Top 15 open-source products relevant to Messaging and Chat

Fast, simple & secure messaging. Privacy that fits in your pocket.

Open Source

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Open Source free

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Open Source

Private & Secure Messenger.

Open Source

Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.

Open Source

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Open Source

Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...

Open Source

Be more productive with Twake : the collaborative work platform to organize and manage all your projects on a single platform.

Open Source freemium

Linphone is an internet phone or Voice Over IP phone (VoIP).

Open Source

Dino is a modern open-source chat client for the desktop.

Open Source

Free and open-source SIP/VoIP Client.

Open Source

Screensharing, online meetings & web conferencing without data leaks.

Open Source

spreed is the worldwide Unified Web Conferencing service offering integrated web- and telephone conferencing.

Open Source

CoyIM is a safe and secure chat client.

Open Source

Psi+ is a development branch of the Psi XMPP client.

Open Source