Open Source Chat Software

See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.

Psi is a cross-platform powerful XMPP client designed for experienced users. Psi+ is a development branch of Psi XMPP client. Previously is was a sort of fork but now just consider it as a space for nightly builds.

Ares Galaxy is a free, open source BitTorrent and chat program that uses its own decentralized supernode/leaf network. Ares Galaxy has a simple, quick access interface with a built in audio/video viewer. Ares allows you to share any digital file including images, audio, video, software, documents, etc. You may now easily publish your files through the Ares’ peer-to-peer (P2P) network. As a member of the virtual community, you can search and download just about any file shared by other users. The latest versions also support the BitTorrent protocol and Shoutcast radio stations.

phpMyChat-Plus is an easy-to-install, easy-to-use multi-room PHP/DB chat. It is currently available for MySQLi, MariaDB, PostgreSQL, and ODBC. It supports IRC-like commands, moderators, is available in 24 languages and fully compatible with php7.

emesene is a platform independent instant messaging client for the Windows Live Messenger (tm) network. emesene is distributed free of charge under the GNU General Public License 2 or any later version.

Adium is an Open Source, multi-protocol instant messaging application for Mac OS X. Adium supports AIM, ICQ, Jabber, MSN, Yahoo!, Google Talk, Bonjour, Gadu-Gadu, Novell Groupwise, SIP/SIMPLE (Text), and Lotus Sametime. Additionally, it supports all of these applications at once so, even if you have multiple IM accounts, you don't have to log into each account separately.

A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.

Openshell project is to make everyman easily use pc.It maybe have many gui clients.Everyone have one purpose. Now active project is opener_chat.You can download it and test it. Our groups is http://groups.google.com/group/opener-com-work-team/

PacketStorm is a Perl script to dump and analysis network packets.

A powerful web chat server suite built using OO techniques whith the ACE(ADAPTIVE Communication Environment) framework, Supports text chat features, auido,video chat planning.

A framework for creating java GUI application by defining GML(Graphics Markup Language) only drag and drop GUI component in CS3 software. After define GML this software can generate source code automatically comply with the framework(View,Modal,Controlle

Campus Source is a campus-oriented IM solution, including client, server and other expandable add-ons. It's base on C# and .Net Framework.

This is a remote-client programe based on MSN messenger. It can do many things for you.Such as file operation,db operation and chat robot.All these are based on MSN cha.

A QQ Client for Linux/Unix OS. It is wirrten in C.

Cosea: the project about studying the supporting technology for ActiveX control running on Linux.

Eva is an IM client in KDE under Linux using QQ IM protocol to communicate with other clients like Tencent QQ under Windows, Gaim with OpenQ plugin or LumaQQ written in Java.

ExtremeTalk(XT)是一个用于企业或者组织内部进行在线通讯的，基于XMPP(Jabber)协议的即时通讯系统。ExtremeTalk(XT) is an Instant Messaging(IM) collaboration platform based on XMPP(Jabber) for enterprises and organizations

KMess is an MSN/Live Messenger compatible chat client for Linux. The strength of KMess is it's integration with the KDE desktop environment, focus on Live Messenger specific features and an easy-to-use interface.

An IM Software.It's now under developing.

We work in the WAN just like in the LAN. Let's start working with LetZ. LetZ starts working!

This is a Chinese Language Aritficial Intelligence project.This project provide a chatbot that can talk with users in Chinese.

LinQ is an instant messaging system based on the Jabber/XMPP protocol. Both server and client are included. We specifically aim at highly extensibility and efficiency of the software.

LinQ is a full-featured instant messaging client based on the famous XMPP/Jabber protocol. It has a friendly user interface for end users, and a very flexible framework for developers to extend existing features.

LumaQQ is a powerful QQ client writen in Java. It implements most functions of QQ, and a QQ-like graphical user interface for easy use. It's also a library, it has a reusable pure Java core on which you can build your own QQ-compatible application.

The Mobility Project wants to make communication simplier and more secure. We use Free (as in Freedom) Software to create tools that are powerful, but also intuitive.