GParted

GParted (Gnome Partition Editor) is a graphical partition manager that can resize, copy, and move partitions without data loss.

Description
GParted is a partition editing tool found on most distributions of Linux. It comes in an install and live version. GParted is flexible and user friendly with a GUI (Graphic User Interface) making it easy for most users to repartition hard drives for many different reasons. The most common use for GParted is multiple installation of Distros on a hard drive.