iDefrag for Mac
Disk defragmentation and optimization tool.
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iDefrag overview
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 version 5.3.1
View older iDefrag versions
iDefrag for Mac
Free
In English
Version 5.3.1
What users say about iDefrag
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(289 Reviews of iDefrag)
Comments
User Ratings
Feb 13 2023
Version: 5.3.1
I used this to defrag ever since it came out. However, I stopped using it since os x Lion. I now find I need it, so, I downloaded it with the license key yesterday. However, the company is off line and cannot confirm my purchase. I must have the original CD somewhere but I haven't used that in years. Is there a way to get through the problem to get it working again?
Jan 2 2022
Version: 5.3.1
You can read nearly everywhere that defragmenting is now useless and probably was never neededin MacOS: well, there's at least a few areas where it's really helpful, such as sparsebundles, if you use them. Not only it allows you to reclaim free unused space (and sometimes a lot!) but the disk is mounting faster and all operations that use it benefit from defragmentation. I've got mail archives from 20 years of Microsoft Outlook identities stored that way and the difference was plain to see! Thanks a lot Coriolis.
Jan 21 2021
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.
Oct 28 2020
Version: 5.3.1
Can someone explain what the license to use this program is.
What is a license file?
Jul 7 2020
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
