Free network tool
What Is My User Agent?
Your user agent string, decoded: browser, OS, device, screen and language — all detected locally.
Live results. Public network data is never stored.
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Why use this tool
Every browser sends a user agent string identifying itself to websites. This tool shows your exact string and decodes what it reveals about your device.
Detection happens entirely in your browser — nothing is sent to a server.
Features
Show the raw user agent string
Detect browser and version
Detect operating system
Detect device type, screen and language
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How it works
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1
Open the page
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2
Your user agent is detected instantly
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3
Copy the string if needed
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Frequently asked questions
What is a user agent?
A short string your browser sends to websites identifying its type, version and operating system.
Should I hide my user agent?
It is low-risk, but if privacy matters, extensions can spoof it. Most sites use it to render correctly.
Is the user agent detection private?
Yes — this tool reads it locally in your browser and sends nothing to a server.