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Screen resolution, live viewport size, pixel ratio, touch support and display preferences — this page simply asks your own browser and shows you the answers. There’s nothing to type and nothing to upload; every number is read on your device and never leaves the tab.
Measuring…
Your whole screen, in CSS pixels — the units web pages are laid out in.
Physical pixels are what the pixel ratio implies, not a hardware readout. On a desktop, browser zoom changes the ratio — set zoom to 100% to see the panel’s native resolution.
Measuring…
The window this page is drawn in, toolbars excluded — it updates live, so drag a window edge or rotate your phone and watch it follow.
Measuring…
Pointer is the precision of your main input. A touch laptop usually says fine with a touchscreen too, because the trackpad is primary.
Measuring…
Guessed from the user-agent string, which browsers falsify on purpose — Chrome claims to be Safari, everything claims to be Mozilla, and Apple freezes the version number. Treat it as a hint; the FNDRY39 User Agent Checker does the full breakdown.
Everything on this page is measured by your own browser, in this tab. Nothing is typed, nothing is uploaded, and none of it is sent anywhere.
There is nothing to type and nothing to upload — your own browser already knows these answers, and the tool simply asks it.
Every reading comes from your browser’s own APIs, on your own device. Nothing is requested from a server and nothing is reported back — we never see a single measurement.
One press puts it on your clipboard, ready to paste where you need it. There is no file to download — the result is text, not a document. Nothing is recorded — the readings live on this page and nowhere else, and leaving it is the end of them.