How it works
- Your own user agent and details appear at the top straight away.
- Click Copy all to paste the details into a support ticket or bug report.
- To decode another user agent, paste it into Parse a user agent.
What is a user agent?
A user agent string is a line of text your browser sends with every request, so websites know what software is asking. A typical one looks like this:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
It's confusing on purpose, for historical reasons: almost every browser starts with "Mozilla/5.0", and Chrome also claims to be Safari, so old websites that checked for those names keep working.
Why does my user agent look wrong?
- Windows 11 shows as "Windows NT 10.0". Browsers froze that part of the string. This page asks the browser's newer Client Hints for the real version when it can.
- Chrome shows 141.0.0.0. Chrome reports only the major version in the string; the full version is available through Client Hints.
- Mac shows "Intel Mac OS X 10_15_7" even on Apple silicon and newer macOS. That's frozen too, for privacy.
Frequently asked questions
Is my information sent anywhere?
No. Everything is read and shown by your browser. Nothing is stored or uploaded.
Can websites see my user agent?
Yes. Every site you visit receives it automatically. It's how sites choose the right download or layout.
Can I change my user agent?
Yes, with your browser's developer tools (device emulation) or an extension. Some sites behave differently when you do.
Why do I need to send my user agent to support?
It tells them your exact browser, version and system, which is often all they need to reproduce a bug.
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