AI app builder
Describe an app. Get a working one.
Builddu turns a sentence into a running, full-stack application — database, pages and hosting included. No setup, no boilerplate, no deployment pipeline to configure.
50 free credits when you sign up. No card required.Already have an account? Sign in
How it works
Describe it
One sentence about the app you want. Plain language, no diagrams.
It gets built
The agent writes the code, sets up the database and wires the pages.
Publish it
One click puts it on a live URL. Connect your own domain when ready.
The same six steps in full, including where the free build ends: how Builddu works.
What you get
Web apps
A full-stack app with a database, pages and hosting.
- A full-stack app: server-side code, not a static front end.
- A managed database, included in every project, with no setup step.
- Pages wired together, and a live URL the moment you publish.
- Sign-up, login and sessions — the agent is instructed to generate them. Observed in builds, not guaranteed.
Every project ships with its own managed database and a live URL.
Change it three ways
The first version is a starting point, not the deliverable. Every change shows up in a live preview as you make it.
Click it
Open the visual editor, select something on the page and change it — text, spacing, colour — and watch the preview update.
Describe it
Say what you want different and the agent makes the change across the files it touches.
Write it
Open the code panel and edit the files directly. Saving a file costs nothing.
What each way can and cannot do, and what each one costs: inside the visual editor.
Your data
- Browse and query your app's tables, and create, edit or delete records, without leaving Builddu.
- File and image fields, uploaded through your app and listed with the rest of your data.
- API keys kept as secrets, set separately for development and production.
The filters, the record editing and what the panel will not do: your app’s database.
Ship it
- One click puts the project on a live URL. Publishing costs 1 credit.
- Connect a domain you already own, and the certificate is handled for you.
- Re-publish whenever you change something. The URL stays the same.
It stays yours
- Download the whole codebase as an archive, whenever you want it.
- Sync the project to your own GitHub repository and work on it there.
- Every build is a version you can go back to, so a change you dislike is not a problem.
- Our terms say it plainly: generated code and content are yours.
How each of those works, in detail: export, GitHub sync and version history.
What it actually built
Our own test · 2 September 2026
In one test, Builddu spent about 2.5 minutes preparing the environment before app generation began. The finished app had a real database — 8 services and 4 stylists — a booking flow that ran through to a full confirmation screen showing service, stylist, date, price and address, and an admin dashboard.
One run, on one day. Nothing in that test is scored or ranked, and it is not a statement about any platform as it is today.
Read the full testPricing
Building uses credits, charged by what each change actually takes. Every plan renews its allowance monthly, and you can top up any time — 100 credits for $19.
Starter
For a first project or two.
$20/ month
100 credits a month
Pro
For shipping regularly.
$49/ month
300 credits a month
Business
For teams and client work.
$99/ month
600 credits a month
What each operation costs, how the two credit pools work, and what happens when you run out: pricing in full.
Common questions
What can I build with Builddu?
Full-stack web apps: a database, pages, and server-side code behind them. In one test we ran, that was a booking app for a salon with an admin dashboard — the write-up is linked above.
Do I need to know how to code?
No. You describe what you want and change it by clicking or by asking. The code panel is there if you want it, not because you need it.
Do I own the code, and can I get it out?
Yes to both. Our terms say generated code and content are yours, you can download the whole codebase as an archive, and you can sync the project to your own GitHub repository.
What do I get for free?
50 credits when you sign up, with no card. That covers one AI build, so you can see what it produces before paying anything.
How does pricing work?
Building spends credits, charged by what each change actually takes rather than a flat rate per message. Plans renew their allowance monthly and you can top up at any time — 100 credits for $19.
Can I use my own domain?
Yes. Connect a domain you already own and the certificate is handled for you. Published projects also get a live URL straight away, before you connect anything.
Can I undo a change I don't like?
Yes. Every build is kept as a version, and you can restore an earlier one from the project.
What happens when I run out of credits?
Building stops until credits are available again — your plan's monthly allowance, or a top-up. What you have already built stays as it is.
More on how the market prices this: our guides and side-by-side comparisons.
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