3.5 stars

Editor's Rating


User Rating

2 2


disk defragmenter MyDefrag (formerly JkDefrag) is a disk defragmenter that can be run in as-needed or automatic mode via command-line parameters or screensaver integration. By default, the program uses a Fast Optimization, designed for everyday use, but it also supports custom parameters that can move files to the end (or beginning) of the disk, sort them by name, size and other criteria. Even though MyDefrag can be run with a standard Windows GUI, most of it`s strong features are aimed at users that are familiar with command-line usage. As of versions 4, the program also includes a scripting language and extensive customization features. Copyright

Win (All)

Product Details

Publisher J.C. Kessels Price Free
Version 4.3.1  history Last updated May 21, 2010
File Size 1.98 Mb Requirements None

User Reviews

5 stars50% 8
4 stars37% 6
3 stars0% 0
2 stars6% 1
1 star6% 1
Based on 16 reviews

Latest user reviews:

Greatly over looked 5 stars by realbull2009250 May 10, 2013 (Read all my 52 reviews)
Most people boast about other defragmenters, but MyDefrag is just as good or maybe better than the others. It starts up very fast and easy to use and very light. It uses the Windows API system, so it can movedefragment any file safely. It is fast, but not blazingly fast. It defrags and optimizes the HD well. You can use the command-line version to squeeze out some extra features such as sorting by file name, size, last accessed, last change, creation time & other features such as excluding files. The interface is not the most attractive thing to look at, it is very minimalistic and most people these days may prefer that. It has all the typical features/options that one would want in a defragmenter. Also it has a 64-bit version. My only complaint about this is that the GUI needs to be updated and I think all of the options from the command-line version should be included on the GUI interface. The biggest disappointment is that development of this fine tool has come to a halt. This month(May 2013) will be the 3rd-year anniversary since development/support has stopped. show Review details
The best just got better 4 stars by thosthos Oct 21, 2009 (Read all my 2 reviews)
I've used the most popular commercial and freeware defragmenters over the years and kept coming back to JKDefrag, because it was safe, effective, and free. MyDefrag is better; it is faster, mainly because of improved optimization based on 5 zones rather than 3. The scripting gives any user the level of sophistication they need. I only use the supplied weekly and monthly scripts. They make my disk very fast. There are a few issues with this software, but bugs (not critical) are being fixed at a furious pace. I am using 4.2.3 and consider it excellent and stable. show Review details
Same problem ! 1 stars by Shodan816 Aug 27, 2008 (Read all my 38 reviews)
I reviewed this product over 9 months ago and gave it a poor rating because it totally wiped out all of my Vista restore points. Now here we are 9 months later and V3.35 does exactly the same thing ! Great... If you are a Vista user, you have been warned! show Review details
Read all 16 user reviews...

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