John the Ripper has an official free version, a community enhanced version, and also a pro version. John The Ripper is a combination of the number of password crackers in one package makes it one of the best password testing and breaking program which autodetects password hashes and customizable password cracker. Such as crypt password hash types( MD5, DES or Blowfish).Īlso, passwords stored in MySQL, LDAP, and others. John The Ripper uses a wide variety of password cracking techniques against user accounts of many operating systems, password encryptions, and hashes. John The Ripper widely used to reduce the risk of network security causes by weak passwords as well as to measure other security flaws regarding encryptions. John the Ripper initially developed for UNIX operating system but now it works on Fifteen different platforms. John the ripper is an advanced password cracking tool used by many which are free and open source.
