π΅οΈ Online User Agent Detector
Check your user agent string online. Detect your browser name, version, OS and platform instantly. Free user agent checker.
Your User Agent
Browser
OS
Platform
Language
Free online Online User Agent Detector
Our Online User Agent Detector tool is completely free and works directly in your browser. Identify your browser, version and operating system from your User Agent string. No signup required, no data sent to any server.
How to use this tool?
Simply fill in the fields above and the result appears instantly. Our online user agent detector supports user agent, browser, OS. The tool is optimized for both mobile and desktop.
Why use SmartGap Tools?
SmartGap Tools offers over 30 free online tools. Also check out: Screen Resolution, My IP Address. All our tools are fast, free and privacy-friendly.
Frequently Asked Questions
What is a user agent string?
A user agent is a text string your browser sends to every website you visit. It identifies your browser name, version and operating system so the server can adapt its response.
How do I check my user agent online?
Simply visit this page. Your user agent is detected and displayed automatically, along with your browser name, OS and platform.
Why does my user agent mention multiple browsers?
For historical compatibility reasons, browsers include references to older engines. Chrome, for instance, lists Safari and Mozilla in its user agent string.
Is my user agent unique to me?
Not by itself, but combined with screen resolution, language and other signals, it can contribute to browser fingerprinting. Modern browsers are reducing user agent details for privacy.