Browse free open source Chat software and projects for Linux 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 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
Development toolkit for Web Services and XML data bindings for C & C++
Psi+ Project — development branch of Psi XMPP client
A patched version of discord, with bot login support
Take control of your Discord experience with GoofCord
Standalone chat system developed in php, mysql and javascript
Mattermost Desktop application for Windows, Mac and Linux
The first messaging platform operating without user identifiers
Low-latency, high quality voice chat for gamers
WhatsApp library for NodeJS that connects through the browser app
Tiny alternative Discord client with a smaller footprint and support
Java wrapper for the popular chat & VOIP service
Elegant Facebook Messenger desktop app
Private messenger for Windows, Mac, and Linux
VICIdial Contact Center Suite
Free and Open Source messaging and emailing app
Desktop application for Instagram DMs
Mumble is an open-source, low-latency, high quality voice chat
Open source machine learning framework to automate text conversations
for Adium, Pidgin, Miranda and Telepathy IM Framework