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User Agent Parser

Read a user agent string: browser, engine, OS, device and hints.

Parsed for this browser

Rules here are token-based and local to your device: nothing is looked up online, and no fingerprint data leaves the page. Version numbers come straight from the string, so spoofed strings are reported exactly as sent.

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What Is User Agent Parser?

A user agent string is a compressed one-line biography of a browser, which this page unpacks. Your own string is decoded on arrival into browser name and version, rendering engine, operating system and a desktop, mobile or tablet verdict, with architecture and brand hints read from client hints when available. Paste any other string, or tap built-in samples like old Internet Explorer, Googlebot or a Chromium Edge client, while hand-written token rules expose WebView markers, bot suffixes and the trick iPadOS plays of claiming to be a Mac.

Who Uses the User Agent Parser?

Support engineers and web developers use it to decode reported visitor strings when debugging device-specific bugs or server-side detection logic.

How to Use the User Agent Parser

  1. Read the tiles under Parsed for this browser to decode your own string.
  2. Press Copy Raw UA, or paste a different string into the second box.
  3. Tap samples like Old IE 11, iPad posing as Mac or Googlebot to check the verdicts.

Why Choose Our User Agent Parser?

  • Token rules run locally, with no lookup tables or network calls
  • Calls out WebView, bots and iPad desktop-mode lookalikes
  • Shows client hint architecture and brands when available

Try the User Agent Parser above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.