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🌐 User-Agent String Parser & Browser Inspector

Parse and inspect User-Agent HTTP headers to detect browser name, version, operating system, rendering engine, and device type in real-time. 100% client-side.

Presets:
🌐 Browser NameDetecting...
🔢 Browser VersionDetecting...
💻 Operating SystemDetecting...
⚙️ Rendering EngineDetecting...
📱 Device FamilyDetecting...
🤖 Bot / Crawler?Detecting...
❓ Frequently Asked Questions

What information is contained in a User-Agent (UA) string?

A User-Agent string contains structured metadata sent by your browser to web servers, detailing the browser name, version, operating system, device family, and rendering engine.

Can I parse user-agent strings for mobile devices or search engine bots?

Yes! You can paste any custom UA string or use our quick presets to inspect iPhone Safari, Android Chrome, iPad, desktop browsers, or Googlebot crawlers.

Is my browser User-Agent or IP sent to external servers?

No. All User-Agent string parsing and client browser attribute inspection take place 100% locally inside your web browser.

Tool authorHelpMini
🗓️ Updated 2026-08-22

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