See what any website can read about your browser and device, and copy it for support
Runs in your browser. Nothing you type is sent anywhere. Updated on 24 Oct 2026.Any website can read over 20 facts about your browser without asking - its user agent, languages, time zone, screen size, pixel ratio, CPU threads, graphics chip and privacy settings among them. This page shows each one as your browser reports it, and copies them as text.
Open the page: it reads what this browser reports and lists it under What any website can read.
Read the Browser, Language and time, Screen and display, Privacy signals and Hardware groups.
In Chrome or Edge, press Read detailed client hints to add platform version, CPU architecture and device model.
Press Copy as text and paste the report into a support ticket.
Every page you open can run a few lines of JavaScript that ask the browser about itself. No permission prompt appears, because none of this counts as sensitive on its own. This page runs those same lines and shows you the answers, grouped into the browser, language and time, screen and display, privacy signals and hardware.
It is useful in two ways. For a support request, press "Copy as text" and paste the report into the ticket: the support team sees the exact browser version, window size and pixel ratio instead of asking for them one by one. For privacy, it shows what trackers use to recognise a device without cookies. No single value identifies you, but the combination of time zone, languages, screen size, graphics renderer and CPU count is often rare enough to act as a fingerprint.
Some values need explaining. The user agent is frozen and partly untrue in current browsers, so Windows 11 still says Windows NT 10.0. Chrome and Edge also offer User-Agent Client Hints; the detailed ones, such as the exact platform version and CPU architecture, are read only when you press the button for them. Device memory is rounded to a power of two and capped, so it is a range rather than your installed RAM. Screen size is in CSS pixels; multiply by the device pixel ratio for the panel's real resolution. Do Not Track is an old signal that most sites ignore, while Global Privacy Control is newer and has legal force in some places.
Everything is read and displayed on your own device. The page sends none of it anywhere, and closing the tab discards it.
For the public IP address, which a page cannot read about itself, use the What Is My IP Address page.
Without asking, a site can read your user agent, languages, time zone, screen and window size, pixel ratio, colour scheme, CPU thread count, approximate memory, graphics chip, touch support and privacy settings. Your IP address arrives with every request too. This page lists each value exactly as your browser reports it.
No. Every value is read by JavaScript running in this tab and shown on screen. Nothing is sent to our server or to anyone else, and the report exists only until you close the page. Copying it puts the text on your clipboard for you to paste where you choose.
Browsers froze the user-agent string, and Microsoft kept the Windows NT 10.0 token for Windows 11. In Chrome and Edge, press the detailed client hints button: a platform version of 13 or higher means Windows 11. Firefox and Safari offer no reliable way to tell.
The device pixel ratio is how many physical screen pixels make one CSS pixel. A ratio of 2 on a phone means a 390-pixel-wide layout is drawn with 780 real pixels, which keeps text sharp. Page zoom changes the ratio too, so 125 percent zoom on a normal monitor reports 1.25.
Often, yes, when combined. Each value is shared by millions of people, but the mix of time zone, languages, screen size, graphics renderer and hardware can be rare enough to recognise one device across visits without cookies. That technique is called browser fingerprinting, and privacy browsers work by blurring these values.
Both are signals a browser sends asking sites not to track or sell your data. Do Not Track is older, its standard was abandoned, and most sites ignore it. Global Privacy Control is newer, sent by Brave, Firefox and some extensions, and California's privacy law treats it as a valid opt-out request.
Still stuck? Ask about Browser and Device Info and anybody who knows can answer. No account needed.
On the related tools: JWT Decoder – Paste a token to read its header, payload and expiry · Passphrase Generator – Three to ten random words you can actually remember · Bcrypt Generator – Generate a bcrypt hash for a test user or a config file.