Workspaces1/10

User-Agent & Client Hints Parser

Local processing

Inspect reported browser, operating system, rendering engine, device and CPU details locally

User-Agent and Client Hints describe reported values, which may be reduced, frozen, spoofed or changed by compatibility modes. Unknown fields remain unknown. Use feature detection for behavior and a proper security control for access.

Public example

User-Agent stringClient Hints JSON (optional)

Browser	Chrome 131.0.0.0
Operating system	Windows NT 10.0
Engine	Blink Unknown
Device	desktop · Unknown · Unknown
Reported CPU architecture	x86-64 · User-Agent token (reported)
Automation/crawler token	Not detected; this does not establish a human user

Parsed JSON

{
  "browser": {
    "name": "Chrome",
    "version": "131.0.0.0"
  },
  "operatingSystem": {
    "name": "Windows",
    "version": "NT 10.0",
    "versionName": "10"
  },
  "engine": {
    "name": "Blink",
    "version": "Unknown"
  },
  "device": {
    "type": "desktop",
    "vendor": "Unknown",
    "model": "Unknown"
  },
  "cpu": {
    "architecture": "x86-64",
    "source": "User-Agent token (reported)"
  },
  "automationTokenDetected": false,
  "clientHints": null
}

Windows NT 10.0 may also describe Windows 11. Apple Silicon can report Intel Mac. Browser versions and mobile models may be intentionally generalized. Parsing uses Bowser plus reported architecture tokens.

Learn More About This Tool

Related tools

JSON Graph Visualizer

Keyboard Event Inspector

Timezone Planner

Resource Bookmarks

Code Snippets

Tool Tabs