Head-to-head · Disk Defragmentation Software
Disk SpeedUp vs Auslogics Disk Defrag
Disk SpeedUp leads on 0 checks, Auslogics Disk Defrag on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreDisk SpeedUp · 9.2/10
- Free planboth
Disk SpeedUp scores higher on our rubric for disk defragmentation software: 9.2 against 8.4 out of 10; our editors rank them #2 and #5.
On drive types, Disk SpeedUp gives you Both where Auslogics Disk Defrag offers Hdd. On filesystem support, Disk SpeedUp gives you Multi-filesystem where Auslogics Disk Defrag offers Ntfs.
Disk SpeedUp is the better fit for free Windows defragmentation and SSD optimization. Auslogics Disk Defrag is the better fit for free HDD defragmentation with advanced controls.
- Disk SpeedUp fits best
Free Windows defragmentation and SSD optimization
- Auslogics Disk Defrag fits best
Free HDD defragmentation with advanced controls
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Side by side
| Feature | Disk SpeedUp 9.2/10 Visit ↗ | Auslogics Disk Defrag 8.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.2 | 8.4 |
| Ranking | #2 in Disk Defragmentation Software | #5 in Disk Defragmentation Software |
| Best for | Free Windows defragmentation and SSD optimization | Free HDD defragmentation with advanced controls |
| Pricing model | Free | Free plan + paid |
| Starting price | Free plan | — |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | Windows | Windows |
| Support | Email, Docs | Email, Tickets, Docs |
| Built for | Solo, Small business | Solo, Small business |
| Features Disk SpeedUp 3/3 · Auslogics Disk Defrag 3/3 | ||
| Scheduled optimization | ✓ | ✓ |
| Automatic optimization | ✓ | ✓ |
| Boot-time optimization | ✓ | ✓ |
| Specs | ||
| Drive types | Both | Hdd |
| Filesystem support | Multi-filesystem | Ntfs |
| Maximum drive count | Not checked yet | Not checked yet |
| Our review | ||
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| Cons |
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| Our verdict | Disk SpeedUp is a free Windows utility for analyzing, defragmenting, and optimizing disk drives. It supports both HDD and SSD storage, making it suitable for Windows users who want one tool for visual fragmentation analysis, conventional… Read the review → |
Auslogics Disk Defrag is a Windows utility for analyzing, defragmenting, and optimizing hard disk drives. It is aimed at users who want more control than basic manual defragmentation, including scheduled jobs, free-space consolidation,… Read the review → |
Strengths and trade-offs
Disk SpeedUp — where it wins
- Supports both HDD and SSD optimization
- Includes scheduled, automatic, and boot-time defragmentation
- Offers exclusion lists and multiple optimization modes
Where it doesn't
- Runs on Windows systems only
- Not open source
- Focused on disk defragmentation and optimization
Auslogics Disk Defrag — where it wins
- Free edition includes disk analysis and basic defragmentation
- Supports scheduled, boot-time, file-level, and free-space optimization
- Offers portable operation and command-line support
Where it doesn't
- Windows-only availability limits cross-platform use
- Designed for HDDs rather than SSD defragmentation
- Advanced optimization and repair features are in Pro
- Disk SpeedUp9.2/10 · Free plan
A free Windows tool for HDD and SSD analysis, defragmentation, and optimization.
Visit Disk SpeedUpFull verdict → - Auslogics Disk Defrag8.4/10 · Free plan
A Windows HDD defragmenter with analysis, scheduling, and boot-time tools.
Visit AuslogicsFull verdict →
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- O&O Defrag vs Auslogics Disk Defrag
All disk defragmentation software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update




