LastPass is a password management application which acts as a safe for saving username and passwords.

Aircrack-ng is a network software suite consisting of a detector, packet sniffer, WEP and WPA/WPA2-PSK cracker and analysis tool for 802.11 wireless LANs.

chntpw is a software utility for resetting or blanking local passwords used by Windows NT, 2000, XP, Vista, 7, 8 and 8.1.

KeePass is an open source password manager.

Ophcrack is a free open source (GPL licensed) program that cracks Windows log-in passwords by using LM hashes through rainbow tables. The program includes the…

John the Ripper is a free password cracking software tool.