Brute-force, Cracking, Microsoft Windows, Passwords

Free Windows password cracker

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.



  • » Runs on Windows, Linux/Unix, Mac OS X, …
  • » Cracks LM and NTLM hashes.
  • » Free tables available for Windows XP and Vista/7.
  • » Brute-force module for simple passwords.
  • » Audit mode and CSV export.
  • » Real-time graphs to analyze the passwords.
  • » LiveCD available to simplify the cracking.
  • » Dumps and loads hashes from encrypted SAM recovered from a Windows partition.
  • » Free and open source software (GPL).


  • » Some antivirus programs mistakenly identify Ophcrack as a Trojan or virus.
  • » Software is freely available for download online.
  • » Passwords are recovered automatically using the LiveCD method.
  • » Ophcrack works with Windows 8, Windows 7, Windows Vista, and Windows XP.


Download Ophrack

Download Ophrack Live cd

Rainbow Tables