Partition Master Free Available at macdownloadpro can resize, move, merge, relocate, and copy disk as or partitions. Local conversion, redefinition, reconstruction, control and inspection of partitions. And many more. While the premium upgrade adds free technical support and dynamic resizing capabilities, free software is enough for most home users.

You have the flexibility to adjust the size of the compartment by dragging the compartment left or right or entering the exact compartment size you want. There is no risk of data loss. Copy the entire disk to another disk, even if the destination partition is smaller than the source partition. Solves the disk space problem by merging the small partition into the large partition.