Instantly see your browser's full User-Agent string, plus your platform, languages and a quick browser and OS guess. One-click copy.
Need to parse a different User-Agent string? Use the User-Agent Parser. Your browser sends its User-Agent with every request, so it is not private, but nothing here is uploaded.
It is a line of text your browser sends to every website that identifies the browser, its version, the rendering engine and your operating system. Sites use it to adapt content and to gather analytics.
No. It is broadcast to every site you visit, so treat it as public. This tool only reads it locally and never uploads it. It also does not uniquely identify you on its own, but it is one of several signals used in browser fingerprinting.
For historical compatibility almost every User-Agent starts with 'Mozilla' and many include 'Safari' or 'like Gecko'. That is why parsing User-Agents is unreliable and the browser guess here is approximate.
Yes, browsers and extensions can spoof it, and developer tools let you override it for testing. This tool always shows what your browser is currently sending.