Screen Resolution Detector
Detect your screen resolution, viewport size, device pixel ratio, color depth, and orientation.
How to Use Screen Resolution Detector
The Screen Resolution Detector is a free online tool that instantly shows your current screen and viewport dimensions, device pixel ratio, color depth, and screen orientation. The information updates in real-time when you resize your browser window or rotate your device. Whether you are a web developer testing responsive designs, checking if your display supports high-DPI content, verifying viewport dimensions for CSS breakpoints, or simply curious about your screen specifications, this tool provides all the information you need without installing any software. Essential for front-end developers, QA testers, and designers working with responsive layouts.
Step-by-Step Instructions
- Open the tool to see your screen information automatically detected
- Resize your browser window to see viewport dimensions update in real-time
- Check device pixel ratio for retina/HiDPI display information
- Copy all screen information using the copy button
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