My User Agent

Every browser identifies itself to websites with a user agent string — a line of text describing the browser, version, rendering engine, and operating system. This tool shows you that string exactly as your browser sends it, along with a plain-English breakdown of what each part means (browser name and version, OS, device type). Useful for debugging browser-detection bugs, testing responsive designs, filing bug reports, or verifying that a spoofed user agent extension is actually working.

Your User Agent String
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
User Agent Details Live Detection
Browser -
Browser Version -
Operating System -
OS Version -
Device / Platform Desktop
Screen Resolution
Color Depth
Device Pixel Ratio
Browser Language
IP Address 216.73.216.186
Test Another User Agent

Understand Your Browser's Digital Signature

Every time your web browser requests a page, it broadcasts a client identifier known as a User Agent string. This text string tells web servers your browser version, underlying rendering engine, operating system, and hardware architecture—allowing websites to serve the correct layout, scripts, and optimizations for your device.

The My User Agent tool displays your exact raw User Agent string the moment you open the page, alongside a clean, plain-English breakdown of every parameter inside it.

Key Features

  • Complete Raw String Detection: Inspect the exact, unfiltered User-Agent HTTP header sent by your current client request.
  • Structured Parsing: Automatically extract key metadata into easy-to-read categories:
  • Browser & Version: Identify your software (e.g., Chrome, Firefox, Safari, Edge) and build release.
  • Operating System: Determine your platform (e.g., Windows, macOS, Linux, iOS, Android) and system architecture.
  • Rendering Engine: Reveal underlying layout engines like Blink, Gecko, or WebKit.
  • Device Type: Classify client hardware as Desktop, Mobile, Tablet, or Bot/Crawler.
  • Spoof & Extension Verification: Instantly test user agent switcher extensions or browser privacy masks to confirm your header modification is working.
  • Zero Data Logging: Your user agent header is analyzed on the fly and never stored or linked to personal history.

Common Use Cases

  • Filing Bug Reports: Quickly copy your browser details to include full environment context when submitting issue tickets.
  • Debugging User Agent Sniffing: Verify how server-side routing logic handles custom or legacy user agents.
  • Testing Mobile Emulation: Ensure local developer tools or proxy configurations correctly simulate target mobile devices.

Review your parsed client signature below or click Copy User Agent to capture your complete string instantly.