FreeDOS Defrag vs UltraDefrag
FreeDOS Defrag
help.fdos.org
UltraDefrag
ultradefrag.netSide by side
| Figure | FreeDOS Defrag | UltraDefrag |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 2 |
| Spec score · Disk Defragmentation Software | 7.4 (#10) | 6.8 (#17) |
| Founded | 1994 | 2007 |
| Purpose | DEFRAG optimizes file loading times from a disk by moving file fragments together. | UltraDefrag 15 is a disk defragmenter intended to improve PC performance by reassembling fragmented files. |
Plans
In their own words
FreeDOS Defrag
FreeDOS Defrag, or DEFRAG, is a free, open-source DOS utility that rearranges file fragments to improve loading times from a specified drive. It offers a menu interface and a command-line mode selected with /C. Full optimization with /F places files at the beginning of the disk without gaps, while /U unfragments files but may leave gaps. The /S option sorts files by name, extension, date and time, or size, with descending order available. Other options support quick defragmentation, rebooting after optimization, and exiting when work finishes. Its help recommends occasional use or running it after installing larger programs or creating many small files. Documented exit codes cover insufficient disk space, read, write, FAT-allocation, and memory errors. DEFRAG runs in the FreeDOS environment, whose 1.4 distribution includes LiveCD, USB, LegacyCD, and floppy editions.
UltraDefrag
UltraDefrag has no write-up on Specifiction yet; its figures are above.