UltraDefrag vs Auslogics Disk Defrag

UltraDefrag8.6Visit Auslogics Disk Defrag8.4Visit

Higher score UltraDefrag #4 in Disk Defragmentation Software 8.6/10 Paid ✓ 3 of 3 features Visit UltraDefrag

vs

Auslogics Disk Defrag #5 in Disk Defragmentation Software 8.4/10 Free plan Free plan✓ 3 of 3 features Visit Auslogics

• UltraDefrag fits best

  Windows users needing portable and CLI tools

• Auslogics Disk Defrag fits best

  Free HDD defragmentation with advanced controls

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Side by side

Feature	UltraDefrag 8.6/10 Visit ↗	Auslogics Disk Defrag 8.4/10 Visit ↗
At a glance
Editor score	8.6	8.4
Ranking	#4 in Disk Defragmentation Software	#5 in Disk Defragmentation Software
Best for	Windows users needing portable and CLI tools	Free HDD defragmentation with advanced controls
Pricing model	Paid	Free plan + paid
Starting price	—	—
Free plan	—	✓ (best)
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows	Windows
Support	Email, Docs · 24/7	Email, Tickets, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features UltraDefrag 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
Pros	Supports HDDs and SSDs, including TRIM for SSDs Offers scheduled, idle, boot-time, file-level, and CLI operations Includes portable tools and SMART disk health monitoring	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
Cons	Paid software with no free plan Windows-only platform support Standard licensing covers up to 3 computers	Windows-only availability limits cross-platform use Designed for HDDs rather than SSD defragmentation Advanced optimization and repair features are in Pro
Our verdict	UltraDefrag is disk defragmentation and optimization software for Windows computers and Windows Server systems. It is suited to users who need more control than basic drive maintenance provides, including scheduled or idle automation,… 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

• UltraDefrag — where it wins

  • Supports HDDs and SSDs, including TRIM for SSDs
  • Offers scheduled, idle, boot-time, file-level, and CLI operations
  • Includes portable tools and SMART disk health monitoring

  Where it doesn't

  • Paid software with no free plan
  • Windows-only platform support
  • Standard licensing covers up to 3 computers

• 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

• UltraDefrag8.6/10 · Paid

  A Windows-focused optimizer with automation, boot-time jobs, CLI access, and portable tools.

  Visit UltraDefragFull verdict →
• Auslogics Disk Defrag8.4/10 · Free plan

  A Windows HDD defragmenter with analysis, scheduling, and boot-time tools.

  Visit AuslogicsFull verdict →