What Is My Browser
See your browser, operating system, user agent and device details.
User agent
About the What Is My Browser
See what your browser reveals about you. This tool reads details directly in your browser — your user agent, browser and version, operating system, screen resolution, languages, timezone and device capabilities — the same information any website you visit can access. Everything is read locally; nothing is uploaded.
How to use
- Open the page to instantly see your browser and device details.
- Check your user agent, OS, screen size and other properties.
Frequently asked questions
- What is a user agent?
- The user agent is a string your browser sends with every request that identifies the browser, its version and your operating system. Websites use it to adapt content and for analytics.
- Is this information private?
- It's read locally and not uploaded by this tool, but the same details are visible to every website you visit and can contribute to browser fingerprinting.