The software powering Stoat
Server supporting the Signal Private Messenger applications on Android
All your services in one place, built by the community
Home to the Signal Protocol and other cryptographic primitives
Android Chat SDK ➜ Stream Chat API. UI component libraries for chat
Cross-platform chatbot framework made with love
An API to interact with the popular messaging app Discord
The original full-platform IM communication layer framework
Development toolkit for Web Services and XML data bindings for C & C++
VICIdial Contact Center Suite
Desktop communication tool: chat, telephony, multimedia
Software per Call Center
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
URL filter to block unwanted content on the internet
Smoke: Android Crypto Chat Messenger
Free and Open Source messaging and emailing app
Chatbot platform for various instant messenger
IXSF Messenger is a java-based messenger
Open-source XMPP client for Android
BrowserBD is a Java based portable browser app for web browsing/IM
An example of a simple chat system