Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

A versatile multi-modal chat application that enables users to develop custom agents, create images, leverage visual recognition, and engage in voice interactions. It integrates seamlessly with local LLMs and commercial models like OpenAI, Gemini, Perplexity, and Claude, and allows to converse with uploaded documents and websites.

Rocket.Chat mobile clients

A chat application designed specifically for playing RPGs.

A modular Garry's Mod chat addon for both users and developers. (EOL 2025)

🤖 Apps that utilize the astounding power of ChatGPT or enhance its UX

🦁 Brave Search add-on that brings the magic of ChatGPT to search results (powered by GPT-4o!)

Document Chat is the privacy-first chatting solution for collaborative work on XD documents. Ideally used with XD's "Live Coediting" feature.

Take control over your live stream video by running it yourself. Streaming + chat out of the box.

🐀 A link aggregator and forum for the fediverse

This project is currently in development, and i use Ktor for the backend.

Your AI second brain. Get answers to your questions, whether they be online or in your own notes. Use online AI models (e.g gpt4) or private, local LLMs (e.g llama3). Self-host locally or use our cloud instance. Access from Obsidian, Emacs, Desktop app, Web or Whatsapp.

The communications platform that puts data protection first.

IC-hat the first working free no-ads open-source chat

🤯 Lobe Chat - an open-source, modern-design LLMs/AI chat framework. Supports Multi AI Providers( OpenAI / Claude 3 / Gemini / Ollama / Bedrock / Azure / Mistral / Perplexity ), Multi-Modals (Vision/TTS) and plugin system. One-click FREE deployment of your private ChatGPT chat application.

Unofficial open source mtproto server written in golang with compatible telegram client.

A programming framework for agentic AI. Discord: https://aka.ms/autogen-dc. Roadmap: https://aka.ms/autogen-roadmap

2D RPG AI game

(M) Highly optimized, extremely modular and very flexible XMPP/Jabber server

Sandesh - A Chatting Application