The program loads itself into the background and monitors user input. If an entered character sequence is uncommon in the current user input language, then xneur changes the keyboard layout, and rewrites the (possibly incomplete) word in the more appropriate language. For example, the incorrect "Dbrbgtlbz" will be changed into the Russian for "Wikipedia" ("Википедия"), and vice-versa, "фззду" will become "apple".
The user can add new words or character sequences into the program's dictionary, and can manually change languages with a keyboard shortcut. Automatic detection can be disabled, leaving only manual switching.
X Neural Switcher is divided into two parts:
* xneur server works as a daemon in a basic X Window System
* graphical frontend gxneur (for GNOME, uses GTK+) and kxneur (for KDE, currently in development)
X Neural Switcher was added to ALT Linux, Russian SuSE club, Debian, some FreeBSD ports and some Russian Ubuntu repositories.