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iDefrag helps defragment and optimize your disk for improved performance.

iDefrag Features
  • Supports HFS and HFS+ (Mac OS Extended).
  • Supports case sensitive and journaled filesystems.
  • Supports adaptive hot file clustering ("Hot Zone").
  • Four powerful defragmentation algorithms:
    • Compact data, moving all free space to one place.
    • Optimize filesystem metadata.
    • On-line defragmentation.
    • Defragment whilst your disk is mounted.
    • Advanced programmable optimization.
    • Rearrange your disk the way you want.
  • B-Tree

What's New in iDefrag

Version 5.3.0:

This version is for macOS Sierra (10.12) users only. For earlier versions see the compatibility chart on Coriolis Systems website.

Note: Currently available for $12.95.

  • Release notes were unavailable when this listing was updated.

Requirements for iDefrag

  • macOS 10.12 or later (see compatibility chart)
  • Support for OS X 10.10 and 10.11 in the variant download
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iDefrag User Discussion

3.6 147
Current Version (5.x)
Downloads 292,185
Version Downloads 2,680
License Shareware
Date 05 Dec 2017
Platform Intel 64 / OS X
Price $39.95
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