Software that can be used as an alternative to Disk Defrag:
  • 1958 votes
    Same quality and features as paid defragmenter, no cost forever.
    • Freeware
    • Windows (all)
  • 50 votes
    Defrag Your Drive - Avoid Fatal System Failures and Speed Up Your Computer
    • Freeware
    • Windows XP/Vista/7
  • 12 votes
    Piriform, the company that brought you CCleaner and Recuva, now brings you a file defragmentation tool.
    • Freeware
    • Windows (all)
  • 16 votes
    UltraDefrag is powerful Open Source defragmentation tool for Windows NT.
    • Freeware
    • Windows (all)