A free and open source instant messaging and VoIP platform
Distributed instant messaging system for developers
A New Kind of Instant Messaging
A Tox-based instant messaging and video chat client
XMPP for JavaScript
Yet another matrix client
The first messaging platform operating without user identifiers
A Decentralized, Onion Routed, Private Messenger
Scalable real-time messaging server in a language-agnostic way
Elegant Facebook Messenger desktop app
WhatsApp library for NodeJS that connects through the browser app
An open-source cross-platform alternative to AirDrop
A universal instant messaging (IM) program
Matrix reference homeserver
Build and deploy a real time chat application
Keybase Go library, client, service, OS X, iOS, Android, Electron
Development toolkit for Web Services and XML data bindings for C & C++
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
32/64 bit multi-platform Modbus communication library
Cerberus Content Management System
rabbit instant messaging
Instant messaging server for the Extensible Messaging
Discord Messaging Panel that allows you to message inside of a bot
Tool for building chat bots, apps and custom integrations
The no-code platform to automate conversations