Gnome Partition Editor (GPartEd) - is a partition manager that enables you to resize, copy, and move partitions without data loss.
The best way to access all of the features of the GParted application is by using the GParted Live bootable image.
GParted Live enables you to use GParted on GNU/Linux as well as other operating systems, such as Windows or Mac OS X.
Features
• Perform actions with partitions such as:
• Create or delete
• Resize or move
• Check
• Label
• Set new UUID
• Copy and paste
Download: 
gparted-live-1.6.0-10-amd64.zip - 548.9 MB
gparted-live-1.6.0-10-i686.zip - 500.1 MB