Build it. Ship it.
Then sell it.
Describe a web app, mobile app, backend or extension. Petal builds the real thing — and Petal is the only place you can put it up for sale when it's done.
Need a spark? Try one of these
<!doctype html>
<html>
<body class="bg-cream">
<h1>Today's habits</h1>
<ul id="habits"></ul>
<script src="app.js"></script>
</body>
</html>- Drink water
- 10 min walk
- Read 20 pages
- 4
- Targets: web, mobile, backend, extension
- 11
- Specialist agents review each build
- Never
- Credits expire
- 80%
- You keep on marketplace sales
The difference
Everyone can generate an app.
Four things they can't do.
Sell what you build.
List a finished project, set a price, transfer it to the buyer's workspace. Petal takes 20% and nothing else. No other AI builder has a storefront on the other side of deploy.
Pay as you build.
Credit packs you buy once. They never expire, there is no plan to cancel, and a turn that changes nothing costs nothing.
A board, not a bot.
Product, architecture, design, security, QA — eleven specialists argue over the spec before a single file is written.
The code is yours to take.
Real React and TypeScript, two-way Git sync, your own domain. Leaving Petal should be a decision, not an escape.
Why Petal
The whole stack.
Shipped.
Web, mobile, backends, Chrome extensions. Database, auth, hosting, security — Petal builds every layer and puts it live. Not a mockup. A real app with a real URL.
No, seriously
Everyone thinks it's
just the frontend
It never is. Here's the whole stack Petal handles for you — the twelve things that usually turn a weekend idea into a six-month project.
What you think it takes
Two boxes. Two weekends. How hard could it be?
What Petal actually does
- Frontend
- APIs & backend logic
- Database & storage
- Auth & permissions
- Hosting & deployment
- Cloud & compute
- Versions & rollback
- Security & RLS
- Rate limiting
- Caching & CDN
- Scaling
- Error tracking & logs
Twelve layers. One chat. Zero DevOps tickets.
A Readiness Score that tells you if it's actually launchable
Security, auth, SEO, error states, RLS, responsiveness — scored out of 100 with a checklist you can fix in one tap. No other builder tells you the truth about your app.
See how it works
Real projects, one prompt away.
Built with Petal
A whole gallery of shipped apps.
Founders, designers, and solo builders open-source their Petal projects every day. Peek inside any one, then remix it into your own with a click.
- Live previews — click any project to see the real, running app.
- One-click remix — fork a shipped app into a fresh copy on your account.
- Ship it further — publish under your own domain in a click.
"First real product I've ever launched."
How it works
Idea → live,
in three steps.
- 01Describe it
One sentence in plain English — web, mobile, API or extension. No setup.
- 02Watch it build
Petal researches, plans, writes the code, and streams a live preview while it works.
- 03Ship it
Publish a URL, wire a custom domain, or download a signed mobile build.
The marketplace
Your build has
a resale value.
Finish an app and it doesn't have to sit in your account. List it, price it, and hand it over to someone who needs it — files, database schema and all. You keep 80%.
- 80%
- Creator share on every sale
- $0
- Listing fee
- Full
- Project transfer, not a zip
- Live
- Working preview on each listing
Pay as you build
Buy credits once.
Use them whenever.
A subscription is a bet that you'll build every month. Most people don't. Petal charges for the work it does and leaves the rest of your balance alone.
How billing works- Credits never expire
Buy a pack, come back in six months, it's still there. No monthly reset, no clawback.
- No-op turns are free
If a build produces byte-identical files, nothing is charged. You pay for changes, not for asking.
- Subscriptions stay optional
Plans exist for people who want a monthly allowance. Nothing about the builder is locked behind one.
- The meter is published
Backend hours, images and model spend each have a stated rate you can read before you spend.
Questions people actually ask.
Do I need a subscription?
No. Buy a credit pack and build. Plans exist if you want a monthly allowance, but the builder, the marketplace and publishing all work without one.
What happens to unused credits?
Nothing. They stay in your balance indefinitely. There is no expiry date and no monthly reset.
Can I really sell an app I built here?
Yes. Publish it as a marketplace listing, set a price, and Petal handles checkout and transferring the project to the buyer. You keep 80% of every sale.
Is it real code or a locked-in builder?
Real React and TypeScript in a real file tree. Sync it to your own Git repository, edit it locally, and deploy it wherever you like.
What if the build breaks?
Petal verifies each build in a browser before calling it done, routes any defects to the specialist that owns them, and repairs in a scoped round rather than rewriting your app.
Can it build mobile apps?
Yes — one mobile target that ships to both stores. Preview it on your phone by scanning a QR code while it builds.
Your turn
Your next app is one sentence away.
Web, mobile, backend or extension — describe it, Petal ships it.
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