Open Source Java Chatbot Software

Chat4Us-Creator is a lightweight open-source cross-platform chatbots creator that handle Q/A and AI-driven conversations. Escalate to human agents when needed through a messenger app. Chatbots can be created using the graphic nodes editor from basic to advanced chat flows with the ability to connect them either to local/offline LLMs using GPT4All/Ollama or external API providers like OpenAI, DeepSeek or Groq. Requires Java (JRE) 21 or higher installed. Default authentication password: a123456/*

The Business Bot Platform (BBP) - Community Edition is a chatbot platform for private and professional chatbots. It provides support for Facebook Messenger, Signal, Slack, Telegram, Microsoft Skype for Business, Threema and XMPP. The Business Bot Platform Community Edition provides a software solution for chatbot applications developed with Java. It is designed to be easy to use (pluggable chatbots) and extensible as well as integrate in your chatbot application without knowledge about various instant messenger APIs. It is flexible through its plugin architecture and has a repository for chatbot applications (e.g. Wikipedia, Wiktionary, Calculator) which are installable by one-click. Also supporting RiveScript and AIML 2.0. BBP is a web application which handles all incoming and outgoing instant messages and comes with a dashboard for all platform activities. Moreover, it supports artificial intelligence (e.g. Ms LUIS and TensorFlow) BBP is based on Apache, MySQL, and Tomcat