A D V E R T I S E M E N T

Same Quality and Features as Paid Defragmenter, No Cost Forever.


What is the fragmentation status of your hard disk?

-- You no longer need to guess... this freeware will give you a complete diagnosis of your current hard drives, then defragment and speed up disk performance in minutes.

Tried Windows's default defragmenter and others?

-- Now download the most efficient free defragment program with automation! Compare it with your defragmenter

Start Free Defragment!

"It's hard to stand out in the crowded field of defraggers, but Smart Defrag is able to do so with an unexpected twist."

- 5 stars, CNET Download.com, Sep 2008



"Smart Defrag is a free defragment tool and worth investigating. It’s also rather fast."

- Editor’s Review, Feb 2007




Smart Defrag

The World’s Most Efficient Defragmenter What’s the primary cause of slow/unstable PC performance? It’s disk fragmentation. Smart Defrag helps defragment your hard drives more efficiently than any other product on the market –– free or not.

This powerful, award-winning free defragmenter is 100% safe and clean with no adware, spyware, or viruses.

Comparison Sheet


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Key Benefits 　　

Extremely Easy to Use

Install it and forget it. This powerful, free defragmenter works continuously, automatically and quietly in the background on your PC. Its intuitive interface makes Smart Defrag the ideal utility for complete computer dummies.

Exceptionally Efficient Defragmentation

Smart Defrag has the world’s fastest defragmenting engine. It’s been specially designed for modern, large hard drives, so it eliminates long waiting times.

Optimize Disk Performance

Smart Defrag doesn’t just use 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 to Work Automatically

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

Data Safe and Reliability Guaranteed

Smart Defrag uses the commercial-level standard to move data and does not damage any file in your disk. Besides, unlike other "Automated" Defragmenters, Smart Defrag does NOT constantly perform analysis and defragment, which does damage your hard drive and shorten its life. Smart Defrag has a "Safe Intelligence" technology that can assure the health of your disk by deciding When and How to start defragmentation.

Free Defragmenter Forever

Smart Defrag is 100% freeware. Download, use, and update it absolutely free for your personal computers, business or enterprise servers –– it won’t cost you a penny.


Designed for Windows Vista, XP, 2000. and Windows 7

Download FREEWARE Now

How does it work 　　


Install it and forget it: Install Smart Defrag, begin to defragment your hard drives in a manual way, or just minimize it to the system tray.