Map Wi-Fi coverage.Discover and locate Wi-Fi radios.Optimize your Wi-Fi.

The World's Most Popular Wi-Fi Mapping Tool. For Free !

• See Wi-Fi coverage on a map​
  
• Locate all access points
  
• Detect security settings and finds open networks
  
• Free of charge, one-minute install
  
• Supports 802.11n, as well as a/b/g
  

Want to figure out how your Wi-Fi is covering your home, or small office? Or just want to know out what wireless LAN routers are out there?  Think your neighbors' or nearby Starbucks' Wi-Fi causing a problem with yours? With HeatMapper, you can stop guessing and start seeing.  HeatMapper is the little brother of Ekahau Site Survey, the world's leading professional Wi-Fi design toolkit.  HeatMapper is great for homes and small offices. For larger deployments, choose Ekahau Site Survey or the Android-based Ekahau Mobile Survey.