My Screen Resolution
Check your screen resolution, DPR & viewport instantly
My Screen Resolution launched on April 20, 2026.
What it does
A free browser tool that instantly detects your screen resolution, viewport size, device pixel ratio, and color depth. Plus detailed guides for every common resolution (1080p, 1440p, 4K, 5K, 8K), side-by-side comparisons, and 100 articles on display technology and troubleshooting. No install needed — works in any browser on any device.
Instantly detect your screen resolution, viewport size, device pixel ratio, and color depth. Free online screen resolution checker tool.
Screen resolution refers to the number of pixels displayed on your screen, expressed as width × height (e.g., 1920 × 1080). Each pixel is a tiny point of light that, combined with millions of others, forms the images, text, and graphics you see on your display. A higher resolution means more pixels are packed into the same physical space, resulting in sharper and more detailed visuals. Your device pixel ratio (DPR) indicates how many physical pixels correspond to a single CSS pixel. Modern high-resolution displays like Apple Retina screens typically have a DPR of 2x or 3x, meaning they use 4 or 9 physical pixels to render what would be a single pixel on a standard display. This makes text…from my-screen-resolution.com
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