CrystalDiskMark is a utility designed to test the performance of hard drives on Windows computers. The program works by reading the file system depending on the volumes. The developer of the program is Noriyuki Miyazaki from Crystal Dew World, which is based in Japan. Use the link on this page to download CrystalDiskMark official version free.

The program is suitable for Windows 7, 8, 10, 11, Vista, XP, size 32 bit, 64 bit.

Free program CrystalDiskMark is an application that makes a comparative analysis of the performance of drives, such as: hard drives of your computer or tablet, HDD, SSD and USB drives, NAS network storage. The program works according to the following principle: after starting the utility, a file of a certain size is written to the disk several times. With the help of CrystalDiskMark the speed and the reading speed of the file are measured. Based on that data, the program calculates the average speed and displays the final result.

The utility can be used to verify the manufacturer's claimed speed before buying a new disk or memory card for your computer, or to test media you already own. The final result can be viewed in terms of MB/s, GB/s, IOPS and microseconds.

Running tests:

  • Seq Q32T1. This test is used to calculate file copying speeds for files of size 500MB or more.
  • 4KiB Q8T8. The test shows how fast the operating system cache is processed.
  • 4KiB Q32T1. This test is used to test the disk for writing and reading blocks of data of a few kilobytes.
  • 4KiB Q1T1. The test is used to test the disk where the system is installed.

How to download CrystallDiskMark for Windows

Before you can use the capabilities of the program, you need to download and install it on your computer. Download the file, then run it. In the window that will open, select the English language. Next, accept the license agreement and select the folder to install the program. After these steps, open the program and start the diagnostics.


CrystallDiskMark is a utility designed to test your hard drive. Many users have expressed their positive feedback about this application. In addition to the official version, the company has also released a special edition of this utility, the Shizuku Edition. This edition differs from the official version by its design, it is made in anime style.