hashcat - The World's Fastest CPU/GPU powered password cracker.
TamoGraph Site Survey - Wi-Fi site coverage survey and modelling application
CrackStation - CrackStation is a web-based service that is used for retrieving passwords by cracking their hashes.
Waircut - Free network audit app
MDCrack - MDcrack is a an aggressive cracker for MD2 MD4 MD5 HMAC-MD4 HMAC-MD5 NTLM PIX IOS APACHE FREEBSD IPB2 CRC32 CRC32B ADLER32 hashes
Ekahau Site Survey - Ekahau Site Survey is a flexible wireless site survey software tool that performs automatic wireless coverage calculations and collects detailed information about your wireless network environment.