WhatsApp, Telegram, Signal, Pidgin, X-Lite, Viber, Matrix.org, Threema, Tox, Zulip, XendApp, Jitsi Desktop, Gajim, Libon, YAATA SMS, Talkonaut, QuteCom, BitMail, Kopete, Gryphn Secure Text Messaging, SumRando Messenger, GYachI, Jabbin, yaxim, BeejiveIM, GoldBug, Bopup Messenger, Jasmine IM, Jabiru, Hg10, Q-municate, Speeqe, Bravis are some alternatives to Xabber.