Marblism is a tool designed to help developers quickly launch React and Node.js applications. It automates the generation of front-end pages, back-end API endpoints, and database schemas using AI. Features include integration with OpenAI API, real-time events, and AWS S3 for file uploads. Users can customize the generated design system and code, with ownership of the final codebase. Marblism offers various pricing tiers, including a free starter pack and paid options for more app generations and iterations.