Developers developed the GUI version for the John The Ripper(JTR), a Fastest command line password cracker tool. 'Johnny' is a GUI for John the Ripper. It was proposed by Shinnok.
Johnny is a GUI concept to John the Ripper written in C++ using the Qt framework, making it cross-platform on both Unix/Linux and Windows operating systems.
Johnny is in development. Development was started as part of Summer of Security 2011 by Aleksey Cherepanov while Shinnok became a mentor for Aleksey.
This GUI version will be very helpful to those who struggle with Command line tool.
 released ~ Johnny){kind=link}