Screen Resolution Checker
Instantly detect your screen resolution and display properties
Your Screen Resolution
pixels
0 × 0
Browser window size
0 × 0
Excluding OS taskbars
1x
Standard display
0-bit
Limited Color
Unknown
Detecting...
0 × 0
Actual pixels on screen
Common Screen Resolutions
| Resolution | Name | Common Use |
|---|---|---|
| 1920 × 1080 | Full HD (1080p) | Most common desktop |
| 2560 × 1440 | QHD / 2K | High-end monitors |
| 3840 × 2160 | 4K UHD | Pro & TV displays |
| 1366 × 768 | HD | Laptops & tablets |
| 1280 × 800 | WXGA | Older laptops |
| 390 × 844 | iPhone 14 | Modern smartphones |
| 360 × 800 | Android HD | Android phones |
| 768 × 1024 | iPad | Tablets |
Use Cases
Web Development
Check viewport sizes to ensure your responsive designs look perfect across all device breakpoints.
Graphic Design
Know your display's physical resolution and pixel density to create assets at the correct scale.
Hardware Check
Verify your monitor or display is running at its native resolution for the sharpest image quality.
Mobile Testing
Identify your mobile screen dimensions to test how websites and apps render on your device.
Video Production
Confirm your display supports the resolution needed for editing 4K, 1080p, or other video formats.
Gaming
Check your screen resolution before configuring game settings for the best performance and visual quality.
Frequently Asked Questions
Everything you need to know about screen resolution
What is screen resolution?
Screen resolution is the number of pixels displayed on your screen, expressed as width × height. Higher resolution means more pixels and a sharper image.
What is viewport vs screen resolution?
Screen resolution is the physical display size. Viewport is the visible area inside your browser window, which changes when you resize the browser.
What does device pixel ratio mean?
Device pixel ratio (DPR) is the ratio of physical pixels to CSS pixels. A DPR of 2 (Retina) means 4 physical pixels for every 1 CSS pixel, resulting in sharper images.
Is any data collected?
No. All detection runs entirely in your browser using JavaScript's built-in screen APIs. Nothing is sent to any server.
Why does the resolution update when I resize?
The viewport dimensions update live as you resize the browser window. The screen resolution itself stays fixed — it reflects your monitor's hardware setting.
How do I change my screen resolution?
On Windows: right-click desktop → Display settings → Resolution. On macOS: System Settings → Displays. On mobile devices, resolution is fixed by the hardware.