Instantly decode any user-agent string into browser, OS and device
A user agent parser breaks down the cryptic UA string sent by every browser into human-readable fields: browser name and version, rendering engine, operating system, and device type. Paste any user-agent string — or click "My Browser" to analyse your own — and get a clear, structured breakdown in seconds. Useful for debugging, QA, analytics, and server-side device detection.
A user-agent string is a short text identifier that your browser automatically sends to every website you visit. It tells the server which browser, version, and operating system you are using so the site can serve compatible content.
Apple requires all browsers distributed through the App Store to use the system WebKit engine. Chrome, Firefox, and Edge on iOS are therefore all built on WebKit, not their own engines, which is reflected in the parsed engine field.
The parser recognises the most common device signatures — Apple (iPhone/iPad/Mac), Samsung Galaxy (SM- prefix), Google Pixel/Nexus, and several Android brands. Obscure or generic Android devices may only show 'Android Mobile' without a specific model.
No. All parsing happens entirely in your browser using JavaScript regex. Your UA string is never transmitted to any server, making this tool safe to use with internal or sensitive environments.