Open Source Windows Chat Software

DC++ is an open source Windows client for the Direct Connect file sharing network. The DC network is a decentralized network, made up of individual servers (hubs) that users join to share files with other members on that hub. Each hub is individually run by a fellow user of the DC network, and may have certain themes to the content on the hub. Hub owners set up rules to regulate their hub as they see fit.

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.

LAN Messenger is a p2p chat application for intranet communication and does not require a server. A variety of handy features are supported including notifications, personal and group messaging with encryption, file transfer and message logging.

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.

Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming. It includes game linking, so voice from other players comes from the direction of their characters, and has echo cancellation so the sound from your loudspeakers won't be audible to other players.

phpFreeChat is a free, simple to install, fast and customizable chat that uses by default files for message and nickname storage. It uses AJAX to smoothly refresh and display the chat zone and the nickname zone.

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.

"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/

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

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

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.

Magic:The Gathering over LAN or Internet, alone or against another player (need IP of your opponent). The program is the judge : you play with the true rules. Firemox can also emulate another TBS. Written in Java, works on Mac, Windows and Linux.

The Node projects is a collection of simple software that can be of use for you as an everyday internet user. We aim to give you a full suite of products suited to your needs. Projects include Node IRC, Node Browser, Node Torrent and Node Player.

Intelligere SCS is a collaboration system with an integrated web conference system ideal for virtual classroom, e-learning and video conference. In order to view an on-line demo use this address http://tinyurl.com/scsdemo (user and pass 'sfguest').

Real-Time Collaboration (RTC) and conferencing project. This product has been deprecated. Please see the replacement product, CoolCollaborator, at http://coolcollaboratr.sourceforge.net/

[ Please read https://sourceforge.net/p/darkbot/news/2014/01/darkbots-revitalization/ ] Darkbot is a portable IRC chat robot written in the C language that can be taught responses to user inquiries, and even have conversations with them. Darkbot was originally created by Jason Hamilton as an aid for help channels on Intenet Relay Chat.

koizo is an evolution of eMule Plus that was created because of international internet traffic limitations that the main Portuguese ISPs impose on their clients.

CORPORE is an integ. sys. business manag., which covers admin.routines of the company, whether industrial, commercial or provider of services, allowing complete control of inventory, orders, portfolio of customers, managing, promoting decisions & results

Collections for Dummies is a easy application that permits to store and share your collection's

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.

Gachapon Lobby provides an advanced chat system. It was designed for plug-in support, which adds enhancements and customizations. Ideal for online communities to host their own chat service.

JForum is a complete, powerful and multi-threaded forum software. Features include unlimited forums and categories, topic watching, email notification, Private Messages, user ranking, advanced permission schema and moderation options and much more.

Jiaho is a free and open source XMPP/Jabber chat client. It's a web-based application 100% AJAX, built with GoogleWebToolkit and Smack Library.

Jeti is a Java Jabber client that supports most chat features such as file transfer, group chat, emoticons, and formatted messages. It can be used as an application or as a Web applet.