Best Defragger Alternatives in 2026
Updated
20 platforms from disk defragmentation software ranked against Defragger on the same published basis.
- 1Defragger vs IObit Uninstaller
- 2Defragger vs Auslogics Driver Updater
- 3Defragger vs Btrfsmaintenance
- 5Defragger vs Disk SpeedUp
- 6Defragger vs e4defrag
- 7Defragger vs Puran Defrag
- 8Defragger vs WinContig
- 9Defragger vs IObit Smart Defrag
- 10Defragger vs O&O AppBuster
- 11Defragger vs DiskTuna
- 12Defragger vs DymaxIO
- 13Defragger vs Defraginator
- 14Defragger vs Microsoft Quick Assist
- 15Defragger vs Shake
- 16Defragger vs UltimateDefrag 6
- 17Defragger vs UltraDefrag
- 18Defragger vs Windows Backup
- 19Defragger vs Autoruns
- 20Defragger vs O&O Defrag
- 21Defragger vs FreeDOS Defrag
Defragger 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 |
| 5 | Disk SpeedUp | 5.7 | Free plan | Free | Windows |
| 6 | e4defrag | 5.7 | Free plan | Free | Linux |
| 7 | Puran Defrag | 5.7 | Free plan | Free | Windows |
| 8 | WinContig | 5.7 | Free plan | Free | Windows |
| 9 | IObit Smart Defrag | 5.6 | Free plan | $1.67/mo | Windows |
| 10 | O&O AppBuster | 5.4 | No | — | Windows |
| 11 | DiskTuna | 5.3 | No | — | Windows |
| 12 | DymaxIO | 5.3 | No | $5.75/mo | Windows |
| 13 | Defraginator | 5.2 | No | — | Linux, Mac, Windows |
| 14 | Microsoft Quick Assist | 5.2 | No | — | Mac, Web, Windows |
| 15 | Shake | 5.2 | No | — | Linux |
| 16 | UltimateDefrag 6 | 5.2 | No | — | Windows |
| 17 | UltraDefrag | 5.2 | No | — | Windows |
| 18 | Windows Backup | 5.1 | No | — | Windows |
| 19 | Autoruns | 5.0 | No | — | — |
| 20 | O&O Defrag | 5.0 | No | — | Windows |
| 21 | FreeDOS Defrag | 4.7 | Free plan | Free | self-hosted |
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Questions about Defragger alternatives
What is the best alternative to Defragger?
IObit Uninstaller, number 1 in disk defragmentation software with a score of 6.0 out of 10. The others here: Auslogics Driver Updater, Btrfsmaintenance, Disk SpeedUp and 16 more.
What is the best free alternative to Defragger?
IObit Uninstaller is the best-ranked alternative with a free plan. 9 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.