Web & Network Tools

User Agent Parser & Client Inspector

Analyze any User Agent string to inspect client specifications. Automatically detects browser name, major/minor release versions, operating system, hardware architecture, and rendering engine (Blink, WebKit, Gecko).

User Agent strings are analyzed locally on your device.
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How to Use User Agent Parser & Client Inspector

1

Use Current or Paste UA

Click 'Use My User Agent' to inspect your current browser, or paste any custom UA string.

2

Analyze String

Review categorized breakdown of Browser, OS, Device, and Engine tokens.

3

Export Data

Copy structured JSON specifications for debugging or test logging.

About User Agent Parser & Client Inspector

User Agent strings are HTTP request headers transmitted by web clients to servers. Originally intended for content negotiation, historical browser compatibility workarounds resulted in convoluted strings where modern browsers claim compatibility with 'Mozilla/5.0', 'AppleWebKit', and 'Safari' simultaneously.

Key Features

  • One-click 'Inspect My Browser' button to view your current live User Agent
  • Accurate detection of Chrome, Safari, Firefox, Edge, Opera, and mobile web views
  • Operating System identification: Windows, macOS, iOS, Android, Linux, ChromeOS
  • Rendering engine detection (Blink, WebKit, Gecko, Trident)
  • Bot, crawler, and search engine spider detection (Googlebot, Bingbot, etc.)

Frequently Asked Questions

Modern browsers (like Chromium) are freezing legacy User Agent strings to reduce passive fingerprinting, replacing them with User-Agent Client Hints—structured headers that expose device data only upon explicit server request.
User Agent Parser – Detect Browser, OS & Device Model | Toolxilla | Toolxilla