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.