Free tools

User Agent Parser

Parse a User-Agent string into browser, OS, device, CPU, and engine details. Supports bulk parsing and exports JSON or TSV — runs locally in your browser.

User-agent input
Tip: Paste multiple user-agents (one per line) to parse in bulk.

User agent parser

Parse a User-Agent string into structured fields like browser name/version, operating system, device model/type, CPU architecture, and rendering engine. Works entirely in your browser.

How to use

  1. Paste a User-Agent string (or multiple, one per line).
  2. Choose an output format.
  3. Click Parse user-agents and copy the result.

Output formats

  • Pretty JSON — best for humans (indented)
  • Compact JSON — best for logs or small payloads
  • Summary (TSV) — paste into spreadsheets (one UA per row)

Common uses

  • Debug analytics/device reports
  • Normalize logs into structured data
  • Identify bots vs real browsers (best-effort)

Limitations & notes

  • User-Agent strings are not a secure signal and can be spoofed.
  • Some modern browsers reduce or freeze UA details; results may be less specific than expected.
  • This tool parses the string only; it doesn’t “detect” the real device behind the request.

Privacy

Your input is processed locally in your browser. Nothing is uploaded to a server.

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CIDR Subnet CalculatorCORS Header CheckerHSTS Header GeneratorHTTP Status Code LookupMIME Type LookupURL Parser

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