Bolt.new (by StackBlitz) is an AI-powered full-stack web application builder that generates, runs, and deploys complete web applications from natural language descriptions. Unlike basic code generators that produce snippets, Bolt.new creates fully functional apps with frontend, backend, database integration, and deployment — running in a live browser environment you can interact with immediately.

What Bolt.new Actually Does

When you describe an app to Bolt.new, it:

Generates a complete project structure (React/Next.js, Vite, or other frameworks)
Runs the app live in a browser-based environment (powered by WebContainers)
Allows you to interact with the running app immediately
Lets you iterate with follow-up prompts: “Add user authentication” or “Make the table sortable”
Exports code or deploys to Netlify, Vercel, or other platforms

The key differentiator: the app runs in your browser while being built — you see changes instantly without any local setup.

Getting Started

Visit bolt.new
Describe your application in the prompt bar
Wait 30-90 seconds for generation and startup
Interact with the live app
Refine with follow-up prompts

Free tier: Limited daily credits (generous for experimentation) Pro ($20/month): Unlimited generations, faster models, larger context

Effective Prompting

The quality of your initial prompt significantly impacts the result. Be specific about:

Less effective: “Build me a to-do app”

More effective: “Build a React to-do app with: task creation form (title + description + due date), task list with checkboxes to mark complete, filter by status (all/active/completed), local storage persistence, Tailwind CSS styling with a dark theme, and responsive mobile layout”

Provide:

Tech stack preferences (React, Vue, plain HTML)
Specific features with detail
Visual preferences (dark mode, color scheme, layout)
Data persistence requirements (localStorage, SQLite, Supabase)

Example Project Types That Work Well

Dashboards and Data Visualization

Build a sales dashboard with:
- Chart.js line chart showing monthly revenue
- Donut chart for product category breakdown
- Summary cards (total sales, growth %, top product)
- Mock data populated automatically
- Dark theme with blue accent colors
- Responsive grid layout

CRUD Applications

Build a contact manager app:
- Contact list with name, email, phone, company
- Add/edit/delete contacts
- Search and filter contacts
- SQLite database via Drizzle ORM
- React frontend with shadcn/ui components

API Integration Tools

Build a GitHub repository explorer:
- Search for repos by username
- Display repo cards with stars, forks, description, language
- Fetch from GitHub public API
- Loading states and error handling
- Clean card-based layout

Editing and Iterating

After the initial generation, continue with follow-up prompts in the chat:

“Add a dark/light mode toggle in the header”
“Make the table sortable by clicking column headers”
“Add form validation — email must be valid format”
“Extract the API call into a custom hook”
“Add a confirmation dialog before deleting items”

Each follow-up is applied to the running app. Bolt.new maintains the full project context.

The chat panel on the right shows all changes made and reasoning. This is educational — you can see exactly what code was added/modified.

Exporting and Deploying

Export Code

Click “Export to ZIP” to download the complete project with all files. Open locally with:

unzip bolt-project.zip
cd bolt-project
npm install
npm run dev

Deploy to Netlify

Click “Deploy” → “Deploy to Netlify” — Bolt.new handles the build configuration automatically. Apps deploy in under 60 seconds to a live URL.

Deploy to Vercel

Sync your exported code to GitHub → connect to Vercel → auto-deploys on push.

Bolt.new vs. Alternatives

Tool	Strength	Best For
Bolt.new	Full-stack, runs live	Rapid prototyping, full apps
v0.dev (Vercel)	UI components	React component generation
Cursor	Code editing	Developers editing existing code
Replit	Collaborative IDE	Learning, simple projects
GitHub Copilot	In-IDE suggestions	Adding to existing projects

Bolt.new excels at getting from “idea” to “running app” in minutes — it’s the right tool for prototyping, building MVPs, and creating internal tools when you want speed over fine-grained code control.

Limitations

Complex applications may require manual code editing after generation
Very large apps hit context limits — break into smaller features
Database options are limited (Supabase, SQLite, localStorage)
Production apps with complex authentication or payment flows need developer review
Generated code may need optimization for performance at scale

For learning web development, Bolt.new is uniquely educational: it shows the full structure of a real application, which you can then explore and modify. For professionals, it’s a rapid prototyping tool that turns hours of boilerplate setup into minutes.