Device Resolution Checker 💻
Instantly check your monitor's screen resolution and current browser viewport size.
Browser Viewport (CSS Width)
0x0
(Resize your browser window to see this change in real-time)
Actual Screen Resolution
0x0
Pixel Ratio: 1x
What is my Screen Resolution?
Our Free Device Resolution & Viewport Checker is a must-have tool for web developers, designers, and QA testers. It instantly detects the physical display capabilities of your monitor and the current viewable area of your browser.
Screen Resolution vs Viewport:
- Screen Resolution: This is the total number of physical pixels on your hardware monitor (e.g., a 1080p monitor is 1920x1080).
- Browser Viewport: This is the actual CSS width and height available for a webpage to render. It is usually smaller than your screen resolution because of browser toolbars, scrollbars, and display scaling settings.
- Pixel Ratio: High-density displays (like Apple Retina screens) use multiple physical pixels to draw a single CSS pixel to make text and images look sharper.