Open Source Messaging Platforms

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.

BeeBEEP is a secure (encryption based on Rijndael Algorithm, AES) peer to peer office messenger. You can talk and send files with all your colleagues inside a local area network such of an office, home or internet cafe without a server. BeeBEEP works also with VPNs. This serverless application is indispensable in all those places where privacy and security an essential requirement. For more info visit: https://www.beebeep.net

Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.

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.

Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.

Kadu is a dynamically evolving instant messenger compatible with the Gadu-Gadu and XMPP protocol. It can be run on all platforms supporting the Qt toolkit.

GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971

EZ Intranet Messenger is designed to work within a LAN segment, without the presence of centralized server. Its primary goal is to provide instant messaging service, along with online status notification, file transmission, and real time public chat.

Ayttm is an instant messenger program, supporting various protocols such as MSN, Yahoo, AIM, Jabber, and more. It is the heir of the Everybuddy project, and aims to continue improving the program and addressing its shortcomings.

Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html

Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.

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.

BIV is an simple instant messenger for linux systems. It contains a server and a client using a special protocol.

Does not work because there is no master server! A P2P Messenger which uses JXTA. It provides secure RSA/AES end-to-end encryption and VoIP-Capabilities.

An instant messenger network (including client and server) using Web services technology for communication. Makes use of external Web services for automatic translation of text messages between different languages. Client written in Java, server in C#.

Ice Messenger is a small Chat, where you talk about something with your friends our other people. Ice Messenger you can allready use at your office and other places. It has written in Java and so you can use it one all platforms which can use Java. Here are a few: Windows, Linux, Unix, Solaris, Macintosh and more. This application is in the first version and so it has much of errors and other bugs! Describe your bugs and errors in the forum.

InterFace is a social network chat and messenger Addon for the open source web Browser http://dooble.sf.net based on lib-rs. The Messenger includes a Chess Game, Email Client and Groupchat. It is an open source Social Network. Play Chess Online with and against your Friends in this Messenger. Many Chess Clubs use it for Online Communication and Chess with Friends. Students use it for the group chat function with friends from the campus. The Email Solution offers spam free emails as only defined (whitelisted) friends are allowed to post into the mailbox. InterFace is the communication suite as well including a Forum Function like a Bulletin Board. InterFace is based on Qt and c++ and can easily be used as a Plugin-Tab in any Qt Frame Host or other Qt App. It is based and a clone of Lib RetroShare Messenger. Currently this Friendslist is used in the Qt Browser Dooble as a Tab. See http://dooble.sf.net for more.

JXTA Instant Messenger (J.I.M) is a project that aims to establish a server free, pure P2P Instant Messaging system. It is based on Java, JXTA (www.jxta.org) and the Java Cryptography Extension JCE and provides a nice Swing based GUI.

A server-free chat for local networks.

A CrossPlattform Instant Messenger written in Java, brings its own small Server and allows people to communicate in a LAN with static IP-Adresses. Current release has support for ICQ and AIM, more will follow. Want to contribute? Mailto project admin.

"Mibew Messenger" - is unique software allowing visitors of your site to chat with your operators. This repo should be treated as an obsolete. For modern version of Mibew Messenger see https://sourceforge.net/projects/mibew/

Output Messenger is a distraction-free collaboration tool which brings all your communications at one place. You can avail persistent chat rooms, one-to-one chat, searchable chat history, file sharing via drag & drop and clipboard , Hotkeys etc. This intranet messenger provides you centralized control on user groups and client settings . Moreover, its now having in-built private social network.

Multiprotocol plugin-based instant messenger for X11 (optionaly support KDE), Windows and MaxOS X.

Scribis is an instant messenger for the ICQ, MSN, Jabber Network. Scribis runs on SkyOS (www.skyos.org) and uses its native UI called SkyGI.

With the program Send2User messages can be send in a network.The users receive a html popup window with the imformation on their desktop or as email, if they are working outside the network. Messages can be send to single users, defined groups or to all people in your network.The combination of single users and groups as receivers for one message is possible.You can format the message text, insert images, append attachments and use templates for recurrent message contents.