Kadu
Kadu is an open source Jabber/XMPP and Gadu-Gadu instant messenger client for Linux, *BSD, Mac and…
18 Alternatives To Kadu
Adium
Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Amity
Amity’s Customer Relationship Hub simplifies customer success management.
Digsby
Tagged makes it easy to meet and socialize with new people through games, shared interests, friend suggestions, browsing profiles, and much more.
Disa
Disa is your new messaging hub.
Discord
Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
Facebook Messenger
Facebook Messenger is a faster way to message.
Gajim
Full featured and easy to use Jabber client
ICQ
ICQ is one of the oldest instant messengers.
IM+
Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Goo…
Kopete
Kopete is an instant messenger supporting AIM, ICQ, MSN, Yahoo, Jabber, IRC, Gadu-Gadu, Novell…
Maadly
Maadly is a social networking app where users share snippets of their everyday lives to others from…
Messenger Lite
Lite version of Facebook Messenger
Miranda NG
Miranda NG is a successor of a popular multi-protocol instant messaging client for Windows - Miranda IM. Very light on system resources and extremely fast.
Nexmo
Nexmo is a simple two way SMS API with global reach and wholesale rates
Pidgin
Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
Psi
Psi is a multi-platform and standards-based instant messaging client available for Windows, Linux, Mac and more.
Trillian
Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.
irssi
Irssi is a terminal based IRC client for UNIX systems.