Your Display Information

Auto-detected — updates live when you resize the window.

Screen Resolution
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Viewport (inner)
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Device Pixel Ratio
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Orientation
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Preview

What is Screen Resolution?

Screen resolution is the number of pixels displayed horizontally and vertically on your device. It affects sharpness and layout. Common examples: 1920 × 1080 (Full HD), 2560 × 1440 (QHD), 3840 × 2160 (4K).

Why Use This Screen Resolution Checker?

  • ✔ Instant detection — opens and shows results automatically
  • ✔ Works on mobile, tablet, desktop — cross-browser compatible
  • ✔ Shows viewport & device pixel ratio (useful for responsive design)
  • ✔ Free — no sign-up, no tracking

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Frequently Asked Questions

Open this page — the tool automatically detects your screen width, height, pixel ratio and viewport. You can also resize the window to see live updates.

Device Pixel Ratio indicates how many physical device pixels correspond to a single CSS pixel. High DPI displays (e.g., Retina) have ratios > 1.

Yes — Click2Trends Screen Resolution Checker is 100% free and works in all modern browsers without sign-up.