GParted - Extremely powerful partition manager. Copy, clone partitions.
MiniTool Partition Wizard - As a partition magic alternative, Minitool Partition Wizard is the latest partition manager software which be used to manage partition on Windows 10/8/7/XP and Server 2003/2008/2012.
GNU Parted - GNU Parted manipulates partition tables.
EaseUS Partition Master - EaseUS Partition Master Free is a free partition software that can resize, move, merge and copy partitions for Windows 10/8/7/Vista/XP.
blivet-gui - blivet-gui is a graphical tool for storage management that uses blivet library.
GNU fdisk - fdisk is a command-line utility that provides disk partitioning functions.