inSSIDer

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.

Commercial Windows Android Android Tablet

Aircrack-ng

Aircrack-ng is an 802.11 WEP and WPA-PSK keys cracking program that can recover keys once enough data packets have been captured.

Free Open Source Windows Linux Fern Wifi Cracker

NetStumbler

NetStumbler is a tool for Windows that allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g.

Free Windows

Winhotspot

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. Please Update to version 1.2, Internet sharing bug has been fixed.

Free Windows

Vistumbler

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

Free Open Source Windows

reaver

Reaver implements a brute force attack against Wifi Protected Setup (WPS) registrar PINs in order to recover WPA/WPA2 passphrases.

Free Open Source Linux

WiFi Explorer

WiFi Explorer is a tool to scan, find, and troubleshoot wireless networks. It can be used to quickly identify channel conflicts, overlapping and other factors (e.g.

Commercial Mac OS X

Kismet

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.

Free Linux

Homedale

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.

Free Windows

iwScanner

iwScanner is a wireless scanner for linux with an easy to use graphic interface. Its designed in Glade and written in python, so it just need PyGTK to run in any...

Free Open Source Linux

Virtual WiFi Hotspot

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.

Free Windows

Xirrus Wi-Fi Inspector

The Xirrus Wi-Fi Inspector is a powerful tool for managing and troubleshooting the Wi-Fi on a Windows XP SP2 or later, Vista, or 7 laptop. Built in tests enable you to...

Free Windows

NetSurveyor

NetSurveyor is a diagnostic tool that falls under the category of WiFi Scanners or 802.11 Network Discovery Tools. The best known in this category is NetStumbler . A...

Free Windows

NETGEAR WiFi Analytics

How strong is your WiFi signal? You can use the NETGEAR WiFi Analytics app to get advanced analytics that help you optimize your existing or newly extended WiFi network.

Free Android Android Tablet

WiFi Map — Free Passwords

Connect to WiFi passwords for FREE internet access all over the world! The most popular WiFi application *** TOP 1 in 50 countries *** TOP 1 in Travel category in 100 countries *** Contains to 100 million WiFi hotspots!.

Free Android iPhone

WiFi Scanner

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...

Commercial Mac OS X

AirRadar

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...

Commercial Mac OS X

Wireless WEP Key Password Spy

Wireless WEP Key Password Spy will instantly recover all WEP keys and wireless network passwords that have been stored on your computer. To get started, click "Find...

Commercial Windows