Random User-Agent String Generator
Generate a realistic, randomized User-Agent string — useful for testing browser-detection logic, analytics parsing, or request headers.
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How the Random User-Agent String Generator works
Each string follows the real structural format actual browsers send — including the historical 'Mozilla/5.0' prefix every modern browser still includes for legacy compatibility — modeled on genuinely common current browser, OS, and device combinations, so parsing and detection logic gets tested against realistic input rather than arbitrary text.
How to use it
Frequently asked questions
Are these real User-Agent strings from actual users?
No, they're constructed to match the real format and common current version combinations, not captured from actual traffic.
Can I use this to bypass a website's bot detection?
This tool is intended for testing your own code's handling of different User-Agent values, not for evading detection systems on third-party sites.
Will the versions stay current over time?
Browser versions shown reflect roughly current releases at the time of writing; exact version numbers will drift out of date as browsers update, though the format stays valid for testing purposes.