User Agent String Decoder

Every HTTP request your browser makes includes a User-Agent header that identifies the browser, its version, the underlying engine, the operating system, and sometimes the device type. The string is famously cryptic because of decades of compatibility hacks. This decoder parses any User-Agent string and tells you what's actually behind it: browser family and version, rendering engine, operating system name and version, device type if detectable, and whether it looks like a bot or automated client. Paste your own UA (we'll prefill it) or any UA you're curious about. All parsing happens in your browser, nothing is sent to any server.