GanttProject

GanttProject is a free (even commercial use) and open source Java-based project management software for Linux, Mac OS X, and Windows. Since it is a desktop application, no internet is required for use. The project was started in 2003. A Gantt chart popularized by...

Debian

Debian is a free and open source GNU/Linux operating system. It was founded by Ian Murdock in 1993. The first stable release was in 1996. Debian comes with over 51000 packages, so good chance that no matter what type of application you need you will find it in Debian....