What’s My Browser Size?
View your live viewport and window size with device pixel ratio. Copy details instantly.
Inner: 0x0 | Outer: 0x0 | DPR: 1
Inner (viewport)
0 × 0px
Outer (window)
0 × 0px
Device pixel ratio
1
Notes
- Resize the window or rotate your device to update values.
- Viewport excludes browser UI; window size includes window frame.
What is this tool?
Displays inner (viewport) and outer (window) sizes and the device pixel ratio in real time.
Useful for responsive design, QA, and debugging layout issues.
How to use
Resize or rotate your device and watch the values update.
1.Resize window:
Adjust the window to test breakpoints.
2.Copy details:
Share the summary with your team.
Common uses
Where it helps:
- Responsive QAVerify viewport breakpoints quickly.
- Bug reportsAttach accurate sizes and DPR to issues.
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