About
Heuristic UA parsing for browser, OS, and device hints. Entirely in the browser.
How to use
Paste a UA, or use this browser’s UA in one click.
What this tool does
Splits a UA string into browser, OS, and device hints so you can compare logs.
Input and output examples
Paste a full Mozilla/5.0 … line from logs, or use the current browser UA.
Common uses
Debug “this browser won’t open”, compare CDN logs, or tell mobile from desktop.
Limits
Local heuristic parsing. A spoofed UA is believed because only the string is read.
FAQ
Is parsing always accurate?
UAs can be spoofed. The result is a heuristic hint, not a hardware appraisal.
Is the UA uploaded?
No.
Why doesn’t it match analytics?
Parsers differ, and clients may send a reduced UA.
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