Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video! Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and then display the result. Disk Speed Test will continue to test writes and reads from your disk so you can evaluate both performance and readability over time.

What’s New

Version 3.3

Add support for M1 powered Macs.

Ratings and Reviews

3.0 out of 5
65 Ratings

65 Ratings

diamsss ,

Thank you. It is useful

All looks good. A few things could be considered to improve.
1) - The dashboard NOT showing the target disk drive, so you never know what are you testing
2) - Choose the target drive need to be easy option directly on a dashboard, not thru the setting
3) - The RED button color is not obvious indication the test is going. You have to change note inside the button from start test to test is continuously on or something appropriate

Once again, thank you for your software ,

Fix for crash on launch...

1. Open Finder.
2. Go to Applications folder.
3. Right click on Blackmagic Disk Speed Test and click Show Package Contents
4. Open Contents folder and then MacOS folder.
5. Open the DiskSpeedTest inside.


Perihelion88 ,

Crash on launch

The whole point of publishing in the Mac App store is to make the install and run process simple. This application now crashes on launch unless you do what suggests below which does work. Get it together Black Magic!

App Privacy

The developer, Blackmagic Design Inc, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.