Vacuum-IM

Crossplatform Jabber client. The core program is just a plugin loader - all functionality is made available via plugins. This enforces modularity and ensures well...

Free Open Source Mac OS X Windows Linux Haiku

Jabiru

Jabber client for Android.

Free Android

rq

R&Q is a little instant messaging client for the ICQ protocol, fork of Rejetto's &RQ. It is simple, fast, takes a little more than 1 MB disk space and...

Free Windows

MCabber

MCabber is a small XMPP (Jabber) console client. It includes features such as SASL/SSL/TLS support, MUC (Multi-User Chat) support, history logging, command completion...

Free Open Source Mac OS X Windows Linux BSD Xfce

Caya

Caya is a multiprotocol Instant Messaging client for Haiku. Right now it support: - Google Talk - Jabber - Facebook - MSN Messenger - AOL Instant...

Free Open Source Haiku

climm

climm is a very portable text-mode ICQ clone - it is known to compile under Linux, BSD, AIX, HPUX, Windows, AmigaOS and with restrictions BeOS. Originally written by...

Free Open Source Windows Linux BSD Haiku

OneTeam

OneTeam – simple, secure and easy to use. OneTeam is a versatile instant messaging client that is very intuitive to use. Even people who are new to instant messaging...

Free Open Source Mac OS X Windows Linux iPhone Web

naim

naim is a console client for AOL Instant Messenger (AIM), AOL I Seek You (ICQ), Internet Relay Chat (IRC), and The lily CMC.

Free Open Source Mac OS X Windows Linux BSD

BuddyTalk Instant Messenger

BuddyTalk is a java based instant messanger, you can login with your gmail username and password to chat with your friends or to test the software you can login with the...

Free Windows

Fire

Fire is a multi-protocol instant messenger client for Mac OS X based on freely available libraries for each service. Currently Fire handles AOL Instant Messenger®...

Free Open Source Mac OS X Linux BSD

Minbif

Minbif aims to use the libpurple library from the Pidgin project to provide an IRC-friendly instant messaging client.

Free Open Source Linux

OctroTalk

OctroTalk is an Jabber/Gtalk client with support for GTalk (GMail) audio and Video calls. OctroTalk also supports SIP calling (through a provider of your choice). ...

Free Mac OS X Android iPhone Android Tablet Windows Phone