GitPedia

Johnny

GUI frontend to John the Ripper password cracker

From openwall·Updated June 16, 2026·View on GitHub·

Johnny the open source cross-platform GUI frontend for John the Ripper, the popular password cracker, written in C++ using the Qt framework. The project is written primarily in C++, distributed under the Other license, first published in 2011. Key topics include: cracker, gui, john, password, qt.

Latest release: v2.2Version 2.2
August 24, 2015View Changelog →

Overview

Johnny the open source cross-platform GUI frontend for John the Ripper, the
popular password cracker, written in C++ using the Qt framework.

Johnny's aim is to automate and simplify the password cracking routine on the
Desktop as well as add extra functionality like session management and easy
hash/password management, on top of the immense capabilities and features
offered by John the Ripper.

The application uses John The Ripper for the actual work, thus it needs to be
installed on your system. Official core (proper) version and the
community-enhanced version (jumbo) are both supported. The latter exposes more
functionality like extra cracking modes and hash types support.

To download official binary redistributables and find more about Johnny visit:
http://openwall.info/wiki/john/johnny

Johnny is released under the BSD 2-clause license.

For detailed licensing info see COPYING dist-file.
For version history see CHANGELOG.
For building and install instructions see INSTALL.

Contributors

Showing top 4 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from openwall/johnny via the GitHub API.Last fetched: 6/17/2026