Browser screen size
See live viewport dimensions, screen size and pixel ratio instantly.
How to use Browser screen size
- Open the page to see your current viewport and screen measurements.
- Resize the browser or change orientation; the viewport measurement updates automatically.
- Read pixel ratio and CSS dimensions together to account for display scaling.
What this tool supports
Displays the workspace viewport, screen and available dimensions in CSS pixels, device pixel ratio, color depth and orientation. Viewport measurements update on browser resize. An embedded execution frame reports its own viewport.
Limits and processing
Browser-reported CSS pixels reflect display scaling and privacy protections; they do not always equal physical display pixels.
Frequently asked questions
What does browser screen size do?
Displays the workspace viewport, screen and available dimensions in CSS pixels, device pixel ratio, color depth and orientation. Viewport measurements update on browser resize. An embedded execution frame reports its own viewport.
Where is my input processed?
This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.
What are the input limits?
Browser-reported CSS pixels reflect display scaling and privacy protections; they do not always equal physical display pixels.