i3status is a small, efficient program for generating status bars compatible with i3bar, dzen2, xmobar, and similar tools. It minimizes system calls to enable frequent updates (typically once per second) without excessive CPU consumption or energy drain. The project is written in C and depends on libraries including libconfuse, libyajl, libasound2, libnl-genl-3, and optionally libpulse for PulseAudio support. i3status is developed by the i3 project.