Bolt.new

What is Bolt.new used for?

Bolt.new is a browser-based tool that generates complete, working web applications from a text prompt. You describe what you want to build — "a recipe sharing app with user accounts, a search bar, and a favorites feature" — and Bolt writes the full-stack code, installs the dependencies, and shows you a live running preview in the same window. It is designed for non-developers, designers, and founders who want to go from idea to working prototype without writing code or setting up a development environment.

Full-Stack Generation With a Live Preview

Bolt supports React, Vite, Node.js, and several popular frameworks out of the box. The generated code is real, production-quality code that you can download, deploy, or hand off to a developer. The live preview updates as Bolt makes changes, so you can see the app evolve in real time. When something needs adjusting, you just describe the change in plain English — "make the header sticky and add a dark mode toggle" — and Bolt rewrites the relevant code. For simple to medium-complexity apps, the results are impressive enough to deploy directly.

Bolt.new vs. Replit AI — which is better for prototyping?

Both live in the browser and generate apps from prompts, but they feel different. Bolt is stronger for generating polished front-end interfaces quickly. Replit is stronger if you need back-end logic, databases, and a persistent development environment you can keep iterating on. The main limitation of Bolt is its credit system — complex or iterative projects burn through credits fast on the free plan. The $20 a month paid plan gives you significantly more runway for serious prototyping.