GPT Web App Generator is a full-stack web application generator based on Wasp, React, Node.js, and Prisma. It helps users quickly create web applications with both front-end and back-end functionality, including a React front-end interface, Node.js back-end logic, and Prisma database integration. This application simplifies the development process by leveraging the power of GPT and the Wasp full-stack framework. Users only need to provide basic information about the application name, description, brand colors, etc. to generate complete web application code.