Pixel Test Online
Cycle through full screen colors to find defects.
Ready to Test?
Use this tool to check for both dead and stuck pixels across the full RGB spectrum and high-contrast black/white backgrounds.
Press ESC to exit anytime.
What to look for?
Dead Pixels
Look for black spots on a white or colored background. These pixels are effectively "off" and don't light up.
Stuck Pixels
Look for bright dots (red, green, blue) on a black background. These are pixels "stuck" on a specific color.
What is Pixel Test Online?
The Pixel Test Online is a specialized utility designed to test and verify the performance of your hardware. Whether you are troubleshooting a defect, calibrating your device, or simply curious about your specs, this tool provides real-time feedback directly in your browser.
Regularly testing your devices ensures they are functioning optimally. This tool runs locally on your machine, meaning your data remains private and the response is instant.
How to use Pixel Test Online
- Step 1: Activate the tool using the start button or on-screen controls.
- Step 2: Follow the specific visual cues or prompts displayed.
- Step 3: Review the results to determine if your device is functioning correctly.
Frequently Asked Questions
Is this tool free?
Yes, this tool is completely free to use online without any software installation.
Does it work on mobile?
Most of our tools are responsive and work on mobile devices, though some hardware tests (like mouse specific features) may vary.