Screen Resolution Checker
Instantly check your screen resolution, browser viewport, device pixel ratio (DPR), aspect ratio, color depth, and other display information directly in your browser.
Your Current Screen Information
Total display resolution reported by your device.
Visible web content area inside your current browser window.
Display area excluding some system UI such as taskbars or docks.
How many physical pixels are used for one CSS pixel.
Width-to-height proportion of your current screen.
Reported color depth available through the browser.
Detected browser family from the current user agent.
Detected operating system based on browser-reported platform details.
Whether touch input appears to be available on this device.
Whether this page is currently being viewed in browser fullscreen mode.
Current portrait or landscape orientation reported by the browser.
Best-effort browser signal only, not a hardware certification result.
What Is Screen Resolution?
Screen resolution is the total number of pixels your display can render, expressed as width × height, such as 1920 × 1080 or3840 × 2160.
Higher resolutions generally provide sharper images and more workspace, although image quality also depends on screen size, scaling, and pixel density.
What Information Does This Tool Show?
Our Screen Resolution Checker automatically detects key display information directly from your browser, including:
- Screen Resolution
- Browser Viewport Size
- Available Screen Size
- Device Pixel Ratio (DPR)
- Aspect Ratio
- Color Depth
- Screen Orientation
- Browser, OS, and touch support details
All values update automatically as your browser window changes.
Understanding Display Information
Screen Resolution
The total number of pixels available on your display.
Browser Viewport
The area available for web content after browser toolbars and interface elements are excluded.
Device Pixel Ratio (DPR)
Higher DPR values generally produce sharper text and images on high-density displays.
Aspect Ratio
Common aspect ratios include 16:9, 16:10, 21:9, and 32:9.
Color Depth
Higher color depth allows smoother gradients and can reduce visible banding.
Orientation & Fullscreen
These values help you understand how the browser is currently presenting content on your device.
Common Screen Resolutions
| Type | Resolution | Typical Use |
|---|---|---|
| HD | 1280 × 720 | Entry-level displays and older devices. |
| Full HD | 1920 × 1080 | Most desktop monitors, laptops, and general web use. |
| QHD | 2560 × 1440 | Gaming, productivity, and sharper desktop workspaces. |
| 4K UHD | 3840 × 2160 | Professional work, media, and high-detail displays. |
| 5K | 5120 × 2880 | High-end creative displays and dense desktop layouts. |
| 8K | 7680 × 4320 | Professional production and specialty workflows. |
Why Check Your Screen Resolution?
- Verify display settings after changing hardware or cables
- Troubleshoot browser scaling or layout issues
- Prepare screenshots and design previews more accurately
- Check whether games or apps are using the expected resolution
- Compare multiple devices during testing or QA work
How to Change Your Screen Resolution
Windows
Open Settings → System → Display, then choose the recommended resolution under Display Resolution.
macOS
Open System Settings → Displays, then select the default or scaled resolution that best fits your screen.
Linux
Open your distribution's Display Settings and choose the native resolution reported by the monitor when available.
ChromeOS
Open Settings → Device → Displays and adjust display size or resolution for the connected screen.