Bolt.new — Full-Stack App Generator in the Browser

What it is

Bolt.new is an AI-powered development environment by StackBlitz that generates, runs, and deploys full-stack web applications entirely in the browser. You describe what you want in plain English, and Bolt scaffolds the project, writes code, installs packages, and spins up a live preview -- all without a local development environment. It is built on WebContainers technology, which runs Node.js and a filesystem directly in the browser.

Bolt.new targets developers who want to go from idea to deployed application rapidly. It supports React, Next.js, Vue, Svelte, Astro, and other modern frameworks.

How it saves time or tokens

Bolt.new eliminates local environment setup entirely. There is no need to install Node.js, configure package managers, or manage dependencies locally. The entire development loop -- code generation, dependency installation, build, and preview -- happens in the browser in seconds. Iterative changes are applied by describing what you want in natural language.

How to use

1. Visit bolt.new in your browser.
2. Describe your application: 'Build a task management app with Kanban board, user auth, and dark mode.'
3. Watch Bolt generate the code and run a live preview. Iterate by describing changes.

Example

Prompt: 'Build a recipe sharing platform with:
- User registration and login
- Recipe creation with photo upload
- Search by ingredient
- Rating and reviews
- Responsive design with Tailwind'

Bolt generates a complete Next.js application with authentication, database models, API routes, and a styled frontend. The live preview runs immediately in the browser.

# After generation, deploy with one click
# Or export and run locally:
npx degit my-bolt-project ./my-app
cd my-app && npm install && npm run dev

Related on TokRepo

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Common pitfalls

• WebContainers have limitations compared to native Node.js; some npm packages with native bindings may not work in the browser environment.
• Generated code quality varies with prompt specificity; detailed descriptions produce better results than vague ones.
• Complex backend requirements (databases, authentication providers) may need manual configuration after exporting from Bolt.