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User-Agent Parser

Read a browser’s user-agent string.

This is your browser’s own. Paste another to read it.

What it says

Browser
–
Engine
–
Operating system
–
Device type
–

Client hints from your browser

Brands
–
Platform
–
Mobile
–
Platform version
–
Architecture
–

Runs on your device. Nothing to upload.

Questions

What is a user-agent string?

A line of text every browser sends to websites to say what it is, like “Mozilla/5.0 (Windows NT 10.0; Win64; x64) … Chrome/140.0”. Nearly every browser starts with “Mozilla” for historical reasons, which is why reading them takes a parser.

Why is the version or system sometimes vague?

Browsers now reduce what the string reveals, to make visitors harder to track. Chrome, for example, always says “Windows NT 10.0” even on Windows 11 and hides minor versions. Chromium browsers share more through client hints, shown below for your own browser.

Can I parse strings from my server logs?

Yes: paste any user-agent string into the box.

Is it free? Do I need an account?

It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.

Missing something, or not working as it should? Tell us