Source: One Page Dungeon by watabou
One Page Dungeon is exactly what the title says, it creates a dungeon map all on one page. The dungeon is created with a random name, subtitle, and various objects placed in the rooms.
This tool could be used as a starting point for stories. For example, in picture above, I could write a story about the Jade Queen and her dungeon. The map could also be used by students to create role playing games.
The tool is free to use and does not require any accounts. To create a dungeon, click on the picture at the top of the page and then press the Enter key. Press E to export the map as a graphic file in .png format.