Developer

Screen Resolution Detection

Use screen resolution detection to inspect the browser-reported display size, available area, color depth, and pixel density.

Screen resolution detection

Check the current display resolution, available area, and pixel density reported by the browser.

This tool is useful when you are checking a laptop screen, a desktop monitor, or a presentation display and want the browser-reported screen size without opening developer tools.

Live screen metrics

Current screen size and display information.

Screen
0 x 0
Available area
0 x 0
Color depth
0
Pixel depth
0
Orientation
portrait
Screen: 0 x 0
Available screen: 0 x 0
Color depth: 0
Pixel depth: 0
Device pixel ratio: 1
Orientation: portrait

Why use screen resolution detection

Screen resolution detection helps you check the display size, available screen area, and pixel density reported by the browser. It is useful when you need to understand the screen resolution behind a device rather than the browser viewport alone.

That makes this page useful for searches like screen resolution detection, screen resolution checker, display resolution checker, screen size detector, and screen width height checker because it surfaces the live display values directly in the browser.

Check resolution, available area, and pixel density

The browser reports screen width, screen height, available width, available height, color depth, and pixel depth. Screen resolution detection brings those values together so you can compare the full display against the space available to the page and track the browser-reported screen size.

This is helpful for QA testing, desktop support, responsive design review, and any workflow where screen density or available screen size matters for a monitor, laptop, or kiosk display.

Common screen resolution checker use cases

Use screen resolution detection when you are documenting device layouts, checking kiosk or presentation setups, or comparing a large monitor against a smaller laptop display. It is also helpful when you want to see how a device reports orientation and display size on the active screen.

Since the values update in the browser, you can resize the window or move between displays and see the reported screen information change with the environment, which makes it a reliable screen info detector.

FAQ

What does screen resolution detection show?

It shows the browser-reported screen width, screen height, available screen area, color depth, pixel depth, and orientation.

Is screen resolution the same as viewport size?

No. Screen resolution describes the display, while viewport size describes the browser area available to the page.

Can I use it to check multiple monitors?

It shows the screen attached to the current browser window, which is useful for checking the active display.

Does it run locally?

Yes. The screen information is read in the browser and never leaves the page.

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