WebChat is an innovative tool designed to run a variety of open-source Large Language Models (LLMs) locally in the browser using advanced WebGPU technology. This application prioritizes data privacy by eliminating server-side processing, ensuring that all interactions and data remain secure and local. Website visitors can seamlessly select their preferred model, whether it be Gemma, Mistral, or LLama3, and engage in intelligent conversations without needing an active internet connection. This makes it an excellent solution for experimental AI dialogues while maintaining user privacy, and offers a unique, interactive layer to the exploration of AI functionalities right from one's web browser.