Good password cracker tools

1. RainbowCrack
RainbowCrack is a general propose implementation of
Philippe Oechslin's faster time-memory trade-off
technique. It crack hashes with rainbow tables.
RainbowCrack uses time-memory tradeoff algorithm to
crack hashes. It differs from brute force hash crackers.
2. NTAccess
NTAccess can replace the administrator password of a
Windows NT, Windows 2000, Windows XP, Windows
Server 2003 or Windows Vista 32-Bit system by
rebooting the computer with a special set of boot disks.
This is useful if you forgot the administrator password
and cannot access the Windows NT/2000/XP/Server
2003/Vista system.
3. NetBIOS Auditing Tool
The intention of this package is to perform various
security checks on remote servers running NetBIOS file
sharing services.
4. Proactive System Password Recovery
Proactive System Password Recovery (PSPR; formerly
known as Advanced Windows Password Recovery) is a
program to recover most types of Windows passwords.
Other information that could be recovered by AWPR is
LSA Secrets; the program also allows to run any
programs in other user's context, show password
history hashes, read password hashes from SAM and
SYSTEM files, perform brute-force and dictionary
attacks on Windows 9x PWL files, and decrypt product
ID and CD key for Windows and Microsoft Office
installations.
5. Proactive Password Auditor
Proactive Password Auditor helps network
administrators to examine the security of their networks
by executing an audit of account passwords. By
exposing insecure passwords, Proactive Password
Auditor demonstrates how secure a network is under
attack.
6. Password Safe
Whether the answer is one or hundreds, Password Safe
allows you to safely and easily create a secured and
encrypted user name/password list. With Password Safe
all you have to do is create and remember a single
"Master Password" of your choice in order to unlock and
access your entire user name/password list.
7. Pandora
Pandora is a set of tools for hacking, intruding, and
testing the security and insecurity of Novell Netware. It
works on versions 4 and 5. Pandora consists of two
distinct sets of programs -- an "online" version and
an"offline" version. Pandora Online is intended to be
used for direct attack against a live Netware 4 or 5
server. Pandora Offline is intended to be used for
password cracking after you have obtained copies of
NDS.
8. ophcrack
Ophcrack is a free Windows password cracker based on
rainbow tables. It is a very efficient implementation of
rainbow tables done by the inventors of the method. It
comes with a Graphical User Interface and runs on
multiple platforms.