Where do I get a User-Agent string?
From browser DevTools Network headers, server access logs, or JavaScript navigator.userAgent.
User-Agent Parser
DevTools User-Agent Parser identifies browser engine, version, operating system, and device type from UA strings—useful for compatibility work and log analysis.
User-Agent Parser
Parse User-Agent strings to identify browser, operating system, and device information.
- Browser
- Google Chrome
- Version
- 138.0.0.0
- OS
- macOS
- Device
- Desktop
- Engine
- WebKit / Blink
About this tool
Server logs, analytics, and risk rules often depend on User-Agent. Paste a UA string to see structured fields instantly.
How to use
- Paste a User-Agent string.
- Click Parse.
- Review browser, OS, and device fields.
FAQ
How accurate is UA parsing?
Based on common UA rules. Obscure crawlers or custom clients may show as Unknown—combine with other signals.
Is parsing done on a server?
Parsing runs locally in your browser.
Is this tool free?
Yes. No sign-up required.
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