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.
Browsers report CSS pixels (often scaled by the OS). Divide by the device pixel ratio to get approximate physical pixels.
It’s the ratio between physical pixels and CSS pixels (e.g., 2 on Retina displays). A higher number means sharper text and images.
Yes! It reads the same APIs on mobile browsers, making it useful for mobile viewport debugging.