UADetector is a library to identify over 190 different desktop and mobile browsers and 130 other User-Agents like feed readers, email clients and multimedia players. In addition, even more than 400 robots like BingBot, Googlebot or Yahoo Bot can be identified.

The UADetector library is a free, portable Java library to analyze User-Agent strings. The goal of this library is to detect the type and the associated operating system of a client like "Mobile Firefox 9.0" on "Android" or "Mobile Safari 5.1" on "iOS".