Spreadsheet to Web App

Turn the spreadsheet you've already built into a real web app.

The calculator, tracker or client list you already rely on, as an app that opens on your phone. Claude Code builds it from your workbook and checks the math against your sheet.

Spreadsheet To Web App One payment. No monthly fees.
Works on your phoneNo codingYour formulas, checked
A cleaning business dashboard app with income, expenses and charts, built from a spreadsheet
A retirement planner app on a phone showing the plan works
The problem

Your spreadsheet works. Using it doesn't.

You already built something useful. It calculates your prices, tracks your jobs, or tells you if your savings will last. But it lives in a grid that was never meant to be an app.

Pinch, zoom, scroll

Open it on your phone in a parking lot and you're hunting for column Q with your thumb.

"Don't touch that cell"

One wrong click and a formula is gone. Sharing it with a client or your team feels risky.

Hard to show anyone

It does the job, but it doesn't look like something you'd hand to a customer.

The idea

What if that same spreadsheet was an app you could open anywhere, without learning to code?

You already built the logic

Your formulas, your categories, your way of doing things. That's the hard part, and it's done.

Claude Code turns it into an app

It reads your workbook, asks you a few plain questions, and builds the screens around your math.

You get an app you own

A real web app on your computer. Open it on your phone, put it online free, or share it. No monthly software bill.

See it

The spreadsheet. Then the app.

Two real workbooks, turned into apps with this kit. Both are included, and you can try them right now.

A retirement calculator

Started as an Excel workbook with 18 inputs and a hidden tab of formulas. Now it asks friendly questions, gives a clear answer, and draws the chart.

Before: the spreadsheet

The original retirement planner spreadsheet with inputs and a year-by-year table

After: the app

The retirement planner app on a laptop with sliders, results and a chart
The retirement planner app on a phone

A small business tracker

Started as a cleaning business workbook with Clients, Jobs, Expenses and a Dashboard tab. Now every tab is a list you can search, filter and add to from your phone.

Before: the spreadsheet

The original cleaning business jobs spreadsheet

After: the app

The cleaning business dashboard app on a laptop
The jobs list in the cleaning business app on a phone

Watch it come together in 40 seconds.

Drop in the spreadsheet, answer a few questions, let Claude check the math, open your app. That's the whole process.

How it works

You answer questions. Claude does the building.

You're not becoming a programmer. You're telling Claude how you want your app to work, and it handles the rest.

1

Drop in your spreadsheet

Claude reads every tab and every formula, even the hidden ones.

2

Answer a few questions

One at a time, each with a recommended answer you can just pick.

3

Claude checks the math

It compares the app to your spreadsheet, cell by cell, and fixes anything that doesn't match.

4

Open your app

Double-click it. Works on your phone, tablet and laptop, in light or dark mode.

1,663numbers match ✓
Bug found

The retirement example matches its spreadsheet on every one of 1,663 numbers. Claude also found a formula slip that retired everyone a year early. It copied the sheet exactly first, then fixed the mistake and explained what changed.

What you get

Everything you need, in one download.

✓

The Spreadsheet to Web App kit

The Claude skill and the app engine Claude builds with. Calculators, dashboards and lists.

✓

START-HERE guide

Plain steps, no jargon, from unzipping to your first app.

✓

2 finished example apps

The retirement calculator and business tracker above, to try before you build.

✓

2 sample workbooks

The spreadsheets the examples came from, so you can see the before and after.

✓

Read Me First PDF

One page that gets you started, and opens on any phone.

✓

A license built for your business

Make as many apps as you like for your own business, plus one for a client or to sell.

✓

Free updates

When the kit gets better, you get the new version.

✓

Email support and community

Stuck? Email support@aicreatorsworkshop.com or ask in the AI Creators' Workshop community.

Who it's for

Made for people who run things in spreadsheets.

Small business ownersFreelancersConsultantsSpreadsheet power users Anyone with a calculator they builtBusinesses run in Excel or Google SheetsBeginners who don't code
Before you buy

Here's what you'll need.

  1. A Mac or Windows computerYou build on a computer. The finished app works on your phone.
  2. Claude, on a paid planClaude Code comes with Pro or higher, from claude.com. Not included in this purchase.
  3. Your spreadsheet as .xlsxExcel saves it that way, and Google Sheets and Numbers can both download it.
  4. Node.jsA free tool. If your computer doesn't have it, Claude sets it up for you.

Get the kit

One payment. Yours to keep.
  • The full kit and guide
  • 2 example apps and workbooks
  • Free updates and support
Spreadsheet To Web App
Questions

Good to know

Do I need to know how to code?

No. You answer questions in plain words and Claude writes the code. If you can use a spreadsheet, you can do this.

Does it work with Google Sheets?

Yes. In Google Sheets, pick File, Download, Microsoft Excel (.xlsx), then give Claude that file. Apps with lists can also sync back to a Google Sheet so every device sees the same data.

Are there monthly fees?

Not for this kit or your app. You pay once. You do need your own paid Claude plan to do the building, and putting your app online with Netlify is free.

Where does my data live?

In the browser on your own device, or in your own Google Sheet if you turn on sync. It never goes through anyone else's server.

What doesn't carry over?

Macros, pivot tables, Power Query and live data connections. Claude tells you when it sees them and suggests what the app can do instead. Photo and file uploads aren't supported, but a column with a link works fine.

Can I change my app later?

Yes. Open the kit in Claude and ask, like "make the first question about income" or "use my brand color." Your spreadsheet changed? Ask Claude to update the app from the new file.

You already built the spreadsheet. Now make it an app.

Pick the one spreadsheet you'd most like on your phone, and start there.

Spreadsheet To Web App

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