iDefrag
iDefrag
5.3.1
3.5
0.0
iDefrag free download for Mac

iDefrag for Mac

10 July 2019

Disk defragmentation and optimization tool.

What is iDefrag for Mac

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 metadata file compaction/optimization support.
  • High-performance user-defined file classification engine.
  • Per-block and accurate whole disk display.
  • Detailed statistics so you know whether you need to optimize.
  • Inspector allows you to view details of individual extents/files.
  • Quickly jump to specific files to examine them in more detail.
  • Altivec accelerated display for improved performance.
  • Auto-update feature ensures you always have the latest version.
  • Fine-grained security, just like iPartition.
  • AppleScript support.

Note: Coriolis Systems Limited is shut down and does not provide any support for its products. The license information can be obtained from the Coriolis Systems' website

What's new in iDefrag

Version 5.3.1:

Note: This product is not compatible with macOS Mojave and later.

A free license from the developer is available here

iDefrag for macOS 10.10-10.11
iDefrag for OS X 10.6-10.9
iDefrag for OS X 10.4-10.5
iDefrag for OS X 10.3

iDefrag for Mac Old Versions

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0.0
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There are no reviews yet
philstar22
philstar22
Jan 21 2021
5.3.1
0.0
Jan 21 2021
0.0
Version: 5.3.1
Well, neither my main hard drive, no the external hard drive I actually downloaded iDefrag to defrag actually showed up in the program, so it was completely useless to me. The only thing that showed up, in fact, was the disk image installation thing of idefrag. Strange.
dominym363
dominym363
Oct 28 2020
5.3.1
0.0
Oct 28 2020
0.0
Version: 5.3.1
Can someone explain what the license to use this program is. What is a license file?
lgm1146
lgm1146
Jul 7 2020
5.3.1
3.0
Jul 7 2020
3.0
Version: 5.3.1
iDefrag required to restart my mac to be able to work with the hdd (which is only one in my mac, where is also OS installed) and now it got stuck for more than 10+ hours in the loading screen (apple logo - at startup)... should I abort it by turning off the mac? Anyone knows it's frozen or what should i do? Thanks a lot guys
muffinstructer
muffinstructer
Jan 3 2020
5.3.1
0.0
Jan 3 2020
0.0
Version: 5.3.1
so i would rate your app cause i am a beta tester ,but the problem is i never got to try it it downloaded fine but when it was opened i recived a msg that it was damaged and to toss it out so thats what i did .something you should look into .let me know when you have fixedit and i will give it another shot
neartheredrocks
neartheredrocks
Jul 9 2019
5.3.1
5.0
Jul 9 2019
5.0
Version: 5.3.1
A huge "Thank You" to the developer! I wish you all the best for the future. Both applications, iDefrag and iPartition, are outstanding.
Fariborz
Fariborz
Jul 9 2019
5.3.1
5.0
Jul 9 2019
5.0
Version: 5.3.1
I did benefit from this nifty utility for many years and now it’s gone for good. At least the developer has been generous enough to offer it for free to those who still use the older Systems. Just go to their site to pick up your free license. Fariborz AMIRSHAHI - Verona (Italy)
djrobmoore
djrobmoore
May 11 2019
5.3.0
0.5
May 11 2019
0.5
Version: 5.3.0
Free?? Why is it asking me do drop my license when I try to install it?
pa-geographer
pa-geographer
Apr 22 2018
5.3.0
0.0
Apr 22 2018
0.0
Version: 5.3.0
From the Coriolis website: "Support for this product has ended. iDefrag works fine on macOS 10.12 and earlier, but has some problems on macOS 10.13 (High Sierra). There will be no further updates or bug fixes; the product will remain available for download and purchase for the benefit of users running earlier versions of the macOS."
ted939
ted939
Jan 22 2018
5.3.0
0.0
Jan 22 2018
0.0
Version: 5.3.0
Hi MU community! I hope someone might be able to advise me here.

I recently upgraded my OS from 10.7 to 10.9.5, and I already had iDefrag 1.7.3 (229), which I'm using now.

As we speak, I'm about 14+ hours into a iDefrag Optimize on a 4TB external drive that only has 650GB used, and the Location Indicator is only about halfway through the populated area of the Whole Disk Display.
I'm wondering: Does this mean I have another 14+ hours left to wait for this, and if so, is this normal/OK for iDefrag to take some 14-28 hours to optimize 650GB on a 4TB drive?!

Here's my setup:

iDefrag
Version: 1.7.3 (229)
Algorithm: Optimize
Class Set: Default
Enable per-class sorting: SELECTED/CHECKED
Skip files that cannot be defragmented due to lack of free space: SELECTED/CHECKED

Computer
Model: Late-2011 MacBook Pro
Processor: 2.5GHz Intel Core i7
Memory: 8 GB 1333 MHz DDR3
OS: 10.9.5 (13F1911)
Startup Drive: 1.05 TB SSD SATA
Connection: MacBook Pro ThunderBolt 1 <--> Elgato ThunderBolt 2

External drive being defragged/optimized
Brand: Seagate
Model: Expansion Portable HDD (STEA4000400)
Size: 4TB
Connection: Seagate's USB 3 <--> Elgato USB 3

Dock/Hub
Brand: Elgato
Model: ThunderBolt 2 Dock

ALSO - Regarding upgrading from iDefrag 1.7.3 to 2.2.8 (per Corialis website suggestion for OS10.9.5):
a. What's the process?
b. What's the cost?
c. How would it benefit me (if at all)?

I look forward to some help, as my work is halted until I finish defragging some drives, and I'm wondering if I need to budget 28 hours of computer downtime per 650GB of hard drive defragging :-|

Thanks!
Frankeed
Frankeed
Dec 6 2017
5.3.0
0.0
Dec 6 2017
0.0
Version: 5.3.0
Anybody have any benchmarks that show an improvement in drive performance after defragging, as advertised?
Free
3.5
0.0
App requirements: 
  • Intel 64
  • macOS 10.12.0 or later
License: 
FreeAbsolutely Free

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