Conversational Form - Turning web forms into conversations. By SPACE10
Openfire - Openfire (formerly Wildfire) is a cross-platform instant messaging (IM) and groupchat server.
BotUI - A JavaScript framework to build conversational UIs 🤖
Bopup Communication Server - Secure instant messaging (IM) and private LAN chat solutions for organizing effective real-time communication system over office LANs, business and corporate large networks, or enterprise-size WANs and VPNs
Snoopforms - The Open-Source Typeform Alternative
ejabberd SaaS - Realtime XMPP and MQTT Software and Infrastructure as a Service.