• Stellar Volume Optimizer

Stellar Volume Optimizer

Efficient Tool to Optimize the Performance of Mac Volumes

An essential tool for Mac users that rebuild the corrupt directories of Mac OS X, making the volume error free and enhance the performance of your Mac

  • Repairs damaged or Corrupt Mac Volumes
  • Enables rebuilding damaged Mac OS directory
  • Repairs Mac formatted external hard drives
  • Verifies Disk Permissions of the Boot Volume
  • Facilitates Volume Journaling for secondary Mac volumes
  • Supports macOS Sierra 10.12
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Key Features

Stellar Volume Optimizer for Mac is an essential tool that checks and rebuilds corrupts Mac volumes. The software is a complete Mac optimizer, which keeps the entire hard drive of your Mac error-free. Here are some of the salient features of the software.

 Repairs and Rebuilds Volume Directory icon

Repairs and Rebuilds Volume Directory

Stellar Volume Optimizer repairs damaged and corrupt directories of your Mac volumes. The software replaces the directories with errors with the repaired ones so that the data, which are inaccessible earlier, can be regained.

Verifies and Repairs Disk Permissions icon

Verifies and Repairs Disk Permissions

Incorrect disk permissions result in data inaccessibility and loss of valuable information. The software verifies all the disk permissions, checks for the inconsistency and repairs the incorrect disk permissions. In addition, you can verify and repair the boot volume disk permissions as well.

Volume Journaling for Non-Boot Mac Volumes icon

Volume Journaling for Non-Boot Mac Volumes

Journaling is very much essential to protect the integrity of the Mac OS Extended file system on individual volumes. If the journaling in any of the Mac volume is compromised, the volume goes into an inconsistent state, which later results in permanent disk damage. Stellar Volume Optimizer manages the journaling of individual non-boot volumes so that your Mac hard drive functions perfectly fine and you do not have to run for disk repair ever.

Supports Repair for Mac External Hard Drives icon

Supports Repair for Mac External Hard Drives

In addition to the Boot volume and other non-volumes of your Mac, Stellar Volume Optimizer, also supports all removable storage media. If any of your external hard drive or pen drive has become inaccessible due to Directory corruption, the software repairs the damage and gets the media back to working state.




When the directory of your Mac volume is damaged, the system throws several error messages. Occurrences of such messages indicate that the Mac volume directories are damaged or corrupt. Some of these messages are -

'Invalid key length'

'Invalid index key'

'Invalid leaf record count'


The demo version of the software allows you to create bootable DMG, with which you can verify for corruption in the Mac directory.


No, registration isn't required for repairing disk permissions. You need to register or activate Stellar Volume Optimizer tool to rebuild directory structure of the hard disk drive. Read More: How to free repair Mac disk permissions on startup disk?


No, Volume Optimizer tool doesn’t support RAID drives.


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