Bolt.new

Bolt.new is an AI-powered app builder from StackBlitz, the company that spent seven years building WebContainers, a WebAssembly-based runtime that runs Node.js entirely inside a browser tab. StackBlitz launched Bolt.new in October 2024 after recognizing that WebContainers was the ideal runtime for AI-built full-stack apps, growing to $40 million ARR within roughly a year. The platform targets non-developers building working products and developers who want to skip local environment setup entirely.

Key Capabilities:

• WebContainers runtime running a full Node.js development environment client-side in the browser with no server infrastructure

• Prompt-to-full-stack-app generation covering frontend, backend, and database logic from plain English descriptions

• npm package installation and execution including Vite, Next.js, Astro, Tailwind, ShadCN, and React

• In-browser terminal and live preview with direct code editing alongside AI-generated output

• AI prompt enhancer that converts rough ideas into structured technical specifications before generation

• One-click deployment and hosting from within the browser session

• Multi-LLM support with Anthropic Claude as the primary model

• Framework support covering Node.js, React, Next.js, PostgreSQL, and other popular JavaScript stacks

• Mobile app generation alongside web application building

• Open-source codebase on GitHub for developers building their own AI web development agents

• Bolt.diy community variant with deeper customization and multi-LLM flexibility

See Bolt.new pricing details →