TaskJuggler is GPL-licensed (free software) project management software that runs under the Linux and Unix operating systems and is programmed in C++  using the Qt toolkit and KDE libraries. The TaskJuggler Project was started in 2001 by Chris Schläger.
TaskJuggler is a free, open-source project management tool designed for Linux and Unix operating systems.  It's written in C++, utilizing the Qt toolkit and KDE libraries. The TaskJuggler Project began in 2001 under the leadership of Chris Schläger.