Free Online User-Agent Parser
Parse and analyze browser User-Agent strings instantly. Our User-Agent parser tool extracts detailed information about browsers, operating systems, devices, and rendering engines. Identify mobile vs desktop visitors, detect bots and crawlers, and understand browser capabilities. All processing happens locally in your browser for maximum privacy.
User-Agent String Analysis Tool
Understand User-Agent strings with comprehensive parsing for browser detection, OS identification, and device type classification. Perfect for web developers debugging cross-browser issues, analytics teams analyzing traffic, and security professionals identifying suspicious requests. Supports all major browsers including Chrome, Firefox, Safari, Edge, and mobile browsers.
Browser and Device Detection
Accurately detect browser names and versions, operating systems (Windows, macOS, Linux, iOS, Android), device types (mobile, tablet, desktop), and hardware vendors (Apple, Samsung, Google, etc.). Identify bot traffic from Googlebot, Bingbot, and other crawlers for SEO analysis.
Developer-Friendly UA Parser
Built for developers working on responsive design, feature detection, and browser compatibility. Export parsed results as JSON for integration with your applications. Test with pre-loaded examples for Chrome, Firefox, Safari, Edge, iOS, Android, and popular bots. Zero server dependency - all processing is client-side.
Frequently Asked Questions
What is a User-Agent string?
A User-Agent string is a text identifier sent by browsers and HTTP clients to web servers. It contains information about the browser name and version, operating system, device type, and rendering engine, helping servers deliver appropriate content.
How do I find my browser's User-Agent?
Click the 'Use Current Browser' button to automatically detect and parse your browser's User-Agent. You can also find it in browser DevTools (Console: navigator.userAgent) or Network tab request headers.
Can this detect bots and crawlers?
Yes! The parser identifies common bots and crawlers including Googlebot, Bingbot, DuckDuckBot, and many others. Bot User-Agents are flagged with a special indicator in the results.
What browsers are supported?
The parser supports all major browsers including Chrome, Firefox, Safari, Edge, Opera, Samsung Internet, UC Browser, Vivaldi, Brave, Yandex Browser, Whale, and Internet Explorer. Mobile browser variants are also detected.
Is my User-Agent data secure?
Absolutely. All parsing happens entirely in your browser using JavaScript. Your User-Agent strings are never sent to any server, ensuring complete privacy and security.
Can I export the parsed results?
Yes, you can download the parsed results as a JSON file or copy them to your clipboard. The JSON format is ready for use in your applications or for documentation purposes.