Best UltraDefrag Alternatives in 2026
Updated
20 platforms from disk defragmentation software ranked against UltraDefrag on the same published basis.
- 1UltraDefrag vs IObit Uninstaller
- 2UltraDefrag vs Auslogics Driver Updater
- 3UltraDefrag vs Btrfsmaintenance
- 4UltraDefrag vs Defragger
- 5UltraDefrag vs Disk SpeedUp
- 6UltraDefrag vs e4defrag
- 7UltraDefrag vs FreeDOS Defrag
- 8UltraDefrag vs Puran Defrag
- 9UltraDefrag vs WinContig
- 10UltraDefrag vs xfs_fsr
- 11UltraDefrag vs IObit Smart Defrag
- 12UltraDefrag vs O&O AppBuster
- 13UltraDefrag vs Shake
- 14UltraDefrag vs DiskTuna
- 15UltraDefrag vs DymaxIO
- 16UltraDefrag vs Defraginator
- 17UltraDefrag vs Microsoft Quick Assist
- 18UltraDefrag vs UltimateDefrag 6
- 20UltraDefrag vs Windows Backup
- 21UltraDefrag vs Autoruns
UltraDefrag alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | IObit Uninstaller | 6.0 | Free plan | $1.23/mo | Windows |
| 2 | Auslogics Driver Updater | 5.7 | Free plan | Free | Windows |
| 3 | Btrfsmaintenance | 5.7 | Free plan | Free | Linux, self-hosted |
| 4 | Defragger | 5.7 | Free plan | Free | Linux |
| 5 | Disk SpeedUp | 5.7 | Free plan | Free | Windows |
| 6 | e4defrag | 5.7 | Free plan | Free | Linux |
| 7 | FreeDOS Defrag | 5.7 | Free plan | Free | self-hosted |
| 8 | Puran Defrag | 5.7 | Free plan | Free | Windows |
| 9 | WinContig | 5.7 | Free plan | Free | Windows |
| 10 | xfs_fsr | 5.7 | Free plan | Free | Linux |
| 11 | IObit Smart Defrag | 5.6 | Free plan | $1.67/mo | Windows |
| 12 | O&O AppBuster | 5.4 | No | — | Windows |
| 13 | Shake | 5.4 | No | — | Linux |
| 14 | DiskTuna | 5.3 | No | — | Windows |
| 15 | DymaxIO | 5.3 | No | $5.75/mo | Windows |
| 16 | Defraginator | 5.2 | No | — | Linux, Mac, Windows |
| 17 | Microsoft Quick Assist | 5.2 | No | — | Mac, Web, Windows |
| 18 | UltimateDefrag 6 | 5.2 | No | — | Windows |
| 20 | Windows Backup | 5.1 | No | — | Windows |
| 21 | Autoruns | 5.0 | No | — | — |
Make your platform an alternative to UltraDefrag
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about UltraDefrag alternatives
What is the best alternative to UltraDefrag?
IObit Uninstaller, number 1 in disk defragmentation software with a score of 6.0 out of 10. The others here: Auslogics Driver Updater, Btrfsmaintenance, Defragger and 16 more.
What is the best free alternative to UltraDefrag?
IObit Uninstaller is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.