Users also have the option to submit their own quotes for inclusion in the public database via an external link provided in the interface.