Freedom251
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
Vendor dashboard
No. 22 of 22 ·Disk Defragmentation Software

O&O Defrag

Windows

Visit site Alternatives

Freedom report

No signalScore 4.8

  • Free tierNo free tier on record
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedThinly documented

O&O Defrag is ranked #22 of 22 in disk defragmentation software on Freedom251. It runs on Windows. There is no free plan.

O&O Defrag plans and pricing

All plans
Professional Edition $49.95 once 1 PC oo-software.com · 20 Sept 2026

Compared on disk defragmentation software

Free plan
No
Paid from
49.95 one-time
Drive types
both
Scheduled optimization
Yes
Automatic optimization
Yes
Boot-time optimization
Yes
Filesystem support
multi-filesystem

Best O&O Defrag alternatives

See all 20
One bar IObit Uninstaller Free tier No. 1$1.23/mo6.4 One bar Auslogics Driver Updater Free tier No. 2Free6.3 One bar Btrfsmaintenance Free tier No. 3Free6.3 One bar Disk SpeedUp Free tier No. 4Free6.3 One bar e4defrag Free tier No. 5Free6.3 One bar Puran Defrag Free tier No. 6Free6.3