A large amount of defrag tools that are available on the market only allow you to defrag an entire drive.  Defraggler lets you specify one or more files, folders, or the whole drive to defragment.  The software does this by using the exact same techniques that Windows uses. So, using Defraggler is just as safe for your files as using Windows!  

You can give your hard drive a quick touch-up with Quick Defrag and you can also organize empty disk space to further prevent fragmentation.    There is Full Windows OS and Multi-lingual support, in fact defraggler supports 37 major languages!

Defraggler Updated

The latest version of Defraggler 2.18.945 has a number of changes, including:  Added Disk Performance graphs to Statistics tab.  Added Quick Optimize for SSD.  Added ability to view information for different drives when an operation is in progress.  Improved Health tab loading speed.  Added new scriptable /UPDATE parameter for background updates. (Defraggler Professional only).  Improved detection of files without extensions in File list tab.

This latest version also has some minor GUI improvements and minor bug fixes.

Defraggler

You can download the latest version of defraggler from FileHippo.com

[Images via wikimedia & defragharddisk]