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
The FetLife App on Android
An intranet chat application that does not require a server.
Psi IM — Qt-based XMPP client
Psi+ Project — development branch of Psi XMPP client
Development toolkit for Web Services and XML data bindings for C & C++
A free peer-to-peer (P2P) BitTorrent file sharing client
Low-latency, high quality voice chat for gamers
Dark Mode tốt nhất cho Zalo
The pinnacle of file-sharing and chat - an innovative DC client!
A smaller, faster, and easier IM client
Mattermost Desktop application for Windows, Mac and Linux
An alternative Discord client with voice support made with C++ and GTK
VICIdial Contact Center Suite
Standalone chat system developed in php, mysql and javascript
An instant messaging client for XMPP networks
Open source machine learning framework to automate text conversations
WhatsApp library for NodeJS that connects through the browser app
A patched version of discord, with bot login support
Tiny alternative Discord client with a smaller footprint and support
A private messenger for iOS