Download JkDefrag

JkDefrag is a fully free-of-charge disc defragmenter, that is to say with general public license, that will enable you to enhance your computer performance.

It is fully automatic and very easy to use. It is fast and has two optimization strategies.

Jkdefrag can also handle USB devices. It includes a Windows version, a command-line version, screensaver, DLL library and 64-bit Windows version.