Offline Map Viewer with HUMUNGOUS map database

I am seeking a simple map viewer like gmapcatcher (no coding or programming) which will run off a pre downloaded map database of an entire continent or the entire planet.

then you might find some information at with a search for “offline”

or directly in the OSM wiki about … perhabs a bit outdated there.

But if you intend to pre-download really much tile graphics from the main OSM tile server, pay attention to