UserAgent Parser
Parse and analyze User-Agent strings
Input
What this tool does
Parses any User-Agent string into structured data: browser name and version, operating system, device type (mobile/tablet/desktop), rendering engine, and CPU architecture. Runs fully client-side.
Who it's for: Developers segmenting traffic, analysts profiling user bases, and security teams tracking unusual agent strings.
When to use
- •Inspect a suspicious User-Agent from access logs.
- •Verify a bot's UA string matches its claimed identity.
- •Profile a specific device model reported by a customer.
- •Parse User-Agents in bulk for analytics reports.
How it works
- 1Paste any User-Agent string.
- 2Regex patterns extract browser, OS, device.
- 3Your current browser's UA is pre-filled.
- 4No data leaves your device.
Tips
- •User-Agent strings can be spoofed trivially - never trust them for security.
- •Modern browsers are reducing UA detail (UA-CH is the replacement).
- •Mobile / Tablet / Desktop classification is heuristic, not perfect.