What is my screen resolution? And everything else the browser knows.
One card with what this browser reports about the device: screen and window size, pixel ratio, browser, system, cores, memory, graphics chip and graphics support. Read locally, sent nowhere.
One check
- Device info
Runs like the stress test: one check after another, with the progress along the top. Nothing you show the camera or say into the microphone leaves this page.
What it measures
Measured here, not assumed.
Screen and window
Screen resolution in pixels, the browser window's size, the pixel ratio and colour depth.
Browser and system
Browser name and version, operating system and version where shared, language and time zone.
Hardware
Processor cores, memory where the browser shares it, the graphics chip name, and WebGL2 and WebGPU support.
If it fails
The usual failures, and what fixes each.
- The resolution looks lower than the monitor's
- Display scaling. A 4K screen at 200 percent reports 1920 by 1080 with a pixel ratio of 2. Both numbers are shown so you can tell.
- The graphics chip is wrong or generic
- The browser reports a renderer string, which some drivers mask. The stress test measures the chip regardless of its name.
Where a browser stops
What it cannot tell you.
- The exact processor model. Browsers hide it; the stress test lets you pick it from a catalogue.
- Memory above 8 GB in Chrome, which reports at most 8 for privacy.
- Storage size and drive type.
Privacy
Nothing leaves this page.
The camera and microphone are read on this page and stopped as soon as they have been measured. The clip you can play back lives in the browser's memory and is discarded when you leave. The location check discards the position. The internet test sends random bytes to this site and nothing else. The result is stored nowhere unless you ask for it by email, and then only the fact that an email was sent is kept.
Questions
Device info, answered
- How do I find my screen resolution?
- Open the card above. It shows the screen's resolution in pixels, the pixel ratio, and the browser window's size, which is what a web page actually sees.
- Why does it say 8 GB when I have more?
- Chrome reports installed memory as at most 8 GB for privacy. Safari and Firefox do not report it at all.
- Is this information sent anywhere?
- No. It is read by the page and shown to you. Nothing is stored or transmitted.
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