Decode a User-Agent string into browser, engine, OS and device — 100% in your browser.
Click "Use my UA" to load your current browser's User-Agent, or paste any UA string and click Parse. The tool uses ua-parser-js (loaded from CDN) to extract browser name + version, layout engine, OS name + version, device type (desktop / mobile / tablet), vendor and model. If the CDN fails to load, a toast will warn you.