Comparison of defragmentation software
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The following is a comparison of notable file system defragmentation software:
| Program | Developer | License | Supported file systems | Supported platforms | GUI | CLI | Script | Scheduler | Boot time | Auto defrag when idle | Stable release |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Auslogics Disk Defrag | Auslogics | Freeware | FAT16, FAT32, NTFS | Windows XP and later | Yes | Yes | Yes | Yes | Yes | 10.2.0.1 (Free), 4.11.0.7 (Ultimate) (January 26, 2022(2022-01-26) (Free), March 3, 2020(2020-03-03) (Ultimate)) [±] | |
| AVG PC TuneUp | AVG Technologies | Trialware | 2015 (v15.0.1001.238) (November 30, 2014) | ||||||||
| Contig | Microsoft | Freeware | NTFS | Windows XP and later; Windows Server 2003 and later | No | Yes | No | Yes, with Windows Task Scheduler | No | Yes, with Windows Task Scheduler | 1.8 (July 4, 2016) |
| Defraggler | Piriform | Freeware | FAT32, NTFS, exFAT, ReFS | Windows XP and later | Yes | Yes | No | Yes, with Windows Task Scheduler | Yes | Yes, with Windows Task Scheduler | 2.22.995 (May 2, 2018(2018-05-02)) [±] |
| Drive Optimizer (formerly Disk Defragmenter) | Microsoft | Bundled with Microsoft Windows | FAT16, FAT32, NTFS, ReFS | Windows 2000 and later; Windows 95 and later | Yes | Yes | Yes | Yes, with Windows Task Scheduler | No | No | Same as Windows |
| Diskeeper | Condusiv Technologies | Discontinued (formerly trialware | FAT16, FAT32, NTFS | Windows XP and later | Yes | Yes | Yes | Yes | Yes | Yes | 2020 (20.0.1302) (March 23, 2020(2020-03-23)) [±] |
| JkDefrag | Jeroen Kessels | GNU GPL | FAT & NTFS | Windows 2000, Windows XP, Windows Vista | Yes | Yes | 3.36.0.2 / August 31, 2008 | ||||
| O&O Defrag | O&O Software | Trialware | FAT16, FAT32, NTFS, exFAT, ReFS | Windows NT 4.0, 2000, XP, Vista, 7, 8.x, 10, 11. Server 2003, 2008, 2012, 2016, 2019, 2022 | Yes | Yes | Yes | Yes | Yes | Yes | 27.0.8038 (September 12, 2023) [±] |
| PageDefrag | Microsoft | Freeware | FAT16, FAT32, NTFS | Windows 2000, XP | No | No | No | No | Yes | No | |
| PerfectDisk | Raxco | Discontinued (formerly trialware | FAT16, FAT32, exFAT, NTFS, ReFS* and CSVFS | Windows XP SP3 or higher (x86, x64), Windows 10, Windows Server 2003 SP1, Windows Server 2019 | Yes | Enterprise Console edition only | Yes | Yes | Yes | PerfectDisk 14 Build 900 (2021) | |
| UltimateDefrag | DiskTrix | Trialware | FAT32, NTFS | Windows XP and later | Yes | Yes | Yes | Yes | 6.1.2.0 (28 July 2021) | ||
| UltraDefrag | Dmitri Arkhangelski, Justin Dearing, Sayem Chaklader, Stefan Pendl | Commercial software (8.0+) / GNU GPL (7.1.x) | FAT12, FAT16, FAT32, NTFS, exFAT, ReFS | Windows NT 4.0 and later | Yes | Yes | Yes | Yes, with Windows Task Scheduler | Yes | Yes, with Windows Task Scheduler | 15.0.0 (January 24, 2026; 2 months ago(2026-01-24)) [±], Open source version discontinued |
| Vopt | GoldenBow (or DataTuna) | Discontinued (formerly freeware) | FAT32, NTFS | Windows 2000 and later | Yes | Yes | 9.21.0001 (November 14, 2010(2010-11-14)) [±] | ||||
| Program | Developer | License | Supported file systems | Supported platforms | GUI | CLI | Script | Scheduler | Boot time | Auto defrag when idle | Stable release |