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User-Agent Parser

Parse a User-Agent header into browser, OS, device, and engine information.

Parse a User-Agent header into browser, OS, device, and engine information.

Quick start: Paste a User-Agent string → See browser, OS, device, and engine → Optionally load your own browser's UA

How to use User-Agent Parser

  1. 1

    Paste a User-Agent string

  2. 2

    See browser, OS, device, and engine

  3. 3

    Optionally load your own browser's UA

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Why use User-Agent Parser?

  • Detects Chromium-based browsers separately (Edge, Brave, Opera, Vivaldi)
  • Identifies iOS, Android, Windows NT, macOS with version mapping
  • Flags bots and crawlers (Googlebot, HeadlessChrome, etc.)

Common use cases

  • Debugging user-agent sniffing in analytics
  • Investigating suspicious traffic patterns
  • Testing responsive design against real UAs

About User-Agent Parser

The User-Agent string is how browsers identify themselves to servers — and it's notoriously messy. The User-Agent Parser decodes any UA into four clean fields: browser name and version, operating system, device type, and rendering engine. It also flags obvious bots and crawlers, which is handy when auditing access logs or analytics.

Frequently asked questions

User-Agent parsing is heuristic by nature — this tool matches the most common patterns and is correct for over 95% of real UAs, but exotic or spoofed strings may be mis-classified.
It flags common bot patterns (bot, crawler, spider, HeadlessChrome, etc.) but sophisticated bots can impersonate normal browsers.

Your files never leave your device

Every tool on Xevon Tools runs 100% in your browser. No uploads, no servers, no tracking. Free forever.

Learn more

Embed User-Agent Parser on your site

Add this tool to your own website, blog, or internal tool page with one line of code. Free to use, no attribution required (but appreciated).

<iframe src="https://www.xevontools.com/embed/user-agent-parser" width="100%" height="640" style="border:1px solid #e2e8f0;border-radius:12px;" title="User-Agent Parser — Xevon Tools"></iframe>
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