User agent parser
Use User agent parser to inspect a browser identification string. Review browser, operating-system, and device details, with examples and parsing limitations.
User agent parser
User agent parser reads a User-Agent string and reports recognized browser, operating-system, and device-type details. Use it to compare identification from a support ticket or request log. The input may initially contain your current browser string, so replace it when investigating another device instead of analyzing the default accidentally.
How to use User agent parser
- Paste the complete User-Agent string, preserving punctuation and version tokens.
- Submit it and review the browser name, version, operating system, and device type.
- Compare the fields with the original report and note missing or uncertain values.
A practical example
When two support reports describe different behavior, parse each supplied string separately. Desktop and mobile identifiers may suggest a testing difference, but confirm the issue on the actual devices before assigning a cause. Keep each result associated with its source report to avoid mixing two investigations.
Limitations
A User-Agent is a reported identifier, not proof of hardware, identity, or supported features. Strings can be reduced, modified, or unrecognized by the parsing library. Treat empty fields as unknown rather than filling them with assumptions, especially when writing troubleshooting instructions for someone else.
Common questions
Does this test the browser directly?
No. It interprets the supplied text rather than running feature tests on the device described in that text.
Can an unknown version be recovered?
Only information recognized from the string can be shown. Ask for the original report when important details are absent.
Related tools
If your investigation also concerns requests, inspect HTTP headers lookup. Use URL parser for address components and URL decoder for a separate encoded-text check.
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