What Is My User Agent

The What Is My User Agent tool instantly shows your browser's complete user-agent string for free — the identifier your browser sends to every website — ready to copy for support and testing.

What is a user agent?

The user-agent string tells websites which browser, version and operating system you are using so they can serve the right experience. Developers and support teams often need it to reproduce and debug issues.

How to use the What Is My User Agent

1. Open the tool.
2. It reads your user-agent string.
3. Copy the full string to share.

Key features

• Free, instant detection
• Shows the full user-agent string
• Handy for support and debugging
• No sign-up required

Related tools

What Is My Browser · What Is My Screen Resolution · What Is My IP

Frequently asked questions

Is the What Is My User Agent tool free?

Yes, it is completely free.

Is my data sent anywhere?

No, it is read in your browser.

Why would I need my user agent?

To help support or developers reproduce browser-specific issues.

Can the user agent be changed?

Yes, browsers and extensions can spoof it, but this shows your current one.