Free Online Tool

User Agent Checker

View the user agent and browser details websites can read from your browser, including language, platform, screen size, and viewport size.

Loading browser details...

How to use

Open the page and wait for browser details to load.
Use Refresh Details after changing browser, language, or window size.
Copy or compare the user agent when troubleshooting websites, VPNs, or browser compatibility.

What is a user agent?

A user agent is a text string your browser sends to websites. It usually includes browser, engine, operating system, and device information.

Can websites see my browser language?

Yes. Websites can usually read your browser language and accepted language preferences. This is separate from your IP address location.

Is user agent data private?

It is commonly visible to websites. Some browsers reduce or freeze parts of the user agent string to limit fingerprinting.