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A Windows password cracker based on rainbow tables

4.1 Stars (161)
28,575 Downloads (This Week)
Last Update:
Download ophcrack-vista-livecd-3.6.0.iso
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Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.

ophcrack Web Site


  • Cracks LM and NTLM Windows hashes
  • Free tables available for Windows XP, Vista and 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
  • Loads hashes from encrypted SAM recovered from a Windows partition


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Although Ophcrack isn't rated for Windows 10, it did yield passwords on three accounts on two Toshiba Satellite laptops running that OS, so it performed beyond the stated scope of its duty. Burning the files to make a bootable CD was easy. Figuring out how to use the program took me some time. The LiveCD version comes with a 'rainbow table' to compare password hashes against, but getting the table to hook up to the program after starting the computer from the CD was not automated. I had to work out which logical volume to access to use the table. In this case, SR0. Here's a hint for those trying to access Windoze machines that won't start from the optical drive: quit the computer by holding down the start button until it quits. Then, boot it again while holding down the F12 key (for Toshiba Satellite), or whatever key is supposed to bring up the boot table on the particular machine. You will get a list of bootable devices, from which you can select the optical drive.

    Posted 03/29/2017
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I have been trying to use this program for about a month now. I tried burning it to a cd and booting up my laptop. It doesnt register. It just loads windows. It takes a minute longer to load to log in screen but thats it. If i log in, it picks the cd up as "Ophcrack livecd". I then tried it on usb. Downloaded usbboot, copied/burned ophcrack to the 8gb usb(fat32). The system sees the usb as "ophcrack livecd". i restart, open boot menu, select the usb and still nothing. It loads windows. I have ophcrack v3.6.0. I am running Windows 7 ultimate. Why is it not working? Im so sure i have done everything 100%. Please help.

    Posted 10/24/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Hey kaywat716, download Hirens ISO. It has pwd reset tools for any account. Interesting tool, but even using the largest table, unable to crack my Upper and lower case alpha-numeric with special character password. I imagine testing the security etc of passwords can be useful, yet resetting takes minutes.

    Posted 02/18/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I tried it on an embedded windows thin client and it does not work- image goes black after loading..

    Posted 01/17/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    just signed up having trouble with my desktop

    Posted 09/26/2013
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Additional Project Details

Intended Audience

System Administrators, Developers, End Users/Desktop

User Interface

Web-based, Command-line, Qt

Programming Language

C++, C, Java



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