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MyDefrag (JkDefrag) 4.3.1

A free application for optimize and defragment your hard drive

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MyDefrag (JkDefrag) screenshotMyDefrag is a disk optimizer and defragmenting tool that is also able to handle memory sticks, USB external drives, floppy disks, and any other type of disk. The program is completely free and provides a wide variety of optimization strategies that will make your disks run faster. Additionally, the software includes a collection of simple scripts, a screensaver, a scripting engine for advanced users, and a command-line utility.

MyDefrag was built upon the Microsoft's defragmentation API which is found in Windows operating systems. The program is able to analyze your disk and put all the parts (fragments) of the files back together, improving the performance of your computer. the optimization function will put order in your file index and will sort all your files. These two operation will increase the speed of your hard drive and will lengthen its life span, reducing disk's wear and tear.

The application will organize all your files into various areas, such as system files, directories, regular files, rarely used files and booting files. By sorting the files on your drive, this tool will increase your computer performance and speed. The application will also reserve a part of space on NTFS drives for the Master File Table (MFT).


  • Create your own scripts.
  • The default scripts are good for regular users.
Name MyDefrag (JkDefrag)
Version 4.3.1
Developer | see all products from this developer
Product Homepage MyDefrag (JkDefrag)
License Free (Freeware)
Last Week Downloads 1
All Time Downloads 3,911
Filename MyDefrag-v4.3.1.exe
Filesize 2.0MB
MD5 Checksum 8F860C4136F998C05B26FDCAA42699C0
OS Support Windows All
Category Utilities

100% CLEAN Certification

BadgeMyDefrag (JkDefrag) has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
MyDefrag (JkDefrag) June 12, 2015 - Latest Version

Download the free MyDefrag (JkDefrag)