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+ Project — development branch of Psi XMPP client
Psi IM — Qt-based XMPP client
Development toolkit for Web Services and XML data bindings for C & C++
Dark Mode tốt nhất cho Zalo
A free peer-to-peer (P2P) BitTorrent file sharing client
Low-latency, high quality voice chat for gamers
A smaller, faster, and easier IM client
The pinnacle of file-sharing and chat - an innovative DC client!
An alternative Discord client with voice support made with C++ and GTK
A patched version of discord, with bot login support
The first messaging platform operating without user identifiers
VICIdial Contact Center Suite
An instant messaging client for XMPP networks
Tiny alternative Discord client with a smaller footprint and support
Mattermost Desktop application for Windows, Mac and Linux
Open source machine learning framework to automate text conversations
A private messenger for iOS
Elegant Facebook Messenger desktop app