AI app builder · live sandbox
Describe an app.
Watch it build itself.
The SEOJack builder turns a sentence into a working, full-stack app — written live in a real sandbox, previewed as it goes, then shipped to the web and GitHub. Your projects and chat history stay saved to your account.
No setup. Sign in and ship your first app in minutes.
You
Agent
- Spinning up a live sandbox…
- Writing app/page.tsx
- Adding the booking form + pricing
- Installing dependencies
- Preview is live ✓
export default function Page() {return"Bali, your way" /> }
Live preview
Built on
- Live sandbox
- Full-stack code
- Persistent projects
- One-click publish
- GitHub export
How it works
From a sentence to a shipped app, in three moves.
- 01
Describe it
Tell the agent what you want in plain English — a booking site, a dashboard, a store. No boilerplate, no setup.
- 02
Watch it build
It spins up a live sandbox, writes real full-stack code, and previews the app as it goes — so you see it come alive.
- 03
Ship it
Keep iterating in chat, then publish to the web and push the repo to GitHub in a single move.
Features
A real agent, with real tools — not a toy.
Live sandbox preview
A real sandbox boots in seconds and renders your app as it’s written — not a mockup, the running thing.
Real full-stack code
Genuine Next.js, React and Tailwind you can read, edit and own — exportable any time, never a black box.
Chat that remembers
Projects, conversation history and generated files persist to your account and survive refreshes and timeouts.
One frontier model, any prompt
A powerful frontier model drives every build and picks the right tool for the job, message after message.
One-click publish
Ship the result straight to the web and push a clean repository to GitHub — from prompt to production.
Editor, files & terminal
A built-in code editor, file tree and live terminal are right there when you want to take the wheel.
Examples
If you can describe it, you can build it.
Start from a blank prompt or a template, then steer it in chat. A few things people spin up in a sitting:
- A booking site for a Bali private driver
- A SaaS pricing page with a comparison table
- A habit tracker with streaks and charts
- A retro arcade storefront
- A landing page with a waitlist form
- An invoice generator with PDF export
The Gallery
The best-designed sites on the web, voted up.
Not building today? Browse an AI-curated, community-upvoted gallery of beautiful websites — a daily hit of inspiration. Free to explore; sign in to upvote your favourites.
Describe your first app.
Sign in, type a sentence, and watch it come to life. Free to start.