We used to play DnD with a TV screen flat on the table. The DM would show city/battle maps on the TV, and we could walk across them with our miniatures. We like

We used to play DnD with a TV screen flat on the table. The DM would show city/battle maps on the TV, and we could walk across them with our miniatures. We liked to play with a grid, but not all maps had one. So I whipped up a tool just to get a grid on a picture and save it: https://www.gridtool.xyz https://www.gridtool.xyz