Browse free open source Chat software and projects below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.
You can message and share files inside your intranet without a server.
A Windows client for the Direct Connect networks
A universal instant messaging (IM) program
ArmCord is a custom client designed to enhance your Discord experience
An alternative Discord client with voice support made with C++ and GTK
An intranet chat application that does not require a server.
Psi IM — Qt-based XMPP client
A patched version of discord, with bot login support
Telegram Desktop messaging app
Psi+ Project — development branch of Psi XMPP client
Development toolkit for Web Services and XML data bindings for C & C++
Mattermost Desktop application for Windows, Mac and Linux
A free peer-to-peer (P2P) BitTorrent file sharing client
A smaller, faster, and easier IM client
The FetLife App on Android
A hex editor for WeChat/QQ/TIM
The first messaging platform operating without user identifiers
Mumble is an open-source, low-latency, high quality voice chat
The pinnacle of file-sharing and chat - an innovative DC client!
Elegant Facebook Messenger desktop app
Low-latency, high quality voice chat for gamers
Tiny alternative Discord client with a smaller footprint and support
VICIdial Contact Center Suite
Take control of your Discord experience with GoofCord