Screen Resolution Checker

Instantly check your screen resolution, viewport size, device pixel ratio (DPR), color depth, aspect ratio, orientation, total pixels, device type, and approximate screen size. This free Screen Resolution Checker works directly in your browser.

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Your Screen Information

Device Resolution
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Viewport
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Device Pixel Ratio (DPR)
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Color Depth
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Total Pixels
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Aspect Ratio
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Orientation
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Device Type
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Approx Size
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What is a Screen Resolution Checker?

A Screen Resolution Checker is a tool that detects the dimensions of your display in pixels. It helps developers, designers, marketers, and website owners understand how their websites appear on different devices and screen sizes.

Why Check Your Screen Resolution?

Knowing your screen resolution helps with responsive design testing, UI optimization, image preparation, video production, graphic design, gaming setup verification, and troubleshooting display issues.

Screen Resolution vs Viewport Size

Screen resolution refers to the total pixel dimensions of your display, while viewport size represents the visible browser area available for rendering web pages. These values often differ because browser toolbars and operating system interfaces consume space.

Frequently Asked Questions

What is screen resolution?
Screen resolution is the number of pixels displayed horizontally and vertically on a screen.
What is DPR?
DPR (Device Pixel Ratio) compares physical device pixels to CSS pixels used by browsers.
Why is viewport different from screen resolution?
Browser UI, toolbars, and operating system elements reduce the usable viewport area.
Can this tool detect mobile screens?
Yes. The tool works on desktops, tablets, laptops, and smartphones.