Contact Us
Questions about dead pixel testing? Need support? We're here to help.
Our Location
WhiteScreen Digital Services
Online Support Team
Response Time
Mon–Fri, 9AM–6PM EST
Average response: 24h
Technical Support
Pixel test bugs, tool issues, feature requests.
How do I know if I have a dead or stuck pixel?
Use our color test buttons (White, Black, Red, Green, Blue) in fullscreen mode. Dead pixels appear as black spots always; stuck pixels show a single color.
Can you fix my dead pixel remotely?
No — dead pixels are hardware issues. However, our rapid color cycle tool can help with stuck pixels.
Is this tool free to use?
Yes! All pixel test features are completely free. No registration required.
Do you store my screen data?
No. The pixel test runs entirely in your browser. We never capture or store your screen content.
Why can't I go fullscreen?
Some browsers require user interaction. Click any color button — the tool requests fullscreen automatically.
How do I report a bug?
Use this contact form with category "Report a Bug" and include your browser and device details.