UserAgent Analyzer – Decode Any User‑Agent String Online
A User-Agent string is a line of text that your browser sends to a website's server every time you visit it. It contains information about the browser, version, operating system, and hardware type. This information helps websites tailor their content to your specific device, but it can also be used for debugging, security audits, and traffic analysis.
Why Use Our User-Agent Parser?
Developers often need to know exactly how a specific device is identified. For example, if a user reports a bug on a "Samsung Galaxy," the developer needs the UA string to see the exact browser version and engine (like Blink or WebKit) involved. Our analyzer provides an instant breakdown of these technical parameters.
How to use this tool:
- Copy a User‑Agent string from browser devtools (Network tab or navigator.userAgent in console).
- Paste it into the input area.
- Click “Analyze” or rely on real‑time parsing.
- Review extracted browser, OS, device, and engine details.
Frequently Asked Questions
Q: How accurate is the detection?
A: The tool uses the well‑maintained UAParser.js library, which is regularly updated with new browser and OS versions. Most modern and popular browsers are detected with high precision.
Q: Does the tool store my UA strings?
A: No, all parsing happens locally in your browser. We respect your privacy; no data is sent to any server for storage or processing.
Q: Can I detect custom bots?
A: The tool recognizes common crawlers like Googlebot and Bingbot. If a custom bot follows standard naming conventions, it will be flagged as a "Bot."
Q: What about mobile devices?
A: Yes, it identifies iPhone, iPad, Android tablets, and various smartphone models by parsing the hardware tokens within the UA string.