stoneChat: An LLM Web Chat Built Natively for IE6/Windows XP A developer created stoneChat, an LLM web chat client designed to run on Windows XP with Internet Explorer 6. The frontend is compatible with IE6, while a PHP server handles chat requests and stunnel provides HTTPS support for modern APIs. Models are configured via an INI file supporting OpenAI-compatible endpoints. stoneChat is a locally hosted LLM web chat client built specifically for Windows XP-era machines and Internet Explorer 6. The frontend remains compatible with IE6. A small PHP server handles the chat requests, while stunnel provides HTTPS support for modern API endpoints. Models are defined in an INI file. Each model can have its own API endpoint, API key, model ID, streaming setting, token limit, and timeout. OpenAI-compatible APIs are supported. The same configuration file also manages users, model access, language preferences, and keyboard behavior. stoneChat runs on Windows with PHP 5.4 or newer and starts through RUN.cmd. GitHub: https://github.com/Water-Run/stoneChat https://github.com/Water-Run/stoneChat License: WTFPL