Desktop Chrome
- Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 -> Chrome, macOS
developer validator
User-Agent Parser
Parse browser, OS, device, and CPU info from user-agent strings locally.
Results
Paste input and validate locally.- Status
- Ready when you validate.
- Details
- Ready when you validate.
- Browser
- Ready when you validate.
- OS
- Ready when you validate.
- Device
- Ready when you validate.
- CPU
- Ready when you validate.
Rules & checks
Uses ua-parser-js client-side.
No network calls; nothing is uploaded.
Returns parsed browser/OS/device/CPU fields when available.
When to use it
- Debug UA-related bugs or feature flags
- Analyze logs quickly without external services
- QA device targeting or A/B tests
Tips
- Differentiate bot UAs (they often include 'bot' or specific vendor strings)
- Treat UA parsing as best-effort; use feature detection when possible
Examples
Mobile Safari
- Mozilla/5.0 (iPhone; CPU iPhone OS 16_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.2 Mobile/15E148 Safari/604.1 -> Safari, iOS, iPhone
FAQs
- Is anything uploaded?
- No. Parsing is local and clears on refresh.
- Are results authoritative?
- UA strings can be spoofed; treat outputs as hints, not proof.
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