UserAgent-Spy

UserAgent-Spy is a WordPress plugin that displays a user's operating system and web browser in the comments section. It uses the comment-agent property to access the UserAgent string and detects the OS and browser through a series of regular expressions. The plugin is customizable, with its own options page where users can change the size of the browser/OS icon and where they want it to be displayed. UserAgent-Spy is published under GPLv3 and has several improvements over the well-known plugin, browsersniff. The development has been moved to GitHub, and users can make feature requests or bug reports.