Private by design
The file is read locally by this page. It is not sent to a server, stored, or added to a gallery.
Choose a map file, tune the overlay, then export a ready-to-use image or a transparent grid layer for your editor.
The SVG is a separate overlay sized to your map. Place it above the image in an editor that supports layers.
Drop in a map to start.
The grid is drawn over a local preview. Your original file stays untouched.
Choose a map image to begin.
The file is read locally by this page. It is not sent to a server, stored, or added to a gallery.
Cell size is measured in image pixels. Match it to your map's scale before printing or importing it into a game.