UltraDefrag

[Vortex]

UltraDefrag is a powerful Open Source Defragmentation tool for the Windows Platform. It can defragment any system files including registry hives and paging file. Also one of the main goals of UltraDefrag is doing the job as fast and reliable as possible.

FEATURES

Driver:
Currently FAT, exFAT and NTFS are supported. (enhanced in 5.0.0)
Defragmentation of files and folders including system files and file system meta files. (enhanced in 5.0.0)
Full optimization of the drive, which processes all files despite of their fragmentation. (enhanced in 5.0.0)
Quick optimization of the drive, which mainly processes fragmented files. (new in 5.0.0)
MFT optimization, which processes the MFT only. (new in 5.0.0)
Filtering of files to process by name, fragment count and size.
User defined log file creation, which highly simplifies reporting bugs. (new in 5.0.0)
Drives needed to be checked by CHKDSK are excluded. (new in 5.0.0)


Graphical User Interface:
Graphical display of the drives cluster map. (enhanced in 5.0.0)
Modern design with menus and tool bar. (new in 5.0.0)
The hight of the drives list can be adjusted. (new in 5.0.0)
The current progress and all important information are displayed in the drives list. (enhanced in 5.0.0)
A final action can be specified to be executed after processing the drives. (new in 5.0.0)
Color coding of the usage of the cluster map. (enhanced in 5.0.0)
Localization can be done by the user or by one of the 55 included language packages. (enhanced in 5.0.0)


Command Line Tool:
Useful for automation through scheduled tasks or batch scripts.
Integrated into Explorer's context menu.
Specify options through command line arguments or environment variables. (enhanced in 5.0.0)
On demand, display of the graphical cluster map.
Read more...
Boot Time Interface:
Useful to process locked system files. (enhanced in 5.0.0)
An interactive mode is available too. (enhanced in 5.0.0)

You can get also the portable versions :

http://ultradefrag.sourceforge.net/en/index.html

[Ghostly]

Seems great, I've been using jkdefrag/MyDefrag for ages, but this one can defragment the page file which is a plus.