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
A patched version of discord, with bot login support
Telegram Desktop messaging app
Mattermost Desktop application for Windows, Mac and Linux
An alternative Discord client with voice support made with C++ and GTK
Psi IM — Qt-based XMPP client
An intranet chat application that does not require a server.
Psi+ Project — development branch of Psi XMPP client
Development toolkit for Web Services and XML data bindings for C & C++
The game engine for everyone
Private messenger for Windows, Mac, and Linux
Elegant Facebook Messenger desktop app
Feature rich WhatsApp Client for Desktop Linux
for Adium, Pidgin, Miranda and Telepathy IM Framework
A glossy Matrix collaboration client for the web
Take control of your Discord experience with GoofCord
Low-latency, high quality voice chat for gamers
A New Kind of Instant Messaging
The first messaging platform operating without user identifiers
Mumble is an open-source, low-latency, high quality voice chat
WhatsApp library for NodeJS that connects through the browser app
Tiny alternative Discord client with a smaller footprint and support