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
Telegram Desktop messaging app
Mattermost Desktop application for Windows, Mac and Linux
Development toolkit for Web Services and XML data bindings for C & C++
An alternative Discord client with voice support made with C++ and GTK
Psi IM — Qt-based XMPP client
A patched version of discord, with bot login support
Psi+ Project — development branch of Psi XMPP client
An intranet chat application that does not require a server.
Low-latency, high quality voice chat for gamers
The first messaging platform operating without user identifiers
Feature rich WhatsApp Client for Desktop Linux
Elegant Facebook Messenger desktop app
Mumble is an open-source, low-latency, high quality voice chat
The game engine for everyone
Take control of your Discord experience with GoofCord
for Adium, Pidgin, Miranda and Telepathy IM Framework
The Leading Open Source Communication Hub | Community Version
Private messenger for Windows, Mac, and Linux
VICIdial Contact Center Suite
Open source machine learning framework to automate text conversations
WhatsApp library for NodeJS that connects through the browser app
Tiny alternative Discord client with a smaller footprint and support