Terms of use

Free to use

CheckYourDisplay is free for personal and commercial use. You do not need an account, and you may link to any page on the site.

No warranty

The tools are provided as they are, without any warranty. They are intended for basic testing and troubleshooting. They cannot reliably diagnose every hardware problem, and they cannot physically repair damaged hardware. Results depend on your device, browser, settings, and environment, and should not be treated as a professional measurement.

Use at your own risk

• The Stuck Pixel Fixer and some Screen Flicker Test patterns flash rapidly. Do not use them if you are sensitive to flashing lights or have a history of photosensitive seizures.
• Some test patterns use fine, high-contrast stripes or checkerboards. If a pattern is uncomfortable to look at, look away and stop.
• The audio tools can produce loud tones and noise. Lower your volume before starting, especially with headphones, and stop if anything is uncomfortable.
• Unplug a wet device before you use the Speaker Cleaner, and do not use it on a phone that was submerged, or on earbuds, headphones or a laptop. Keep the volume moderate, and stop if a speaker rattles, buzzes or gets warm.
• The Vibration Test can move a phone across a smooth surface. Keep the phone away from the edge of a table.
• Do not press on, rub, or apply heat to a screen in an attempt to fix pixels. That can cause permanent damage.
• The Screen Cleaner and the Keyboard Cleaner clean nothing. They ignore input only on their own page, and system shortcuts, gestures and hardware buttons can still act. The Mouse DPI Test hides the pointer while it measures; press Esc to get it back. Use a damp cloth only on a device that is turned off or unplugged, and never spray liquid onto a screen or keyboard.
• Avoid leaving a still test pattern on an OLED screen for hours; step through the patterns instead.

To the fullest extent permitted by law, CheckYourDisplay is not liable for any loss or damage arising from the use of this site.

Changes

These terms may be updated from time to time. The current version is always on this page.

Last updated: 14 September 2026