What does
Smart Defrag 3 do?
Smart Defrag 3 is a FREE, light, and stable disk defragment tool designed for maximum hard drive performance. Based on IObit latest disk defrag engine and "Boot Time Disk Defrag" technology, Smart Defrag 3 not only provides defragmentation, like any typical disk defragmenter can do, but also intelligently streamlines your files based on using frequency, thus accelerating disk speed for faster data access! With the unique Deep Analyze technology, it smartly clean junk files before defragmentation to save more disk space for you. Being the first Disk Defragmenter that fully supports Windows 8/8.1 Metro Apps, Smart Defrag 3 works fast, automatically and quietly in the background and is a disk defragmenter suitable for large hard drives.

Media Review

"IObit Smart Defrag is a free disk defragmenter and worth investigating."

"IObit Smart Defrag is a free disk defrag tool and worth investigating. It's also rather fast. The answer is to defragment your drive. This will move files in to one continuous block and rearrange the space so that it ends up located in one big block of space. It means your files and applications launch much more quickly."
- pcmag.co.uk
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User Review

"Smart defrag is a very well behaved disk defrag software."


Amnon
2012
"Smart defrag is a very well behaved disk defrag software, operating in the background whenever computer is idle so that you hardly notice it. As a result: drives are permanently defragmented allowing rapid access and less wear and tear. Smart defrag is the best Free disk defragmenter I've ever used and I'll definitely recommend it to my family and friends!"

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