Parse user agent strings to identify browser, OS, device type, and rendering engine.
Paste a user agent string.
Browser, OS, and device are identified.
See detailed component breakdown.
Use the User Agent Parser when analyzing web server access logs, debugging browser-specific rendering issues, or identifying bot traffic patterns. It is valuable for frontend developers testing responsive designs across different devices and browsers by understanding the reported capabilities. Marketing teams use it to analyze visitor demographics from analytics data.
A user agent string is an HTTP header that browsers and other clients send to identify themselves to web servers. It contains information about the browser name and version, operating system, device type, and rendering engine. Servers use this information for content negotiation, analytics, and compatibility adjustments tailored to specific client capabilities.
Yes, the parser identifies common bots and web crawlers including Googlebot, Bingbot, social media crawlers (Facebook, Twitter), monitoring tools, and SEO scanners. Bot detection is based on known user agent patterns and keywords. This helps developers analyze server logs to separate human traffic from automated requests for accurate analytics.
Yes, your current browser's user agent string is automatically detected and displayed as the default input when you load the tool. This lets you instantly see how your browser identifies itself to websites. You can then paste other user agent strings from logs or analytics to parse and compare them.
