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Defraggler: The Best Substitute for Windows Disk Defragmenter

If you have been using windows long enough, you should know by now that windows disk defragmenter shipped with the OS is less than optimum solution for your disk defragmentation problem. Disk fragmentation, existing in all modern OS, does not effect system the way NTFS based windows system gets effected. Although with each iteration of windows OS fragmentation of system file has been minimized, it still possess a problem big enough for commercial Disk Defragmenter program to do a profitable business.

Diskeeper, which sells a dumbed down version of it’s program which gets shipped with Microsoft OS, along with PerfectDisk are the leading commercial defragmenter out there. While there has been many free alternative, nothing was good enough to rival their performance, until now. Defraggler is a free disk defragmenter, which is not only a free alternative to commercial counterparts but also very good at it’s job. Defraggler is brought to you by the same guys who made CCleaner, a useful file and registry cleaning software.

Click on the picture for larger view.


Defraggler works much like the same way CCleaner and most defragmenter’s work, first it analyzes the drive for fragmented files and folders and gives you and option to choose which file to defrag or not. Having a choice to defragment individual file is an option that is not available with any defragmenters I have tried, or I know of. It gives you status of the defrag process and the option to pause/start and restart whenever you feel like. Unlike window built-in defragmenter, using your computer while the program is running doesn’t effect it’s performance. Two things I would be looking forward for the upcoming version of Defraggler would be the option to schedule a job in a certain time and defragment on the fly in the background.

Find more (and download) about this awesome software from it’s website:

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  • Dave

    April 18th, 2008 11:19

    PowerDefraggerGui, from the SysInternals guys, has the option to defrag a single file, or directory, or the entire drive. I don’t remember the URL, but a google search should certainly find it.

  • thm

    April 23rd, 2008 03:23

    Actually, Defraggler can also defrag a single file, group of files, folder (recursively) or an entire disk, including free space. And it can verify drives too.

    To defrag individual files, first run an analysis and then select the files you wish to defragment and click the Defrag button.

    To defrag a folder of files recursively (including the folders themselves as well as the files, select Action/Defrag Folder and navigate to the appropriate folder.

    To defrag and entire drive (including files, folders and free space), select the drive in the “drive list” and then select Defrag Drive from either the right-click context menu for that drive, or from the Action menu.

    When defragging an entire drive, Defraggler attempts to place the files packed together at the beginning of the drive, and does a pretty good job of this. This potentially involves moving very large qualtities of data and therefore may be very much slower than a simple defrag of files.

    I would recommend doing this only once or twice a year, and running a quick defrag of files only once a week (or a day for *very* heavy users).

    You can, of course, defrag all files and folders on a given drive *without* defragging the free space by applying the Defrag Folder method to the root of a drive.

    So, all in all, Defraggler is very flexible. And it is very fast!

    PowerDefrag Gui is merely a front end for calling up Sysinternals’ Contig, and the standard Windows command-line version of defrag. Contig only defrags files, nothing else.
    This is OK, but there are better things out there, such as Wincontig [which has a much better GUI], JkDefrag [excellent and flexible, but not pretty], IObit SmartDefrag [latest version is very good], and of course, Defraggler.

  • Ithomeneas

    April 24th, 2008 12:04

    FYI, you can setup a scheduled defragmentation in windows’ task scheduler using the commandline ver of defraggler (df.exe) which is in df’s installation dir.

  • Lou

    May 5th, 2008 16:45

    Defraggler is pretty awesome.. a good example of its performance value is how fast Mozilla Firefox takes to load after defragmenting the drive with Defraggler, compared to other defragmenters, (I used Auslogics Defragmenter). I measured the time it takes to load Mozilla Firefox, and it averages about 2 seconds, compared to 8 seconds before defragmenting with Defraggler. Try it out and experience it for yourself. You have nothing to lose, the software’s free!

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    August 2nd, 2008 13:45

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  • Stan

    August 4th, 2008 19:59

    How about JKDefrag? –> very “customizable” (as in capabilities) in defragging; much more so than the others with GUIs.

    Try it out :) !!

  • reine

    August 16th, 2008 10:13

    if i am good enought?????,…FUCK YOURSELF M$.

  • Ken

    October 5th, 2008 19:10

    O&O Defrag is still my favorite.

  • Ric

    October 8th, 2008 09:05


    That surely has to be the priority here. The biggest problem I have in moving away from MS’s bundled defrag is knowing that whatever I use will do the job without making a mess, and it has to do this consistently. Obviously the sensible ones out there will backup all data before doing a defrag, I don’t really have anywhere just now to put 300Gb’s of image data while I defrag the disk.

    That’s not in the slightest suggesting there are any trust issues with this application, just giving some dialog on using a new defrag util.

  • SnakeEater

    January 22nd, 2009 20:41

    I must admit, this is the all-time best defragmenter yet, for one thing you do have a choice with picking a file to defragment on the file, you do not have to defragment everything at once, I recommend that you would defragment the most fragmented file first, because once that’s out of the way, you can defragment everything else at a rapid speed without the most fragmented file in your way.

    Also, this compared to most third party defragmenters out there is freeware at all times without paying a cent, it’s worth a download 😉

  • Read This Link » Defraggler: The Best Substitute for Windows Disk Defragmente

    January 9th, 2010 19:20

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  • Russ

    August 18th, 2011 17:42

    There’s Cobra File Defrag as well. It allows individual files and folders to be defragmented but has added advantage of using a Windows Explorer style interface –

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