Screen Resolution Checker
Check your screen resolution, viewport size, pixel ratio, color depth, and more. Updates live as you resize.
Your files never leave your device. All processing happens in your browser.
How It Works
1
Open the Tool
Visit this page to instantly see your screen resolution and display details.
2
View Details
Check screen width, height, color depth, orientation, and device pixel ratio.
3
Resize to Test
Resize your browser to see viewport dimensions update live. Great for responsive design.
Frequently Asked Questions
What is the difference between screen resolution and viewport size?
Screen resolution is the total number of physical pixels your monitor has. Viewport size is the usable area inside your browser window, excluding toolbars, scrollbars, and the OS taskbar. Viewport size changes when you resize your browser.
What is Device Pixel Ratio (DPR)?
DPR is the ratio between physical pixels and CSS pixels. A DPR of 2 (common on Retina/HiDPI displays) means each CSS pixel is rendered using 2x2 physical pixels, resulting in sharper text and images.
What resolution do I need for video calls?
Most video call apps (Zoom, Teams, Google Meet) use 720p (1280x720) or 1080p (1920x1080). A Full HD (1920x1080) screen is ideal for crisp video calls and screen sharing.