Screen Resolution Info
Instantly see your device’s screen resolution, browser viewport size, device pixel ratio, and color depth. No clicks, no uploads — the values are pulled directly from your browser and update live whenever you resize the window. Perfect for checking responsive breakpoints, diagnosing HiDPI scaling, or simply learning about your display hardware.
How to Use
- 1Open the “Screen Resolution Info” tool — all metrics are displayed immediately.
- 2Resize your browser window to watch viewport width/height update in real time.
- 3Copy any value by hovering over it and clicking the copy button, or use the “Copy All” button to grab the full report.
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Frequently Asked Questions
Why does the screen resolution not match my monitor’s native resolution?
Browsers report CSS pixels (often scaled by the OS). Divide by the device pixel ratio to get approximate physical pixels.
What is device pixel ratio?
It’s the ratio between physical pixels and CSS pixels (e.g., 2 on Retina displays). A higher number means sharper text and images.
Does this tool work on mobile?
Yes! It reads the same APIs on mobile browsers, making it useful for mobile viewport debugging.