• Stellar Partition Manager

Stellar Partition Manager

Efficiently manages partitions on Mac hard drives including the BOOT volume without causing data loss


Professional Mac volume manager that allows you to perform basic partitioning operations, such as creating, deleting, resizing, formatting, and hiding/revealing a partition.

  • A complete Mac Partition Manager utility
  • Creates new partition(s) on Mac hard drive
  • Resizes, formats, or deletes existing partitions
  • Resizes Mac partition by optimizing the free space
  • Resizes Boot Camp & NTFS partition with ease
  • Performs batch operations preventing the risk of data loss
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Key Features

This partition manager Mac utility meticulously plans all partition operations to ensure data safety and also enables you to roll back any unwanted changes before committing the action. Some salient features of the utility are listed below

Create new Partition icon

Create new Partition

The software allows you to easily and safely create partitions of any type on your Mac hard drive. If there is scattered free space on the drive, the comprehensive utility shifts the existing partitions to make sufficient space for the new partition to be created.

Delete Partition icon

Delete Partition

Using the software, you can comfortably delete a partition on your drive to create more free space for other disk usage. It is advisable to backup all your important data before performing this task. For deleting the system partition, you require creating a bootable media using Stellar Partition Manager.

Resizes Boot Camp partitions & NTFS drives icon

Resizes Boot Camp partitions & NTFS drives

With this Mac partition manager software, you can easily resize the Boot Camp partition so that both Windows OS & Mac OS X have appropriate partition sizes. User can also connect their NTFS formatted PC drives and resize the partitions as per need.

Resize Mac Partition icon

Resize Mac Partition

The software effectively resizes Mac partitions on any drive by adjusting and reorganizing the free space and thus, making the operation secure and free from any risk of data loss

Format Partition icon

Format Partition

The software facilitates easy and quick formatting of partitions when you wish to completely wipe off all data present on a particular volume to remove any unwanted virus and other malicious programs from the drive.

Create Bootable Media icon

Create Bootable Media

Stellar Partition Manager enables you to create a bootable media that could be used to perform partitioning operations on the boot drive. You need to backup your important data before working on the boot drive

Hide / Reveal Partition icon

Hide / Reveal Partition

You can anytime hide a partition to conceal your important information or make it inaccessible to any unauthorized person for safety reasons. You can easily unhide or mount this partition later by using the ‘Reveal’ option.

Roll back icon

Roll back

This unique feature allows you to undo your last selection that you made to perform an action, but later decided not to proceed further




Stellar Partition Manager supports all the versions of Mac OS, from 10.6 and above. It also supports OS X El Capitan 10.11.


The partition you are trying to resize may contain some bad sectors. In such case, the resizing operation fails. Another reason could be that the partition has some errors in the file system.


You have made this partition hidden using Stellar Partition Manager. When the software hides a partition, you cannot perform any operation on this partition using Disk Utility. To mount or unhide the partition, you need to reveal it using the software itself.


No, the software does not allow merging partitions


At times, it happens when Disk utility fails to resize any partition on Mac hard drive. It may be the Startup disk partition or any other logical partition that fails to resize via Disk Utility. In such cases, Stellar Partition Manager will help you resize the stubborn partition. This software will create the boot DMG & will start the Mac OS X in bootable environment. It then recognizes & collects free spaces on the Mac hard drive & easily let user to resize the partition to take the free spaces.

Please Note: Stellar Partition Manager recognizes &shows the free spaces on the Mac hard drive whereas Disk Utility doesn’t.


No, Software does not support Power PC anymore.


Boot Camp Resizing is the new feature of Stellar Partition Manager V3.0 and older version such as 2.5 and 2.0 don’t support Boot Camp resizing. It is recommended to register the latest version of Stellar Partition Manger i.e. V3.0 in order to resize Boot Camp partition.

Rating & Reviews


4.6 out of 5 stars


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User Comments



My hard drive spaces went wasted when disk utility failed to use them for resizing Macintosh HD. I took Stellar Partition Manager boot drive and did the resizing in a bootable environment and it worked as planned.

