About This Tool
This free online Screen Resolution Checker detects your current screen resolution and displays useful information about your device and browser window. You can instantly see your screen dimensions, available screen size, viewport size, device pixel ratio, color depth and screen orientation.
The tool works directly in your browser using standard browser screen and window properties. No software, registration or server-side processing is required.
What Is Screen Resolution?
Screen resolution refers to the number of pixels displayed horizontally and vertically on a screen. Common examples include 1920 × 1080, 1366 × 768 and 2560 × 1440.
What Is Viewport Size?
Viewport size is the width and height of the area currently available for displaying a web page inside your browser window.
What Is Device Pixel Ratio?
Device pixel ratio, or DPR, indicates the relationship between CSS pixels and physical device pixels. High-density displays can have a device pixel ratio greater than 1.
Frequently Asked Questions
What is screen resolution?
Screen resolution is the number of pixels displayed horizontally and vertically on a screen, such as 1920 × 1080.
What is viewport size?
Viewport size is the width and height of the area currently available for displaying a web page inside your browser window.
What is device pixel ratio?
Device pixel ratio indicates the relationship between CSS pixels and physical device pixels. High-density displays can have a device pixel ratio greater than 1.
Does this tool collect my screen information?
No. The information is detected locally by your browser and is not uploaded to our server.
Can I use this screen resolution checker on mobile?
Yes. The tool works on smartphones, tablets, laptops and desktop computers.