User-Agent Analyzer

What Is a User-Agent Analyzer?

A User-Agent analyzer is an online UA identification tool that extracts the browser, operating system, device type and rendering engine from a User-Agent string, and roughly tells whether the request is likely from a crawler or bot. The detection uses heuristic matching, so results are for reference only.

Main Features

• Identify Chrome, Firefox, Safari, Edge, IE and other browsers with versions
• Identify operating systems such as Windows, macOS, Android and iOS
• Classify device types such as phone, tablet, desktop and TV
• Roughly detect crawlers/bots and provide a 64-bit system hint
• Analyze the current browser UA or a demo string with one click

Use Cases & Notes

Useful for log analysis, anti-crawler debugging and integration testing. Heuristic rules cannot cover every UA, so complex or hand-crafted strings may be misidentified.

How to Use

1. Paste a User-Agent string or click Use Current UA
2. Click Analyze
3. Review the browser, OS, device and bot detection results