Stephine Capell


My Seagate expansion hard drive lost its volume after I ejected the drive forcefully. I tried reformatting the disk with Disk Utility hoping to get back the volume but failed. Tried the same with Stellar Partition Manager and amazingly got back the original drive size. Thank you for being my sidekick Stellar.

Susanne Kistler


Disk Utility stubbornness forced me to look for 3rd party disk manager software. Luckily, I found Stellar Partition Manager tool for taking care of my disks on El Capitan.

Madison Cathey


I prefer managing my hard drive with Stellar Partition Manager utility on OS X El Capitan since it's Disk Utility is a big time disappointment when resizing the hard drive.



Disk Utility has limitation of collecting the free spaces and utilizing for creating/expanding the partitions. Stellar Partition Manager fills this gap in style.

Kcholy Whelchel  


Disk Utility failed to utilize the spaces left after removal of the BootCamp partition. I came to know only a complete hard drive format can fix this issue. But Stellar Partition Manager came to the picture and effectively formatted the unrecognized spaces with HFS file system and got back my spaces

Lorretta Middleton


I removed Mavericks 10.9 from my hard drive and downloaded El Capitan to a partition having Yosemite as the 3rd partition on the same drive. But wait, I lost around 230 GBs of spaces after the 10.9 deletion. The Disk Utility gave up and neither could resize Macintosh HD (boot drive) nor the Yosemite partition to consume the spaces. Had enough of it with Disk utility and tried the registered version of the Stellar Partition Manager which showed me the 230 Gbs of spaces at the bottom of the hard drive hierarchy and trust me it was a child's play to resize the macintosh HD and subsequently the Yosemite disk with zero gbs of loss.

Gregorio Devereaux


My USB constantly gave me an error message 'couldn't unmount the disk' whenever I needed to format it with the Disk Utility. I upgraded to OS X El Capitan and tried the utility which in matter of minutes got my disk formatted with a new HFS file system.



Only the blend design of the Stellar Partition Manager is a turn off, otherwise it’s a handy application.

Lemuel Herrada


Stay happy with Disk Utility if you aren’t looking to perform advance partitioning on the hard drive. But if you do, then Stellar Partition Manager is a solid choice.

Breanna Flom


Hide and Reveal' options is of great help to limit the access of the media from unauthorized access.

America Hurla


A genius alternative for formatting, creating and resizing a hard drive with NTFS file system on Mac OS X.

Raleigh Gallant


Stellar Partition Manager is so helpful that now I hardly use disk utility for partitioning and resizing my hard drive.

Chantelle Fouche


Without a second thought, go for this software if you have multiple hard drives to manage and Disk Utility can’t fulfill your requirement each time

Rosemary Fordham


Not just the software but support for this particular software is also appreciable.



From last two months, I was trying to format my iMac 2009 but all in vain because Disk Utility was not able to perform successfully at all. This fully featured OS X partitioning utility did well and created the desired partitions effortlessly on my Mac machine without asking much technical queries.

Johnie Dematteo


I didn't try the software until I installed the BootCamp on my Mac and later felt resizing it to an appropriate size. Stellar Partition Manager helped me achieve this milestone.

Takako Patenaude


Disk Utility does the partitioning for free so why chose a paid software over it? But on an event, I lost power supply to my Mac which led the corruption on my mounted external disk. Disk Utility refused to create any partition on it. Power surge had damaged my disk. Anyhow, I choose to install Partition Manager through which I reformatted the disk and got it into multiple partitions.

Moses Eason


Need to upgrade my old Mavericks system, but the now Yosemite system needed more space. Stellar Partition Manager software helps me to make good use of my free space and prepare enough space for my new system.

Leigha Harber


Stellar Partition Manager has always worked well on my drive whenever I had lost or missed the size of my media.

Era Strader


It's a boon for partitioning hard drive on OS X Mavericks


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