Open Source Kon-Boot Alternatives

    Kon-Boot is described as 'application which will silently bypass the authentication process of Windows based operating systems. Without overwriting your old password!'. There are more than 10 alternatives to Kon-Boot for various platforms. The best alternative is John the Ripper, which is both free and Open Source. Other great apps like Kon-Boot are Offline NT Password & Registry Editor (Free, Open Source) and ophcrack (Free, Open Source).

    The list of alternatives was last updated Jan 13, 2021
    • John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, BeOS, and OpenVMS. Its primary purpose is to detect weak Unix passwords. View 15 alternatives to John the Ripper
      This alternative is disputed. John the Ripper is still a legitimate alternative to Kon-Boot, but it might have issues that some users think are important.
      • FreeOpen Source
      • Windows
      • Linux
      • Haiku
      John the Ripper vs Kon-Boot
      pros, cons and recent comments
      Password bypass function isn't there, which is present in KonBoot
      Negative comment over 2 years ago

      John the Ripper is a password cracker where Kon-Boot bypasses the login password all together.
      Negative comment almost 3 years ago

    • Windows stores its user information, including crypted versions of the passwords, in a file called 'sam', usually found in \windows\system32\config. View 13 alternatives to Offline NT Password & Registry Editor
      • FreeOpen Source
      • Windows
      • Linux
    • Ophcrack is a Windows Password cracker based on Rainbow Tables. View 8 alternatives to ophcrack
      • FreeOpen Source
      • Windows
      • Linux
      • BSD
    Showing 3 of 3 alternatives