What Is My User Agent

Every browser sends a user agent string that identifies the browser, operating system, and device type to websites. The What Is My User Agent tool by 9Nex Tools allows you to instantly view your complete user agent information in a clear and readable format.

This tool is useful for developers, testers, and website owners who need to debug browser-specific issues, test compatibility, or understand how websites detect devices and browsers. It provides accurate, real-time detection without requiring manual configuration.

Designed for simplicity and speed, the tool runs entirely in your browser and delivers instant results. No registration, downloads, or technical knowledge is required.

What Is My User Agent

What Is a User Agent?
A user agent is a text string sent by your browser to a web server with every request. It contains information about the browser name, version, operating system, and device type being used.

Why User Agent Information Matters
User agent data helps websites deliver compatible content, apply responsive layouts, and handle browser-specific features or limitations correctly.

What You Can Do with It

• View your complete browser user agent string

• Identify browser name and version

• Check the operating system and device type

• Test browser detection and compatibility

• Debug user agent–based issues

• Share user agent details for troubleshooting

How to Use It

• Open the What Is My User Agent tool on 9Nex Tools

• Allow the page to load in your browser

• View your user agent details instantly

• Copy the information for testing or analysis

Why It’s Useful

• Instantly shows accurate user agent data

• Helps debug browser and device issues

• Useful for developers, testers, and support teams

• Faster than checking browser settings manually

• Works on all devices and modern browsers

• Free to use with no login or tracking