AV-W13
User-Agent Parser
Parse a user-agent string into browser, engine, OS, device and CPU details.
● Runs on your device; nothing is uploadedHow to use it
- Paste a string into User-agent string, or click Use my browser.
- Or click a sample such as iPhone Safari, Android Chrome or Googlebot.
- Read the Browser, System and Device panels and copy any value.
- For your own browser, check Client Hints for the real OS and model.
Limits
- User-agent string
- 4,096 characters
Features
- Browser, engine, operating system, device type, vendor, model and CPU
- Spots crawlers such as Googlebot, Bingbot, GPTBot and ClaudeBot
- Recognises HTTP clients such as curl, Wget and python-requests
- Explains frozen values in reduced user-agent strings
- Reads User-Agent Client Hints in Chromium browsers
For AI agents: avtools_user_agent_parser
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