Monitor Screen Test Online - Check Pixels, Color and Refresh Rate
Run a practical desktop monitor test for dead pixels, resolution, refresh rate, ghosting, contrast and color accuracy in your browser. Confirm native resolution and refresh rate first, then test pixels, greyscale, motion, contrast and color without changing the monitor preset between patterns.
How to test this display step by step
What to look for during a Monitor Screen Test
Inspect the center, corners and edges on every pattern. Repeat suspicious results at normal brightness with automatic display adjustments off. A defect visible across colors, apps and inputs is more likely a panel issue.
Panel-specific notes
A cable or GPU output limit can look like a panel defect, so repeat refresh and color checks on another input when possible.
Before contacting support
Repeat the result at native resolution, normal brightness and a second input or browser. Record the model, firmware, power state and a photo from normal viewing distance.
How to interpret a suspicious result
Repeat the pattern at native resolution and normal viewing distance. A dot fixed across white, black and RGB fields suggests a pixel defect; broad glow or tint that changes with angle suggests uniformity. For motion issues, compare another refresh rate and cable before judging the panel.