UltraDefrag Alternatives

UltraDefrag is described as 'disk defragmenter for Windows. It can quickly defragment everything including files which are usually locked by Windows. For instance, UltraDefrag can re-join paging and hibernation files' and is a popular Defrag tool in the os & utilities category. There are more than 10 alternatives to UltraDefrag for Windows and Mac. The best alternative is Defraggler, which is free. Other great apps like UltraDefrag are Auslogics Disk Defrag, WinExt Free, O&O Defrag and IObit Smart Defrag.

UltraDefrag alternatives are mainly Defrag Tools but may also be System Cleaners or Benchmark Tools. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of UltraDefrag.

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UltraDefrag

Free • Open Source
Defrag Tool
Windows

UltraDefrag is a disk defragmenter for Windows. It can quickly defragment everything including files which are usually...

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Defraggler
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Freemium • Proprietary
Defrag Tool
Windows
21 alternatives to Defraggler
It differs from other defrag tools on the market, by enabling you to quickly and simply defrag the files you want to, without having to process the whole drive. You can defrag only if the computer is idle for a definable time, so Defraggler does not slow down the computer if you...
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Defraggler Features
1. PortableDefraggler can be used from a USB stick or similar with no prior installation.
Defrag specific folders
Defrag specific files
Low memory usage
Small-footprint
Multiple languages
Auslogics Disk Defrag
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Freemium • Proprietary
Defrag Tool
Windows
22 alternatives to Auslogics Disk Defrag
Disk fragmentation leads to system slowdowns, PC crashes, slow startup and shutdown and sometimes to system failures. Auslogics Disk Defrag is designed for fast optimization of todays modern hard disks. Get the maximum performance out of your expensive hardware investments.

Auslogics Disk Defrag has no features, suggest some!
Bundleware
It suggests to change default search engines and start page to Yahoo in web browsers
WinExt Free
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Freemium • Proprietary
System Cleaner
Duplicate File Finder
Windows
246 alternatives to WinExt Free
Powerful Win utilities: fix registry, clean junk, protect privacy, optimize system, quick launch, find duplicates, folder size, see more recent resources, activity monitor, batch operation, synchronization, disable context menus, skip UAC, trace file.
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WinExt Free Features
Registry repairing
Folder Size
Synchronization
O&O Defrag
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Paid • Proprietary
Defrag Tool
Windows
26 alternatives to O&O Defrag
O&O Defrag packs file fragments quickly and securely back together to optimize your hard disk under Windows. You can now see what the program does for your system thanks to graphics and statistics, which give you a before-and-after Defrag contrast.
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O&O Defrag Features
Optimization
IObit Smart Defrag
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Freemium • Proprietary
Defrag Tool
Windows
21 alternatives to IObit Smart Defrag
Smart Defrag is a Reliable and Intelligent Disk Defragmenter with Ultra-fast, Stable, Efficient Defrag Engine.

IObit Smart Defrag has no features, suggest some!
Bundleware
The installer may contain adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
Windows Disk Defragmenter
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Free • Proprietary
Defrag Tool
Windows
22 alternatives to Windows Disk Defragmenter
Disk Defragmenter is a computer program included in Microsoft Windows designed to increase access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique commonly known as defragmenting.
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Windows Disk Defragmenter Features
Scheduling
MyDefrag
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Free • Proprietary
Defrag Tool
Windows
24 alternatives to MyDefrag
MyDefrag (previously JkDefrag) is a disk defragmenter and optimizer (a maintenance utility to make your harddisk faster) for Windows 2000, 2003, XP, Vista, 2008, Win7, and for X64. It is freeware, no time limit, fully functional, no advertisements.
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MyDefrag Features
1. Support for scriptingMyDefrag supports scripts and macros to automate or customize tasks.
2. PortableMyDefrag can be used from a USB stick or similar with no prior installation.
Discontinued
The official website is no longer available. Last version, 4.3.1, released in May 2010, can be still downloaded from FileHippo
PerfectDisk
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Paid • Proprietary
Defrag Tool
Windows
23 alternatives to PerfectDisk
PerfectDisk is a disk defragmenter with a variety of advanced disk management features. It supports automatic background defragmentation, flexible scheduling options, and boot-time defragmentation of locked system files.
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PerfectDisk Features
Fragmentation prevention
Optimization
System Mechanic
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Paid • Proprietary
System Cleaner
Defrag Tool
Windows
158 alternatives to System Mechanic
System Mechanic is a suite of tools made to tune up your PC. It can solve several PC problems and optimize performance.
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System Mechanic Features
1. Dark ModeSystem Mechanic supports dark mode for comfortable usage in low light conditions.
Bloatware Remover
1-click maintenance
Real-time protection
Registry repairing
Puran Defrag
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Free Personal • Proprietary
Defrag Tool
Windows
21 alternatives to Puran Defrag
Puran Defrag is a very simple disk defragmenter which will defrag the files and optimize your system, collecting all the fragments of a file and putting them together, as well as moving some frequently used files and all directories to faster disk areas.

Puran Defrag has no features, suggest some!
Discontinued
No support for Windows 10/11.

Showing 10 of 23 alternatives

Defraggler Features

WinExt Free Features

O&O Defrag Features

Windows Disk Defragmenter Features

MyDefrag Features

PerfectDisk Features

System Mechanic Features