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User Agent Parser
Decode and analyze User Agent strings to identify browser, OS, device, and rendering engine.
No uploads • Client-side only • Your data stays on your device
User Agent String
Enter a User Agent string above to analyze.
What is a User Agent?
A User Agent string is sent by your browser to every website you visit. It identifies your browser, operating system, and device type, helping websites deliver optimized content for your setup.
Your Privacy Guaranteed
All processing happens directly in your browser using JavaScript. Your files, passwords, and data never leave your device and are never uploaded to our servers. We cannot see, store, or access anything you process with this tool.
No account required • No tracking • No data collection • Works offline after initial load