# The AI app builder with everything built in

WebDIY takes care of the code, database, authentication, and infrastructure so you can focus on what you want to build.

[Start building](https://web.diy/signup)

Start free with 500 credits a month, then 100 a day. No card needed.

## An agent that builds, runs and tests your app

Describe what you want. WebDIY plans it, writes the code, runs it in a live preview and clicks through it like a real person, fixing what breaks along the way.

## A real database in every project

Postgres, set up and run for you the moment your app needs to remember something. Browse your tables, filter rows and export them, all without leaving the chat.

## Sign-up and login, built in

Give your users accounts from day one, with codes sent by email. See who signed up and look after every account from one screen.

## Connect the tools you already use

Stripe for payments, Resend for email, plus Slack, OpenAI, Notion and more. Add your key once and WebDIY writes the code that connects them.

## Live in one click

Publish to a free website.diy address, or connect a domain you own. Every update goes live just as fast.

## See how your app is doing

Requests, errors and server time for your live site, and your app’s output live as you build.

## Build it together

Invite your team and choose who builds, who publishes and who just looks. Clients join as guests, without taking a seat.

## Every version, always yours

Every change is saved as you go. Rewind to an earlier version and carry on from there, open any file, or download your code files and take them anywhere.

## Safe by default

Your keys stay out of your code and your logs, every publish is checked before it goes live, and each project builds in a computer of its own.

## Questions

Short answers to what people ask first.

### Do I need to know how to code?

No. Describe what you want in plain words and WebDIY builds it. If you do code, every file is open to read and edit.

### What can I build?

Websites, landing pages, booking systems, client portals, dashboards and internal tools. If it runs in a browser, you can probably build it.

### How much does it cost to start?

Nothing. Start free with 500 credits a month, then 100 a day. No card needed.

### Can I use my own domain?

Yes. Every app gets a free website.diy address, and on Pro and Max you can connect a domain you own. Search engines can list sites on custom domains, but not website.diy addresses.

### Will my app show up on Google?

On a custom domain, yes, it can. Search engines don’t list website.diy addresses, so connect a domain you own on Pro or Max.

### Which AI models can I use?

Leading models from Anthropic, OpenAI, Google and more: 6 on Free, 13 on Pro and 14 on Max. You can switch models for any message.

### Who owns what I build?

You do. Your code is yours, and you can download it whenever you like.