Ekahau HeatMapper - The Free Wi-Fi Coverage Mapping Site Survey Tool

 

• Shows Wi-Fi coverage on a map
• Locates all access points
• Detects security settings and finds open networks
• Designed for home and small office
• Free of charge, one-minute install
• Supports 802.11n, as well as a/b/g

Ekahau HeatMapper is a free software tool for quick and easy coverage mapping of Wi-Fi (802.11) networks. It's the only free, easy-to-use tool that shows, on a map, the wireless network coverage in your home or small office. HeatMapper also locates all access points.
HeatMapper also provides a real-time view to all access points and their configurations.
HeatMapper uses your built-in wireless network adapter, therefore, all you need is a Windows-based laptop with wireless. And it takes just one minute to install.
For professional Wi-Fi design, verification and troubleshooting tools, please see Ekahau Site Survey
"HeatMapper brings something to the Wi-Fi utility table that's been missing for a long time. As free utilities go, HeatMapper is a gem."
 - Lisa Phifer, Wi-FiPlanet

"HeatMapper is easy-to-use, accurate, and best of all, free ... It blew my expectations right out of the water."
- Marcus Burton, CWNP