CrystalDiskInfo is a tool whose task is to monitor the status of hard drives installed in the computer, as well as to provide detailed information on individual parameters of their operation. The program uses S.M.A.R.T. technology and by analyzing many parameters of the device evaluates its condition, also being able to alert the user about a possible failure.

In addition to basic information about software version, serial number, interface, transfer mode, number of partitions, buffer size, speed, number of drive turns on, operating time and temperature, it gives you access to many more advanced data. These include the frequency of errors, the time it takes to "unbolt" the drive, the number of start/stop cycles, the number of calibration attempts and unstable sectors, and many other information that is very important in assessing the condition of the device. The advantage of CrystalDiskInfo is a modest, but very user-friendly interface, available in many language versions (including Polish).

In addition, it supports graphic motifs.