What Is My User Agent?

    See the user agent string your browser sends to every website.

    Your User Agent String

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    Browser

    Unknown

    Browser Version

    Unknown

    Rendering Engine

    Unknown

    Operating System

    Unknown

    OS Version

    Unknown

    Device Type

    Desktop

    What Is a User Agent?

    A user agent is a text string your browser sends with every request. It tells websites your browser name, version, operating system, and device type. Websites use it to serve the right layout and features for your setup.

    It's also one of the key signals used in browser fingerprinting. Combined with other data points from your IP address and device, it helps build a profile that can track you across websites — even without cookies.

    What This User Agent Checker Shows

    • Your full user agent string
    • Browser name and rendering engine
    • Operating system and version
    • Device type (desktop, mobile, tablet)

    Why Checking Your User Agent Matters

    Checking your user agent helps you understand what websites see when you connect. It's useful for debugging compatibility issues, verifying that a user agent spoofer is working, or simply learning how your browser identifies itself.

    If you're concerned about fingerprinting, the best approach is to use a common, widely-shared user agent rather than randomizing it — randomization can actually make you stand out more.

    Privacy Note

    Your user agent string is sent to every website you visit automatically. It can reveal your browser, OS, and device type. This tool shows you exactly what's shared. We don't store, track, or log any of your data.

    Explore More Privacy Tools

    Check what other information your connection and device expose online.

    Frequently Asked Questions

    Is this user agent checker free to use?

    Yes, our user agent checker is 100% free and ad-free. We believe privacy diagnostics should be accessible without intrusive tracking or advertisements.

    What is a user agent string?

    A user agent string is a line of text your browser automatically sends to every website you visit. It contains details about your browser name, version, operating system, and device type. Websites use it to serve the right layout and features for your setup.

    How do I find my user agent?

    The easiest way is to use a user agent checker tool like this one — it shows your full string instantly. You can also find it in your browser's developer tools by opening the Console and typing navigator.userAgent.

    Can I change my user agent?

    Yes. Some browser extensions and developer tools let you override or spoof your user agent string. However, changing it inconsistently can actually make you more identifiable through browser fingerprinting.

    Is my user agent private?

    No. Your user agent is sent automatically with every web request. Any website you visit can read it without your explicit permission. It's one of the most basic pieces of information shared during browsing.

    Does every browser have a different user agent?

    Yes. Each browser sends a unique user agent string that identifies its name, version, and rendering engine. Even different versions of the same browser will have different strings. This is why user agents are used as one signal in browser fingerprinting.

    Why do websites read my user agent?

    Websites read your user agent to serve the correct layout for your device, check browser compatibility, and deliver OS-specific downloads. Some also use it for analytics tracking or as part of a fingerprinting profile.