Screen Resolution Detector

Instantly check your screen resolution, viewport size, pixel density, browser details, and device information. 100% free, private, and client-side.

Screen Resolution — × —
Viewport Size — × —

Screen Details

Resolution
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Available Size
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Color Depth
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Pixel Ratio (DPR)
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Orientation
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Touch Support
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Browser Details

Viewport Size
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Window Outer Size
—
Pixel Ratio
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Browser Language
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Platform
—
Cookies Enabled
—

Device Information

User Agent
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CPU Cores
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Device Memory
—
Connection Type
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Online Status
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About This Tool

This tool instantly detects and displays your screen resolution, viewport dimensions, browser details, and device information. All data is gathered locally in your browser — nothing is sent to any server, ensuring complete privacy. Use it to verify your display settings, debug responsive designs, or check device capabilities.

Features

  • Real-time screen resolution and viewport detection
  • Pixel ratio (DPR) for Retina / high-DPI displays
  • Touch support detection and multi-touch points
  • Browser, platform, and connection details
  • One-click copy of all device info
  • 100% client-side: zero data leaves your device

Frequently Asked Questions

Is my data collected or stored?
No. All information is read directly from your browser using JavaScript APIs. Nothing is transmitted to any server or stored anywhere.
Why does my screen resolution differ from the marketed specs?
Market specs often list the physical panel resolution. Browser-reported resolution may differ due to OS scaling settings, browser zoom levels, or virtual resolutions on high-DPI displays.
What is device pixel ratio (DPR)?
DPR is the ratio between physical pixels and CSS pixels. A Retina display typically has a DPR of 2, meaning 1 CSS pixel maps to 4 physical pixels (2×2).
Does the viewport size update when I resize the browser?
Yes. The viewport size updates automatically when you resize the browser window or rotate your mobile device.