WiFi Coverage Mapper
Draw your home, mark what the walls are made of, and simulate real WiFi coverage — free, in the browser, nothing uploaded.
Draw your home, pick what the walls are made of, and drop your router in. The simulator runs a multi-wall propagation model in your browser and shows you where the signal actually dies — the bedroom, the garage, the far end of the hallway. No app, no hardware, and your floor plan never leaves this device.
Results are estimates from a physics model, not measurements. They are very good at showing you where coverage collapses and roughly how far a router reaches; they cannot know about your furniture, your neighbours’ networks, or the foil-backed insulation in the attic.