Group Chat Softwares and Apps

Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed. ...more

Signal is the most scalable encryption tool. ...more

Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption. ...more

Riot allows teams to communicate across a wide range of collaboration apps. ...more

Jitsi Meet is an open-source (Apache) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, scalable video conferences. ...more

Echoplexus is an anonymous, web-based, IRC-like chatting platform that makes its best effort to respect your privacy. ...more

kune is a distributed social network software. ...more

Openfire (Wildfire, Jive Messenger) is an instant messaging (IM) and group chat server that uses XMPP server written in Java. ...more

Gajim is an instant messaging client for the XMPP protocol which uses the GTK+ toolkit. ...more

Zulip is a chat and collaborative software. ...more

Apache Spark is an open-source cluster-computing framework. ...more