Bolt.new is an AI-powered full-stack web development platform created by StackBlitz that enables users to prompt, run, edit, and deploy full-stack applications directly in the browser. The platform combines a powerful AI code generation engine with StackBlitz's WebContainer technology, which runs a complete Node.js environment in the browser without requiring any local setup, cloud VMs, or Docker containers. Users describe what they want to build in natural language, and Bolt.new generates a complete application with frontend, backend, and configuration files, then runs it immediately in the browser. The platform supports a wide range of frameworks and technologies including React, Next.js, Vue, Svelte, Astro, Express, and more. What makes Bolt.new unique is the real-time preview — users see their application running as it's being built, and can interact with it immediately. The AI can install npm packages, configure build tools, create database connections, and handle project scaffolding automatically. Iterative development through conversational prompts allows users to add features, fix bugs, and modify their application continuously. Built-in deployment through Netlify enables one-click publishing. The combination of browser-based development, immediate preview, and AI code generation creates a remarkably frictionless development experience. Bolt.