Mipui is a free and open-source collaborative web application for creating, editing and viewing grid-based maps for tabletop or role-playing games. Start creating a map now! No registration is neccessary, and there's nothing to download or install.

A free grid-based map editor for role-playing and tabletop games, with real-time collaboration support.

This tool will allow you to create a new Mipui map from an image of a map. It will attempt to automatically infer the underlying grid, group cells by similary, and assign roles to each group. This process can be tweaked along the way.