No. 21 of 22 ·Disk Defragmentation Software

UltraDefrag

Windows

Freedom report

One barScore 4.9

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

UltraDefrag is ranked #21 of 22 in disk defragmentation software on Freedom251. It runs on Windows. There is no free plan.

UltraDefrag plans and pricing

All plans

Standard Not published Lifetime license Up to 3 computers · all features · 24/7 technical support · free maintenance updates ultradefrag.net · 3 Oct 2026

Enterprise Not published Lifetime license Unlimited computers · all features · 24/7 technical support · free maintenance updates ultradefrag.net · 3 Oct 2026

Compared on disk defragmentation software

Free plan: No
Drive types: both
Scheduled optimization: Yes
Automatic optimization: Yes
Boot-time optimization: Yes
Filesystem support: multi-filesystem

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The record

Purpose: UltraDefrag 15 is a disk defragmenter intended to improve PC performance by reassembling fragmented files.
SMART monitoring: The product monitors disk health using SMART technology and includes integrity and thermal protection features.
File and folder defragmentation: Users can defragment selected files and folders from Windows Explorer’s context menu.
NTFS support: The product defragments NTFS metafiles and data streams, including the Master File Table.
Locked files: A special mode that runs when Windows boots can defragment locked files such as page, swap, and hibernation files.
Optimization and automation: Disk optimization moves files toward faster disk areas, defragments free space, and can run automatically while the computer is idle or on a schedule.
SSD handling: For SSD defragmentation, files with fewer than 20 fragments are excluded by default, and the product uses TRIM.
Cleanup tools: The product removes temporary files before disk processing and includes a tool to clean up obsolete files from Windows updates.
Automation and portability: UltraDefrag includes a command-line interface for automating defragmentation tasks and a portable edition that can run from a USB stick without installation.
Supported systems: The maker lists Windows 11, 10, 8.1, 8, 7 and several Windows Server versions, with 32-bit and 64-bit support.
Safety claim: The maker says the product uses the Windows Defragmentation API and cannot damage files during defragmentation.
Privacy and payments: The privacy policy says payment data is stored by FastSpring and that the maker collects website usage and device information; the policy was last updated June 6, 2021.
Support: The maker advertises 24/7 customer support, and its support center provides installer and password recovery for registered purchasers.
Maker and project history: The site identifies Green Gate Systems, LLC, at 105 N 1st St #429, San Jose, California, and says Dmitri Arkhangelski started the project in 2007.

Where it ranks on Freedom251

Best Disk Defragmentation Software in 2026#21 of 22

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Sources

ultradefrag.net· checked 3 Oct 2026
ultradefrag.net/support/getting-started/changelog/· checked 3 Oct 2026
ultradefrag.net/support/getting-started/ultradefrag-fea· checked 3 Oct 2026
ultradefrag.net/privacy-policy/· checked 3 Oct 2026
ultradefrag.net/about-us/· checked 3 Oct 2026