User Agent Parser
Paste a user-agent string and get a quick readable breakdown.
Decode a user-agent string
User-agent strings are dense and cryptic, packing browser, engine, OS, and device into one line. This parser breaks a pasted user-agent into a readable breakdown, so you can quickly tell what a request came from.
It is handy for debugging device-specific issues from logs, checking analytics, and understanding a support report. Paste the user-agent string and get a clear summary of the browser, operating system, and device it describes.
Decoding the string
It splits a user-agent into browser, engine, OS, and device so a cryptic line becomes readable. Parsing runs in your browser and never uploads anything.
Frequently asked questions
What does it detect?
The browser (Edge, Chrome, Firefox, or Safari), operating system, rendering engine, and whether it looks like a mobile device.
How accurate is user-agent detection?
It is a best guess. Browsers reduce and freeze parts of their user-agent strings, and many copy each other's tokens. For reliable data, use User-Agent Client Hints.
Where do I find my user-agent string?
In Chrome DevTools, open the Network tab and check a request's headers, or type navigator.userAgent in the console.
Related tools
Practical utilities for everyday web development work.