WeFi!

NetStumbler is a tool for Windows that allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g. It has many uses:Verify that your network is set up the way you intended, find locations with poor coverage in your WLAN, detect other networks that might be causing interference with your network, detect unauthorized "rogue" access points in your workplace, help aim directional antennas for long-haul WLAN links & use it recreationally for WarDriving.Does not work well with Win7. This software has not been updated in years and harkens back to Win Vista days. »

iwScanner is a wireless scanner for linux with an easy to use graphic interface.

Want to monitor your area networks? Identify and troubleshoot issue with your home, small office or enterprise network? Gather useful information about your network performance? Are you simply in search of an elegant replacement of the default OSX wireless utility? You've just found your ideal tool!

WiFiFoFum is a great mobile WiFi scanner and wardriving tool that scans for 802.11 wireless (WiFi) networks and displays information about each network it detects, including: SSID, MAC, RSSI (signal strength), channel, AP mode, security mode and available transmission rates.

Wardriving app, stores scans in sqlite db on the sdcard and displays found networks around in the map.Requires Google MAPS installed.*REQUIRES VALID GPS POSITION TO WORK*

BETA WiFi Buddy is an easy yet functional Wi-Fi network scanner tool. Its core features are: Automatic scanning for access points, Directly connect to open networks, Easy access to all Wi-Fi settings and Keep Wi-Fi radio active while idle.

WiFi Monster is a Wi-Fi discovery tool for PocketPC and Windows Mobile. * Connects open or private networks * It shows current WiFi status * It shows a list of nearby networks * It filters and sorts found networks * it allows you to connect selected network manually * It can turn WiFi on and off * It can turn WiFi off by inactivity timeout and by battery treshold * It is finger friendly * It supports VGA, wide screens, landscape mode, and it looks nice after all :)

Finding a free WiFi network while on vacation can be a nightmare. Using advanced GPS technology, WiFinder scans and places all networks on a map. While walking or driving, WiFinder will automatically update the location of networks if it finds a position that will provide a better signal. Open networks are clearly marked with a green dot, and closed networks with a red dot. Simply throw the laptop on the passenger seat before leaving the house!