What Is My Browser

🖥️ What Is My Browser

Detect your browser, operating system, screen and user-agent info.

About the What Is My Browser

What Is My Browser detects your browser, operating system, screen size and user-agent string — useful for support requests and debugging display issues.

Everything is read from your own browser; nothing is uploaded.

How to use it

Open the page.
Read your browser, OS and screen details.
Copy the info for a support ticket if needed.

Every tool on SEOKeyMaster is 100% free, works right in your browser, and requires no signup or API key. Your data never leaves your device.

Frequently Asked Questions

What is a user agent? ▼

A text string your browser sends that identifies its name, version and platform.

Why does my browser version matter? ▼

Support teams use it to reproduce and fix display bugs.