Tabletop RPG Map editor 2 - RPG Map II is a “tabletop RPG” oriented map maker, created with the “keep it clean & simple” philosophy in mind.
PyMapper - Drag and drop tile based mapping program.
Mipui - An online grid-based map editor for games, with real-time collaboration.
Fractal Mapper - With Fractal Mapper, creating worlds has never been so easy!
RPG map editor - Simple online map editor.
Tiamat - Tiamat is Web 2.0 Tile Mapper; Ideal for creating miniature scale maps for role playing and miniature games.