Defraggler is a formerly-supported freeware defragmentation utility developed by Piriform Software, which can defragment individual files or groups of files on computer memory systems. 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. In September 2026, Piriform announced that Defraggler had reached its end of life. It is no longer hosted on Piriform's website, and all download and support pages for the product have been removed.
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. 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.
What is Defraggler?
Defraggler is a proprietary disk & usb tool program for Windows from Piriform. It ranks 13th by popularity among disk & usb tools in this catalogue. The first release dates back to 2007. It is written in C++.
Installation and requirements
Official installers exist for Any CPU as EXE (NSIS). Installation asks for administrator rights. It needs Windows 10 or newer. The installer supports unattended (silent) installation.
Popularity and file types
The Chocolatey package has been downloaded 575,221 times. Wikipedia has an article about it in 17 of our languages. Similar programs include Rufus, Ventoy and smartmontools.
Pros / Cons
Pros
- Documented silent install
- Mature project (since 2007)
Cons
- Proprietary licence: check the terms and price
- Installation needs administrator rights
- No update for more than a year
In short: Defraggler is a disk & usb tool tool for Any CPU PCs. Updates have slowed down. Administrators can deploy it unattended.
Screenshots
Is Defraggler safe to download?
- The file is served by download.ccleaner.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
167B7192937B39E657DEF16FFB0FDBBAB326F007747505D5C8785811D6B03AB8· Open the VirusTotal report for this hash - The link has not been checked yet
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 2.22Latest | May 28, 2021 | — | Any CPU EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Piriform.Defraggler -echoco install defraggler -yscoop install extras/defragglerdfsetup222.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Piriform
- Category
- Disk & USB tools
- Licence
- Proprietary
- Price
- See the publisher’s site
- Written in
- C++
- Requires
- Windows 11 / 10 (Windows 10+)
- Architecture
- Any CPU
- Installer
- EXE (NSIS)
- Version
- 2.22
- Released
- May 28, 2021
- First release
- 2007
- Added to the catalogue
- May 28, 2021
- Versions listed
- 1
- Chocolatey downloads
- 575,221
- Website
- ccleaner.com
- winget ID
- Piriform.Defraggler
- Chocolatey package
- defraggler
- Scoop package
- extras/defraggler
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Defraggler
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Frequently asked questions
Is Defraggler free?
Defraggler is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Defraggler safe to download?
The download comes from download.ccleaner.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Defraggler with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Defraggler be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does Defraggler support?
The installer requires Windows 10 or newer and is available for Any CPU.
Does Defraggler run on ARM (Windows on Arm)?
The installer is architecture-neutral.
What are alternatives to Defraggler?
Rufus, Ventoy, smartmontools, unetbootin and gdu. The alternatives page compares them.
