MERN.AI is a full stack web application development platform which leverages Artificial Intelligence (AI) to simplify the development process. The primary feature of MERN.AI includes an AI chat feature that generates MERN stack applications and websites. This tool offers users the ability to preview their application in real-time and also provides a switch to Code mode for those desiring full control over their coding process. In addition, it hosts a built-in Integrated Development Environment (IDE) for collaboration and code editing. With MERN.AI, deployment of projects is designed to be time-efficient. The platform promotes a smooth transition between real-time Preview and Code modes for convenient alternation between viewing instant results and having full coding control. MERN.AI aims to greatly reduce the time required for developing and deploying applications. Although it primarily uses an AI-driven approach for development, it still offers users the option to manage and edit their own code within the platform's in-built IDE.