Open source Chat clients for FreeBSD

Delta Chat

Delta Chat is like Telegram or Whatsapp but without the tracking or central control. Delta Chat doesn’t have their own servers but uses the most massive and diverse open messaging system ever: the existing e-mail server network. (GPL)

Cross-platform

Empathy

Empathy consists of a rich set of reusable instant messaging widgets, and a GNOME client using those widgets. (GPL)

Linux - FreeBSD

Gajim

The goal of Gajim is to provide a full featured and easy to use Jabber client. (GPL)

Linux - FreeBSD - Windows

Jitsi

Jitsi (formerly SIP Communicator) is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, AIM/ICQ, Windows Live, Yahoo! and many other useful features. (Apache)

Cross-platform

Konversation

Konversation is a graphical Internet Relay Chat client (IRC). (GPL)

Linux - FreeBSD

Pidgin

Pidgin is a multi-protocol Instant Messaging client that allows you to use all of your IM accounts at once. (GPL)

Linux - FreeBSD - Windows

6 applications