IObit Smart Defrag is one of the best free tools designed to defragment system partitions. The algorithm responsible for defragmentation has been designed in such a way that the time of data optimization on modern and large disks is as short as possible, taking into account the quickest possible access to data. According to the information provided by the manufacturer, the application is ahead of such products as Defraggler, JKDefrag, Auslogics DiskDefrag, Diskeeper Pro or the built-in tool in Windows.

In addition to statistics, IObit Smart Defrag also features the ability to activate automatic defragmentation of the system in the background (e.g. when the computer is resting) and the function to optimize the location of files. The authors also thought that IObit Smart Defrag offers the possibility of planning disk optimization dates, so that the user can control the systematic care for the condition of the HDD.

There was no shortage of options for defragmenting the boot space and optimizing the drive for games.