JkDefrag

Download Editors' Rating:
3.5
Very good
Average User Rating:
4.3
out of 121 votes

Quick Specs

  • Version:
    3.36
  • Total Downloads:
    99,557
  • Date Added:
    Nov. 03, 2008
  • Price:
    Free
  • File Size:
    1.99MB
  • Downloads Last Week:
    93
  • Platform:
    Windows

Editors' Review

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Ugly and hardworking, JkDefrag is a program that only a developer or expert user could love. The application performs its single function: to defragment and optimize any disk. The interface uses the same color language as standard defrag utilities to represent clusters, but any attempt at visual nicety ends there. Instead, the progress screen of JkDefrag most resembles an 8-bit 8086 display error.

The JkDefrag download is a ZIP file containing three methods of accessing the same function: the Windows version we used, a command-line .exe, and a screensaver .exe. You can set a few options for the screensaver tool, such as the screensaver you want displayed. Apart from these items, there are no settings and little explanatory text within the program. Disk defragmentation is often a process left to chug away overnight; compared with this time frame, JkDefrag is a Japanese bullet train. We ran the program in the background while performing other tasks, and it completed its work in just over 2 hours.

Although JkDefrag worked well for us, we were a little disturbed that when we clicked on the executable, the program began the defrag process on our C:\ drive immediately. The developer states that the program will work on any device that Windows sees as an independent disk, but it is not clear how to point the program at anything in particular. Still, JkDefrag is an excellent tool but its almost total lack of interface options makes it appropriate only for expert users.

 
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Publisher's Description

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User Reviews
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Results 1–10 of 15

5 stars

"Best Defrag tool I have used & it optimizes files.Fast"

June 29, 2009  |  By musicman4you

 |  Version: JkDefrag 3.36

Pros

It is simple and fast and unlike other defragmenters this one optimizes your files so your PC can find the files faster and this makes your PC work faster.It doesn't have to search all over your HD for scattered fragments.

Cons

None that I have found

Summary

This is the only Free defragmenter tool I know of that is not only fast but optimizes your hard drive to run faster.It lines everything up like Norton Speed Disk and the slower built in Windows Defragmenter.I have used other Free ones like Auslogic but they spread files all over my hard drive making my PC slower.They did not optimize and compact your files like JkDefrag does.I know Auslogic Defrag was fast and more pretty but after a Defrag I had files spread all over my HD.I would go to the Windows Defrag and let it analyse but not run it and files were all over the HD.I did the same with JkDefrag and they were compacted very well.People should remember the first time you run this it will take longer but after it lines all the files up it won't take as long the next time unless you go along time without defragmenting.I think if you use it you will like it and it cleans very well without all the bells and whistles the others use.

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4 stars

"Simple, Versatile, Effective, Stable"

June 03, 2009  |  By Jim_Williamson

 |  Version: JkDefrag 3.36

Pros

Free. Reasonable "default" file defragment and optimization scheme. Command line options for greater control (not typically needed).

Cons

On some systems, when finished, the screen will show an empty area where other systems may show the "completed" file map. An trivial 'con'.

Summary

Do consider using the "screen saver" defrag method. This will remove the need to schedule a defragment task and will remove the "I should remember to defragment" mental ToDo. Setting it as the screen saver is reasonable for most general purpose Windows systems.

The author accepts donations. Send him one if you like it. I'm not affiliated - it's a nice app.

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4 stars

"Very good program."

June 01, 2009  |  By Maria Camila Omegna Rocha

 |  Version: JkDefrag 3.36

Pros

It's surprisingly quick and easy to use.

Cons

It doesn't have a GUI interface, but it's really no problem, because it's very easy to use.

Summary

I like it very much, it attends to all my defragging needs.

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5 stars

"good good good"

April 27, 2009  |  By Ghis1964

 |  Version: JkDefrag 3.36

Pros

it defrags!
other companies don't even know what the word "defrag" means.

Cons

as for the GUI, I guess I'll have to start learning how to work with command line(which is not at all why I have bought an OS for, otherwise why bother with an OS, might as well keep-on working in DOS!!!)

Summary

I have disable windows defrag and all the others went to the trash bin.

