Stellar Partition Manager For Mac Work

: You can queue multiple partitioning tasks and execute them in one go to save time.

Scans attached drives and displays current partition layout.
Lets you choose operations (create, delete, resize, format) via a graphical interface.
When you request a change, it stages the operation and shows a preview; operations are queued rather than applied immediately.
Applying changes writes new partition table entries and updates filesystem metadata. Resizing in-place modifies filesystem metadata first (if supported) and then adjusts the partition boundaries.
For operations that require changing on-disk structures (format, partition-scheme conversion, or moving partition boundaries), the app may unmount partitions or require a reboot to a recovery/boot environment.
It typically uses macOS system APIs and low-level disk utilities under the hood, plus its own code for safe modifications and progress reporting.