Display Tools
Check pixels, refresh timing, motion clarity, color patterns, resolution, and PPI.
Before you begin
Subjective display checks are clearly separated from browser timing estimates.
Display
Dead Pixel Test
Inspect the screen manually with borderless full-screen solid colors.
Display
Refresh Rate Test
Estimate the browser window refresh rate and frame-time variation.
Display
Motion Blur Test
Observe subjective motion clarity with an original adjustable moving target.
Display
Screen Color Test
Inspect gradients, gray steps, levels, RGB blocks, and a basic gamma pattern.
Display
Screen Resolution & PPI Calculator
View browser-reported screen values and estimate PPI from physical size.
Measurement honesty
What the browser can tell you
These tools report browser events, exposed settings, local measurements, or your own observations. They do not silently convert those signals into a hardware health score.
Each tool page lists its method, limitations, privacy behavior, and the most useful next troubleshooting step.