And if these guys can build this and give out a working apps for free, what are all the guys spend our money on?

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3 stars

"it works ok"

April 22, 2009  |  By lljrat1

 |  Version: JkDefrag 3.36

Pros

it is easy to use

Cons

IT WORKS ok

Summary

have not used it very long to know

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5 stars

"Love it Love it LOve IT"

April 04, 2009  |  By Llantha

 |  Version: JkDefrag 3.36

Pros

Lightweight. Really fast for what it does. Got me lower on defrag that all the rest of the utilities I had run from WinXP Defrag to some fairly expensive utility suites. Love it

Cons

None. No problems at all

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4 stars

"Fast and easy to use. Free."

April 01, 2009  |  By Bowen88

 |  Version: JkDefrag 3.36

Pros

Small size programme with very little fuss. Great for creating batch files. Did I mention it's free and portable? Work well even with Vista.

Cons

Lack of a real GUI could be a turn off for some. And those that don't like to use command lines may find it limiting.

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5 stars

"Very good application"

February 16, 2009  |  By maxijbl

 |  Version: JkDefrag 3.36

Pros

It's fast and very simple, i try many defragglers but this one it's fabulous.

Cons

Maybe the design it's not the best but it's not a big problem. I wanna say THANK YOU to the developers !

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5 stars

"Good for programmers and command line users"

February 10, 2009  |  By verdyp

 |  Version: JkDefrag 3.36

Pros

Free, open-source, interesting for the hidden details within NTFS.

Cons

No GUI, but it's a feature ! In fact the tool is supposed to be run from a command line, including the GUI version !

Summary

Remember to get the sources and compile it your self to tweak and optimize it the best for your system!

Updated on Mar 2, 2009

Certainly one of the most complete defragmenter, to be used for maximum defragmentation, even though it will probably not fit your needs for everyday use as its defragmentation can be very long. But you're given the sources and can customize it the way you want to define your own defragmenation policy: the sources containt lots of undocumented infos about NTFS, and this program is the only defragmenter that can effecticvely track EVERY piece of data stored on yoru disk: it does not forget anything.
However it should not be used for defragmenting a live partition of your running system. It will make miracles when running it from a live CD (it will be even better when it will be ported to a smaller Linux boot CD). Anyway this program is very safe as it erspects the Microsoft API used by all deframgmenters to copy and move data on disk (its transactions are logged by NTFS, and can be rolled back in case of any failure, should it ever occur)

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1 stars

"I find JkDefrag a MINDLESS app."

January 20, 2009  |  By caenet

 |  Version: JkDefrag 3.36

Pros

free & portable

Cons

separate GUI; slow; mindless;

Summary

I had hopes for JkDefrag because JkDefrag is a portable app; however,
upon launching JkDefrag for the first time I was surprised to see that JkDefrag immediately
began to defrag drive C:\ without giving the user any option of what (if anything) to do.
I decided to let JkDefrag finish defragmenting C:\ and was then surprised that JkDefrag
immediately started to Defrag D:\. I had no choice but to close the app's DOS like window.
I suppuse JkDefrag would have gone on to Defrag my drives F:\, K:\, V:\ & X:\ ... mindless.
I then tried JkDefrag on my oldest XP laptop (with an already fully defragged C:\ drive).
Unlike AusLogics or Windows defrag which defragment this old, slow XP laptop's HDD quickly
and even quicker when the HDD is already defragmented, JkDefrag ran all night & half the morning
defragmenting an already fully defragmented HDD ... mindless ...

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Results 1–10 of 15

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Full Specifications

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General
Publisher Jeroen Kessels
Publisher web site http://www.kessels.com/
Release Date November 03, 2008
Date Added November 03, 2008
Version 3.36
Category
Category Utilities & Operating Systems
Subcategory Maintenance & Optimization
Operating Systems
Operating Systems Windows Vista, Windows 2003, Windows XP, Windows, Windows 2000
Additional Requirements
Download Information
File Size 1.99MB
File Name MyDefrag-v4.3.1.exe
Popularity
Total Downloads 99,557
Downloads Last Week 93
Pricing
License Model Free
Limitations Not available
Price Free

Previous Versions:

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