All Windows Defragmentation Utilities
Stand-alone products, listed alphabetically by product name (for Microsoft Windows XP/Vista/Win7 unless otherwise noted).
Fake disk defraggers (Scareware)*
Reported by GFI Labs Blog and Spyware Void. These programs display convincing error messages that trick you into paying the scam artist to "fix" the "problem". They perform no useful function other than to enrich the scam artist.
Defrag Utilities in a Software Suite
Alphabetically by suite name (for Microsoft Windows XP/Vista/Win7 unless otherwise noted):
| Product Name |
Type |
Cost $ |
Web Site |
More |
| Auslogic BoostSpeed | Freeware | 0 | [link] | [info page] |
| Mindsoft Utilities | Commercial | 19.95 | [link] | [info page] |
| Norton Utilities | Commercial | 49.99 | [link] | [info page] |
| Norton 360™ | Commercial | 79.99 | [link] | [info page] |
| PC Pitstop Optimize | Commercial | 29.99 | [link] | [info page] |
| PC Tools Disk Suite | Commercial | 39.95 EUR | [link] | [info page] |
| PerfectSpeed PC Optimizer | Commercial | 29.99 | [link] | [info page] |
| Speedy PC | Commercial | 29.95 | [link] | [info page] |
| SystemSuite™ 10 Professional | Commercial | 59.95 | [link] | [info page] |
| TuneUp Utilities | Commercial | 49.95 | [link] | [info page] |
| Click on a column heading to change the sort order.
All "$" prices are USD. Prices may vary, depending on supplier, and applicable discounts and promotions.
|
Defrag Utilities for Servers Only
Many of the workstation products may be used on a server, but these are not listed here, since they do not have server-specific features. Listed alphabetically by product name (for Microsoft Windows Server 2000/2003/2008 unless otherwise noted):
| Product Name |
Type |
Cost $ |
Web Site |
More |
| Diskeeper Server | Commercial | 349.95 | [link] | [info page] |
| mst Defrag Server | Commercial | 89.90 | [link] | [info page] |
| O&O Defrag Server Edition | Commercial | 296.31 | [link] | [info page] |
| PerfectDisk Server | Commercial | 99.99 | [link] | [info page] |
| PerfectDisk for Exchange | Commercial | 399.99 | [link] | [info page] |
| Click on a column heading to change the sort order.
All "$" prices are USD. Prices may vary, depending on supplier, and applicable discounts and promotions.
|
Offline/Boot Time Defrag
These programs offer the option of doing a defrag at "boot time" (when the PC is still starting up):
These programs require the use of a boot CD and use their own operating system to do the defrag; i.e. not using the safe Windows API calls:
| Product Name |
Type |
Cost $ |
Web Site |
More |
| Paragon Total Defrag | Commercial | 29.95 | [link] | [info page] |
| Partition Logic | Freeware | 0 | [link] | [info page] |
No Longer Available
No longer developed, or available for sale, or for download:
| Product Name |
Type |
Comment |
| Abexo Defragmenter Pro Plus | Commercial | web site no longer working [review] |
| fragdown | Freeware | [link] Original Author's site no longer available |
| hsDefragSaver | Legacy Product | [link] |
| JKDefrag | Free, Open Source | [link] Replaced by MyDefrag (see above) |
| Multiple Applicator | Freeware | [link] Original Author's site no longer available |
| Nova Disk Accelerator Pro | Commercial | No longer listed in products page [link] |
| PC Mesh Defrag for Windows 4.0 | Commercial | web site no longer working |
| Power Defrag | Commercial | [link] Original Author's site no longer available |
| UnityPro Disk Idle Optimiser | Freeware | [link] Original Author's site no longer available |
| Winternals Defrag Manager | Commercial | Bought out by Microsoft, no longer sold. |

This page is under construction: there is a lot of information to collate, check and cross-check, but the end result should be worth it. Thanks for your patience.
See Also
See the article on "Before You Defrag Your PC" for advice on speeding up your PC and reducing risk, and "Why Defragmentation is Needed" for a more detailed look at defrag strategies and tips.
Much of this information was originally published in The Great Defrag Shootout
The Paragon Total Defrag 2007 (US$29.95) help file has an excellent summary of disk defragmentation,
with diagrams. DiskTrix UltimateDefrag (US$39.95) has a help file that
explains the theory in more detail.
Wikipedia has a table/list of Defrag software, but it is incomplete, and the editors keep deleting references to products.
Gizmo's Reviews of most Freeware defrag programs
Note - If there are any updates, missing programs or other inaccuracies, please let us know so that the list can be corrected. Also, if you are a vendor/author/tech support person for any one of these products, please contact us.