GParted is a free partition editor for graphically managing your disk
partitions.
With GParted you can resize, copy, and move partitions without data
loss, enabling you to:
GParted can be used on x86-64 based computers running Linux, Windows, or Mac OS X by booting from media containing GParted Live. A minimum of 640 MB of RAM is needed to use all of the features of the GParted application.
GParted is free
software.
You have the freedom to run, copy, distribute, study, change, and
improve GParted.
You do not have to pay money to use GParted.
GParted is distributed under the
GNU General Public License version 2 or (at your option) any later version.