Oleg Dolya has built a one page dungeon maker that procedurally generates beautifully rendered classic-style maps of dungeons, complete with titles and notes. These are perfect for Dungeons & Dragons and other tabletop RPGs, and would be especially useful for DMs to use for impromptu sessions.
One Page Dungeon can be accessed online and the resulting maps are free to use for personal and commercial projects.
You can use images created by the generator as you like: copy, modify, include in your commercial rpg adventures etc. Attribution is appreciated, but not required.One Page Dungeon by watabou