BRev What’s my browser
What’s my browser? User agent & fingerprint check
Your user agent, browser and engine, OS, screen and viewport, locale, timezone and device capabilities — read directly from your own browser and parsed with honest caveats (UA strings are frozen and they lie). Unlike an IP lookup, this tool needs no server at all: the page makes zero network requests, which is exactly the point — everything here is what any website can already see.
Nothing below is looked up anywhere — every value is read from your own browser, and no request carries any of it. The page does load one analytics pageview, like every page on this site — and that request by itself already reports your screen size, user agent and language, which is exactly the point this page is making.
Reading your browser…