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.

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.

[IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.

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.

Nested commands, easy configuration, and an incredibly flexible and easy-to-use plugin system distinguish Supybot from other IRC bots. There simply isn't a more flexible or easier to use IRC bot!

FMA is a SMS Manager, Mobile Phone Monitor, Remote Control Agent, Phonebook Manager, Organizer, Fun and much more; whatever you want it to be, it is whatever a mobile phone should have :-) (Currently based on Sony Ericsson features set).

AChat enables you to chat on your local network (LAN). But you can also share entire directories or send specific files, show images to other users and send messages even to users who are currently offline. Everything with full Unicode support.

a jabber (instant messaging) client running atop emacs.

TundraDraw is a cross-platform ANSI drawing program written with C++, using the Qt Toolkit. Thus, it runs natively on both X environments and Windows. It features network connectivity to allow artists to draw together over the Internet.

Coccinella is a free and open-source cross-platform communication tool with a built-in whiteboard for improved collaboration with other people.

A plugin for Pidgin which translates LaTeX code into images in your IM and Chat conversations.

FSociety is a decentralized desktop messenger built on the Nostr protocol. It provides encrypted direct messages and private communities, Nostr identities and profiles, contacts, encrypted file and media sharing through Blossom, and live relay-health monitoring.

To provide Polish translation of all Mozilla.org products...

Chat program that is currently in development. Started as a LAN chatting program which was expanded to a internet/LAN chat programis. Features are: Port Changing, Connect to any IP, File Send, Save/Export ChatLog, Sound. MultiUser, AIM also to come

XDCC Search alows you to quickly search IRC listing web sites. XDCC Search will download all pages of the searchs and place the results in to a table. When you wish to download an item your IRC Client that accepts irc:// protocols will be launched.

JMSN is a pure Java Microsoft MSN Messenger clone, including Instant messaging, File Send/Receive, msnlib (for developers), and additional chat log etc. JMSN has many interesting features that MSN doesn't have.

This is a project aimed at producing a file-sharing and chatting client using the ADC protocol. It also supports connecting to the Direct Connect network.

lilyPAD is a Tcl/Tk client for the lily CMC that includes features for programmers as well as multi-windowing and coloring for ordinary users.

Can't download Meebo chat logs? Shot that Adium duck? Pidgin poop? Log2Log: The all-in-one solution to chat log conversion!

JML is a java Msn Messenger library that supports MSNP8-MSNP15. It is optimized for multiple users and is intended to be very easy to follow and use.

Rho-Bot is a computer-generated opponent for the Sierra/Valve game Half-Life. Developed and managed by Jonathan Yaniv.

MiniTik is a minimalist AOL Instant Messenger client written in Tcl/Tk. MiniTik evolved directly from Tik 0.75 (the last AOL release) and continues the legacy of the minimalist patch that I started early in Tik's open-source development cycle.

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

Visual IRC is a feature-rich, fully customizable IRC client for Windows. Multiple server support, a powerful scripting language, a clean interface, and DCC whiteboard are just a few of the features that define this unique program.