Top 20 open-source products relevant to Communication 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

Matrix is an open standard for decentralized persistent communication over IP.

Open Source

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

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.

Open Source

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

Open Source

Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.

Open Source

The #1 CPaaS Solution for Small, Medium & Enterprises.

Open Source paid Free Trial

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

Open Source

Seamless Real-Time Chat Integration for Your Applications.

Open Source freemium $109.0 / Monthly (Based on the Monthly Active Users (MAUs))

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

Open Source

🚀 SimpleX - the most private and secure chat - now with double ratchet E2E encryption!

Open Source

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

Open Source

Prosody is a modern flexible communications server for Jabber/XMPP written in Lua.

Open Source

Open Source private chat server. Your own private Chat server in minutes, plus additional features.

Open Source

is the open standard for messaging and presence.

Open Source

Free and open-source SIP/VoIP Client.

Open Source

Screensharing, online meetings & web conferencing without data leaks.

Open Source