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Defraggler icon.png
Defraggler defragmenting in Windows 8
Defraggler defragmenting in Windows 8
Developer(s) Piriform
Initial release 18 August 2008; 9 years ago (2008-08-18)[1]
Stable release 2.21.993[2] (March 16, 2016 (2016-03-16)) [±]
Operating system Windows XP and later
Platform IA-32 and x64
Size 4.3 MB
Available in English, Albanian, Arabic, Armenian, Bosnian, Brazilian Portuguese (Portugues do Brasil), Bulgarian, Catalan (Catala), Chinese (Simplified), Chinese (Traditional), Croatian, Czech (Ceský), Danish, Dutch (Nederlands), Estonian, Finnish (Suomi), French (Français), Georgian, German (Deutsch), Greek, Hebrew, Hungarian (Magyar), Italian (Italiano), Japanese, Lithuanian (Lietuviu), Norwegian, Persian, Polish (Polski), Portuguese (Portugues), Romanian (Romana), Russian, Slovak, Spanish (Español), Swedish (Svenska), Turkish (Türkçe), Ukrainian, Vietnamese..[3]
Type Defragmentation software
License Freemium

Defraggler is a free donationware defragmentation utility developed by Piriform, which can defragment individual files or groups of files on computer system. Defraggler runs on Microsoft Windows; it has support for all versions since Windows XP. It includes support for both IA-32 and x64 versions of these operating systems.[1]


Defraggler can defragment individual files, groups of files (in a folder) or an entire disk partition, either by the user's command or automatically on a schedule. It supports FAT32, NTFS, and exFAT.[4] It can also be installed as a portable application on a USB flash drive. Defragmentation of RAID disks is also supported, although no details are supplied.[5]

Defraggler was given a 5/5 star rating from Softpedia.[6] In Lifehacker's Hive Five for Best Disk Defragmenter, Defraggler received the first place.[7]

See also[edit]


  1. ^ a b "Download Defraggler". FileHippo. Retrieved 23 June 2009. [permanent dead link]
  2. ^ Defraggler version history on
  3. ^ "Multi-lingual support". Defraggler - Features. Piriform. Retrieved 1 July 2011. 
  4. ^ "System requirements". Defraggler documentation. Piriform. Retrieved 22 July 2011. 
  5. ^ "What it can and can't do". 
  6. ^ Olariu, Daniela (August 6, 2008). "Piriform Defraggler - Keeping Those Drives Spinning". Softpedia. SoftNews NET SRL. Retrieved June 5, 2011. 
  7. ^ Fitzpatrick, Jason (September 1, 2009). "Best Disk Defragmenter: Defraggler". Life Hacker. Gawker Media. Retrieved May 11, 2010. 

External links[edit]