Smart Defrag is such a FREE disk defrag tool that provides extremely fast and efficient defragmentation to your hard drives intelligently for faster file loading and high disk performance.

Extremely Fast and Efficient Defragmentation

• Using IObit's latest disk defrag engine and the new "Boot Time Disk Defrag" technology, Smart Defrag has not only the world's fastest defragmenting speed but also the most advanced defragmenting ability. It's been specially designed for modern, large hard drives including SSD(solid state drive) defrag, which eliminates the long waiting time.

Designed for Top Disk Performance

• Smart Defrag doesn't just provide simple defragmentation. It also streamlines your file system, places the frequently used files and directories into the fastest area of the disk, enabling your computer to run at top speed with the most stability.

Always-on Automatic Defragment

• Smart Defrag works automatically and quietly in the background, so it continually and constantly keeps your computer fragment-free.

"Boot Time Disk Defrag" Technology

• Smart Defrag is using a new "Boot Time Disk Defrag" technology which allows you to defrag files during the system boot process, while these files cannot be defragged or are not safe to move after the system is already boot-up.