Cycle through solid colors to spot dead or stuck pixels on your screen. The dead pixel test needs no software install.
Switch between solid colors and look for pixels that stay dark or wrong-colored — those may be stuck or dead pixels. Use full-screen mode (F11) for the most accurate check.
Your data is processed entirely in your browser. Nothing is uploaded to any server.
Yes, Offline ToolHub tools are free and private.
No. Processing happens locally in your browser.
No account is needed.
Once loaded, Dead Pixel Test runs entirely on your device.