📐 Viewport Calculator

Live viewport dimensions, pixel ratio, and responsive breakpoint info. Resize your window to see updates.

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Width (px)

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Height (px)

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Pixel Ratio

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Breakpoint

🖥️ Viewport Details

Viewport Width-

Viewport Height-

Screen Width-

Screen Height-

Device Pixel Ratio-

Physical Width-

Physical Height-

Color Depth-

Orientation-

Touch Support-

📱 Breakpoints (Tailwind CSS)

🌍 Screen Info

User Agent-

Platform-

Language-

Online-

Cookies Enabled-

📏 CSS Media Queries

About Viewport

The viewport is the visible area of a web page on a display device. Understanding viewport dimensions is essential for responsive design.

Frequently Asked Questions

Does it update in real-time?

Yes. All values refresh automatically when you resize the browser window, change orientation, or zoom.

What is device pixel ratio?

DPR is the ratio of physical pixels to CSS pixels. A DPR of 2 means the screen renders at 2x resolution (common on Retina/HiDPI displays).