Xirrus Wi-Fi Inspector!

Let's face it-- there's SOOO much Wi-Fi everywhere these days, the built-in Wi-Fi tools and free utilities that used to help us understand the Wi-Fi environment just can't keep up anymore. Those tools don't help you see how many access points are in the same network, nor how many SSIDs a specific radio is broadcasting.

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. »

Vistumbler is a wireless network scanner for Windows Vista and Windows 7.

KisMAC is an open-source and free stumbler/scanner application for Mac OS X. It has an advantage over MacStumbler/iStumbler/NetStumbler in that it uses monitor mode and passive scanning.

Small utility that runs in the background, and monitor the activity of wireless networks around you.

Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. Kismet will work with any wireless card which supports raw monitoring (rfmon) mode, and (with appropriate hardware) can sniff 802.11b, 802.11a, 802.11g, and 802.11n traffic. Kismet also supports plugins which allow sniffing other media such as DECT.

With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength. Use the detected access points with Google Geolocation and Mozilla Location Service to locate yourself.

A 802.11 wireless scanner and connection manager for Mac OS X. WiFi Scanner will detect access points and clients in ad-hoc mode if the SSID is being broadcasted. It can be used for wireless site surveys, wireless discovery, and to connect to WiFi networks. The tool reports signal strength in dBm and shows access point BSSID/MAC addresses. Features

How strong is your WiFi signal?

Win Hotspot is portable WiFi hotspot application has inbuilt WiFi Scanner to list Channel ,Signal % etc. It Also has bandwidth meter and WiFi Repair Tools.

Virtual Wifi Hotspot is a free software router for Windows based system running Windows 7, Windows 8, Windows Server 2008 R2 and Windows Server 2012.Using Virtual Wifi Hotspot, you can share any internet connection Via Wireless Internet my come from Wifi or LAN or Cable Modem or Dial-up or Cellular, etc.. The internet can be used by any Wifi device such as Laptop or desktop or Smart Phone or iPod Touch or iPhone or Ipad or Android Phone or Zune or Netbook or PS3 or wireless printer, etc.. These Wirelessls connecting devices can connect to Virtual Wifi Hotspot just like any other WiFi Router.Virtual WiFi hotspot is protected by Password and the underlaying security is WPA2 »

WirelessMon is a software tool that allows users to monitor the status of wireless WiFi adapter(s) and gather information about nearby wireless access points and hot spots in real time. WirelessMon can log the information it collects into a file, while also providing comprehensive graphing of signal level and real time IP and 802.11 WiFi statistics.

"Wifi HotSpot" can easily turn your windows pc into a wireless-wifi hotspot. It turns your Windows 7 or Windows 8 computer into a virtual router. With one click you can share your internet connection with your mobile phone, iPhone, iPad, tablet, computer or any other wireless enabled devices. Wifi HotSpot is the perfect solution for sharing your internet connection when you don't have a wireless router or if your using a mobile internet connected service such as Verizon, Sprint, Clear Wireless etc... »

Scanning for wireless networks is now easier and more personalized! AirRadar allows you to scan for open networks and tag them as favourites or filter them out. View detailed network information, graph network signal strength, and automatically join the best open network in range.

netsniff-ng is a free, performant Linux networking toolkit. The gain of performance is reached by zero-copy mechanisms, so that on packet reception and transmission the kernel does not need to copy packets from kernel space to user space and vice versa. It contains the utilities netsniff-ng, trafgen, mausezahn, bpfc, ifpps, flowtop, curvetun, astraceroute.