Utility & Security
User Agent Parser
Parse and analyze user agent strings
Created and maintained by: CalcTago Editorial TeamLast updated: 2026-02-13
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
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Frequently asked questions
What does the User Agent Parser do?
It helps you parse and analyze user agent strings.
What inputs do I need?
Enter Value.
Are decimals supported?
Yes, you can use decimal values where appropriate.
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About this tool
This User Agent Parser turns your inputs into practical results. Provide Value to calculate Browser and Operating system.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.