Screen Resolution Detector
See your screen resolution, viewport size, and pixel density.
Instantly see your display's screen resolution, current browser viewport size, and device pixel ratio.
Your files and text are processed locally in your browser — nothing is uploaded to a server.
Screen Resolution Detector tool
How to Use Screen Resolution Detector
- Open this page — your screen details are detected automatically.
- Resize your browser window to see the viewport size update live.
Features
- Screen resolution and available screen space
- Live browser viewport size
- Device pixel ratio
- Nothing is sent anywhere
Frequently Asked Questions
Why is my viewport smaller than my screen resolution?
The viewport is your browser window's visible content area, which is typically smaller than your full screen resolution.