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Auslogics Disk DefragUltraDefrag
Free

Disk Defrag is free; the separate Disk Defrag Ultimate edition is paid.

 Paid

Current versions are sold to registered users.

Windows Windows
  • Free alternative to the built-in Windows defragmenter
  • From a long-running Windows utilities developer
  • Portable edition available
  • Defragments individual files and folders
  • Windows only
  • Defragmenting brings little benefit on SSDs
  • Windows only
  • Current versions are commercial
Downloadable app Downloadable app
Closed source Closed source
License not stated License not stated
No account needed Not stated if an account is needed
Works offline Works offline

Checked October 1, 2026

Checked September 24, 2026

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