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Head-to-head · Disk Defragmentation Software

Disk SpeedUp vs Auslogics Disk Defrag

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Disk SpeedUp #2 in Disk Defragmentation Software 9.2/10 Free plan Free plan✓ 3 of 3 features Visit Disk SpeedUp
Auslogics Disk Defrag #5 in Disk Defragmentation Software 8.4/10 Free plan Free plan✓ 3 of 3 features Visit Auslogics

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

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

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
Pros
  • Supports both HDD and SSD optimization
  • Includes scheduled, automatic, and boot-time defragmentation
  • Offers exclusion lists and multiple optimization modes
  • 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
  • Runs on Windows systems only
  • Not open source
  • Focused on disk defragmentation and optimization
  • Windows-only availability limits cross-platform use
  • Designed for HDDs rather than SSD defragmentation
  • Advanced optimization and repair features are in Pro
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 →
  1. Disk SpeedUpDisk Defragmentation Software 9.2Free plan
  2. Auslogics Disk DefragDisk Defragmentation Software 8.4Free plan

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

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update