WeeChat is a light & fast multilingual curses-based multiplatform IRC client.

WeeChat supports:
    DCC files and chats, multi-server connections, background connections,
    IPv6, SSL, proxy, auto-reconnection, DCC2, nicklist, window splitting,
    FIFO pipe for remote control, aspell, javascript, perl, python, ruby,
    nick auto-completion, lag indication, auto-logging, client upgrades without
    dropping connections.

WeeChat will build with support for:
    aspell, javascript scripting, perl scripting, python scripting, ruby scripting,
    lua scripting, guile scripting, and gnutls depending on whether or not they are
    installed on the system on which WeeChat is built.