Screen Resolution & Viewport Info
Read browser-reported screen, viewport, and devicePixelRatio values. Physical pixels are estimates only.
Tests run locally in your browser. We do not upload keystrokes, pointer paths, or media.
Important
- Physical pixel estimates use devicePixelRatio and may not match panel native resolution.
Values update on resize, orientation change, DPR change (matchMedia), and fullscreen. Physical pixel sizes are estimates via devicePixelRatio — not a hardware certification.
Browser-reported display metrics
- Screen
- —
- Available
- —
- Inner viewport
- —
- Client viewport
- —
- Visual viewport
- —
- DPR
- —
- Estimated physical pixels
- —
- Orientation type / angle
- —
- Color depth
- —
- Pixel depth
- —
- Fullscreen
- No
- Observed time (local)
- —
- Observed time (ISO)
- —
screen × DPR
How to use
- Open this tool and follow the on-screen Start control.
- Keep the tab focused during measurement for accurate samples.
- Review results, limitations, and related tools below.
- Use Reset to clear local trial state when available.
What the result means
- Numbers come from browser APIs and local timing only.
- See Limitations for what this test cannot claim.
Limitations
- Physical pixel estimates use devicePixelRatio and may not match panel native resolution.
Troubleshooting
- Nothing happens after Start
- Focus the tab, allow required permissions if prompted, and ensure the test surface receives input.
Related tools
Refresh Rate Test
Estimate the current browser presentation timing from requestAnimationFrame intervals.
FPS Test
Measure how many animation frames this browser completes under light or controlled load. Distinct from refresh-rate estimation.
Dead Pixel Test
Cycle solid full-screen colors so you can look for dark or stuck pixels. You record what you see.
FAQ
Is this a hardware laboratory result?
No. DeviceMetrik reports browser-observed values with explicit limitations.