Device check / Info
Device Info: Screen, Browser, and System
See your screen resolution, pixel ratio, viewport, browser and system versions, graphics, memory, touch support, and which video, audio, and image formats your browser can play, and copy it all as a report.
Device Info: Screen, Browser, and System: The page asks your browser about the device it runs on: the screen and window sizes and pixel ratio, colour depth and HDR, the browser, operating system, and graphics chip, processor threads, approximate memory, touch points, languages, time zone, and storage. It also checks which formats the browser can play, H.264, HEVC, VP9, and AV1 video, AAC, Opus, MP3, and FLAC audio, and WebP and AVIF images. Some browsers report less on purpose to protect privacy. Runs 100% locally in your browser with zero server file uploads.
- Category
- Everyday tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
Read in your browser and shown only to you; nothing is sent anywhere. Copy the report to send it to a support team or developer.
Reporting a problem
When a site or app misbehaves, support teams ask for the browser, system, and screen size first. Copy the report and paste it into the support message, along with your IP address if they ask for it.
To check the screen itself for dead pixels or backlight bleed, run the monitor test.
Why some details are missing
Browsers deliberately reduce what sites can learn, to make tracking harder: Safari and Firefox report less about the device, memory is rounded, and the graphics chip may be generalised. That is a privacy feature, not a fault.
How to use it
- Open the page: the details are read at once.
- Resize the window to see the viewport change, or press Refresh.
- Press Copy the report to send the details to a support team or developer.
Privacy & limitations
Read in your browser and shown only to you; nothing is sent anywhere.
Related tools
Frequently asked questions
What is the pixel ratio?
How many physical pixels make up one CSS pixel. A ratio of 2 means a sharp, high-density screen, such as a Retina display; web pages are laid out in CSS pixels and drawn with physical ones.
Why is my screen resolution smaller than advertised?
Browsers report the screen in CSS pixels, the advertised resolution divided by the pixel ratio, and by any display scaling in the system settings. The physical pixels row multiplies them back.
Why does memory show a round number?
Browsers round the memory they report, and cap it at 8 GB, so that sites cannot use exact figures to identify a device.
Free tool · runs in your browser · no account required