Device information
Show everything the browser reveals about your screen, device and connection.
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About the device information
Reports everything your browser is willing to disclose about this device: screen and viewport dimensions, pixel ratio, colour depth, language list, timezone, CPU cores, memory estimate and connection quality. Values refresh once a second, so resizing the window updates the readings live.
Frequently asked questions
Why is the viewport smaller than the screen?
Screen size is the physical display. Viewport is the CSS pixel area your page actually gets, after browser chrome, scrollbars and any zoom or device pixel ratio scaling.
Is this data sent anywhere?
No. Everything is read from browser APIs and rendered locally. It is worth seeing, though — this is roughly the fingerprint any site can collect about you without permission.