Best Auslogics Disk Defrag Alternatives in 2025
Looking for alternatives to Auslogics Disk Defrag? In this comparison, we take a closer look at Auslogics Disk Defrag alongside similar software solutions including Auslogics Disk Defrag, Defraggler, O&O Defrag Professional Edition, UltraDefrag, IObit Smart Defrag, Auslogics Registry Defrag and PerfectDisk Professional.
Our detailed comparison table highlights key features, pricing, and performance of these leading solutions, empowering you to make an informed decision. Whether you're seeking robust functionality, user-friendly design, or cost-effective alternatives, explore how Auslogics Disk Defrag, Defraggler, O&O Defrag Professional Edition, UltraDefrag, IObit Smart Defrag, Auslogics Registry Defrag and PerfectDisk Professional stack up to find the perfect software for your goals.
Price Model
 Auslogics Disk Defrag
|
Free version available; paid Pro version with additional features. |
 Defraggler
|
Free version available; paid version and portable version offered. |
 O&O Defrag Professional Edition
|
Paid software with free trial; relatively high price point. |
 UltraDefrag
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Open-source software; free with no hidden charges. |
 IObit Smart Defrag
|
Free utility tool; paid version available with more advanced features. |
 Auslogics Registry Defrag
|
Free version available; limited functionality. |
 PerfectDisk Professional
|
Paid software with 30-day trial; offers perpetual license and subscriptions. |
Target Use and Features
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Auslogics Disk Defrag
|
Disk defragmentation software for Windows, supports system and network drives, scheduled defragmentation, optimization of file access speed. |
|
Defraggler
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Disk defragmentation software for Windows, can defragment entire drives or individual files, scheduling options, support forum. |
|
O&O Defrag Professional Edition
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Advanced defragmentation with multiple strategies and real-time background defragmentation; efficient system performance enhancement for Windows. |
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UltraDefrag
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Open-source disk defragmenter supporting boot-time defragmentation and comprehensive documentation for advanced users; schedule support. |
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IObit Smart Defrag
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Disk defragmentation software with automatic defragmentation, boot-time and gaming optimization features, supporting high disk activity and multiple languages. |
|
Auslogics Registry Defrag
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Registry optimization tool with backup/restore and scheduled scans; improves system stability and registry health on Windows. |
|
PerfectDisk Professional
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Advanced disk optimization and defragmentation tool for HDDs and SSDs with flexible scheduling and automated maintenance tasks. |
Operating System Compatibility
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Auslogics Disk Defrag
|
Compatible with Windows XP (SP3), Vista, 7, 8, 8.1, 10. |
|
Defraggler
|
Compatible with Windows XP, Vista, 7, 8, 10 supporting multiple languages. |
|
O&O Defrag Professional Edition
|
Compatible with Windows versions including Windows 10. |
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UltraDefrag
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Compatible with most Windows operating systems including Windows XP to Windows 10; supports multiple languages. |
|
IObit Smart Defrag
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Compatible with Windows 7, 8, 8.1, Vista, XP; supports multi-language interface. |
|
Auslogics Registry Defrag
|
Compatible with Windows XP, Vista, 7, 8. |
|
PerfectDisk Professional
|
Compatible primarily with modern Windows operating systems including Server editions from 2012 R2 onwards to latest versions. |
Choosing the right software isn’t just about features. Size, license type, user ratings, and popularity also matter.
This quick comparison shows how Auslogics Disk Defrag stacks up against Auslogics Disk Defrag, Defraggler, O&O Defrag Professional Edition, UltraDefrag, IObit Smart Defrag, Auslogics Registry Defrag and PerfectDisk Professional in these key areas—helping you find the best alternative for your needs.
Size
|
Auslogics Disk Defrag
|
7.4MB |
|
Defraggler
|
6.1MB |
|
O&O Defrag Professional Edition
|
|
|
UltraDefrag
|
|
|
IObit Smart Defrag
|
3.8MB |
|
Auslogics Registry Defrag
|
8.2MB |
|
PerfectDisk Professional
|
License
|
Auslogics Disk Defrag
|
Freeware |
|
Defraggler
|
Freeware |
|
O&O Defrag Professional Edition
|
Shareware |
|
UltraDefrag
|
Commercial |
|
IObit Smart Defrag
|
Freeware |
|
Auslogics Registry Defrag
|
Freeware |
|
PerfectDisk Professional
|
Shareware |