Screen Resolution Checker: Detect Your Display Properties
Knowing your screen resolution and display properties is essential for web developers testing responsive designs, graphic designers creating assets at the right dimensions, and users troubleshooting display issues. Our screen resolution checker detects all key display properties of your current device in real time.
The tool reports your full screen resolution (the total pixels your monitor can display), viewport size (the browser window area available for web content), device pixel ratio (how many physical pixels correspond to one CSS pixel on high-DPI displays), color depth (the number of bits used per pixel for color), screen orientation, and touch capability.
Device pixel ratio (DPR) is particularly important for modern web development. A DPR of 2 means the device uses 4 physical pixels for every CSS pixel (2x width and 2x height), which is common on Retina displays and modern smartphones. Understanding DPR helps developers serve appropriately sized images and ensure crisp text rendering on high-resolution screens.
The viewport dimensions update in real time as you resize your browser window, making this tool perfect for testing responsive breakpoints. Web developers can use these values to verify that their CSS media queries trigger at the correct viewport widths, ensuring their designs adapt properly to different screen sizes.