Bolt.new

Browser AI builder that runs and ships full-stack web apps from a prompt

AI Coding & DevelopmentFree planOverseas★★★★☆ 4.0

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What is Bolt.new?

Bolt.new from StackBlitz turns a prompt into a running web application without any local setup. You describe what you want, it scaffolds a project, installs packages and runs the development server inside the browser using WebContainers, so you can see and test the result immediately and keep refining it in conversation. It supports common frameworks and can connect to services such as Supabase for data and authentication, then deploy the finished app to a hosting provider. The differentiator is that the whole loop of generate, run, debug and publish happens in a browser tab.

Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.

Key features

Prompt to full-stack app with dependencies installed automatically
In-browser Node.js runtime so code runs without local setup
Conversation-based iteration on an existing generated project
Support for popular frameworks such as React, Vue and Next.js
Integrations for databases, authentication and deployment
Download the project or push it to a git repository

Pros & cons

Strengths

No local environment needed to get a prototype running
Fast loop from idea to a shareable working app
Helpful for developers exploring web ideas outside their usual stack

Watch out for

Token-based costs rise quickly on complex projects
Generated code still needs review before production use
Deep customisation eventually wants a local toolchain

Best for & use cases

prototyping, mvps, learning web development, quick internal tools

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FAQ

How does Bolt run code without a server?

It uses WebContainers, which run a Node.js environment inside the browser. Files, packages and the development server all live in the tab, so there is nothing to install locally and the preview updates as the AI edits code.

What does it cost?

There is a free daily token allowance for trying it out. Sustained building consumes tokens, so paid plans exist for heavier use, and complex prompts cost noticeably more than simple edits.

Can I export the project?

Yes. You can download the files or push them to a git repository, then continue in your own editor. That is the usual path once a prototype outgrows what the browser environment handles easily.