Bolt

Bolt Overview

Bolt is an AI app builder for SaaS products generating apps with React.JS, Next.JS, Expo, and Supabase. Generated code is written in TypeScript, JavaScript, and Backend as a Service and uses PostgreSQL and Supabase for data storage. Payments and subscriptions are handled through Stripe. Priced at $25 to $50, Bolt turns a plain-language description into a working application — authentication, database and deployment are provisioned for you, so you can go from idea to live product without assembling a stack first.

Bolt (bolt.new), built by StackBlitz, is an AI app builder that runs the entire development environment in your browser thanks to WebContainers — the AI writes code, installs npm packages and runs a real dev server without any local setup. It generates modern JavaScript stacks (React, Next.js, Vite) and pairs naturally with Supabase for database and auth.

Two things set Bolt apart in the vibe coding field: it can build mobile apps via Expo (a rarity among AI builders), and it exposes the full project — you see and edit every file, then deploy to Netlify or export the codebase. Its token-based pricing rewards precise prompting; sloppy iteration burns credits fast.

Versus a classic SaaS boilerplate, Bolt is the closest to a developer's workflow: it feels like an AI pair-programmer inside an online IDE rather than a black-box generator. Choose it if you want AI speed but insist on seeing the code as it's written; choose a boilerplate if you want a battle-tested architecture (billing, multi-tenancy, emails) that doesn't need to be re-invented by an LLM.