Disk SpeedUp vs O&O Defrag

Disk SpeedUp9.2Visit O&O Defrag8.8Visit

Higher score Disk SpeedUp #2 in Disk Defragmentation Software 9.2/10 Free plan Free plan✓ 3 of 3 features Visit Disk SpeedUp

vs

O&O Defrag #3 in Disk Defragmentation Software 8.8/10 30-day trial Free trial✓ 3 of 3 features Visit O&O Defrag

• Disk SpeedUp fits best

  Free Windows defragmentation and SSD optimization

• O&O Defrag fits best

  Paid Windows optimization with health checks

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Side by side

Feature	Disk SpeedUp 9.2/10 Visit ↗	O&O Defrag 8.8/10 Visit ↗
At a glance
Editor score	9.2	8.8
Ranking	#2 in Disk Defragmentation Software	#3 in Disk Defragmentation Software
Best for	Free Windows defragmentation and SSD optimization	Paid Windows optimization with health checks
Pricing model	Free	Paid
Starting price	Free plan	$49.95/device one-time
Free plan	✓ (best)	—
Free trial	—	30 days
Deployment	Desktop	Desktop
Platforms	Windows	Windows
Support	Email, Docs	Email, Phone, Docs
Built for	Solo, Small business	Solo, Small business, Mid-market, Enterprise
Features Disk SpeedUp 3/3 · O&O Defrag 3/3
Scheduled optimization	✓	✓
Automatic optimization	✓	✓
Boot-time optimization	✓	✓
Specs
Drive types	Both	Both
Filesystem support	Multi-filesystem	Multi-filesystem
Maximum drive count	Not checked yet	Not checked yet
Our review
Pros	Supports both HDD and SSD optimization Includes scheduled, automatic, and boot-time defragmentation Offers exclusion lists and multiple optimization modes	Supports HDD defragmentation plus SSD and NVMe optimization Includes scheduling, background automation, and boot-time jobs Adds health monitoring, benchmarking, repair, and disk cleanup
Cons	Runs on Windows systems only Not open source Focused on disk defragmentation and optimization	Windows-only software No free plan Professional Edition covers one PC
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 →	O&O Defrag is Windows software for analyzing and optimizing storage drives. Professional Edition is aimed at home users and individual workstations, covering traditional hard disks alongside SSD and NVMe storage. Its scope extends beyond… 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

• O&O Defrag — where it wins

  • Supports HDD defragmentation plus SSD and NVMe optimization
  • Includes scheduling, background automation, and boot-time jobs
  • Adds health monitoring, benchmarking, repair, and disk cleanup

  Where it doesn't

  • Windows-only software
  • No free plan
  • Professional Edition covers one PC

• Disk SpeedUp9.2/10 · Free plan

  A free Windows tool for HDD and SSD analysis, defragmentation, and optimization.

  Visit Disk SpeedUpFull verdict →
• O&O Defrag8.8/10 · 30-day trial

  A paid Windows optimizer combining drive maintenance, monitoring, and automation.

  Visit O&O DefragFull verdict →