Convert Excel spreadsheets to live web pages!

Convert Excel spreadsheets to live calculators for the web. Help your users buy the right volume of seeds for their garden, customize 200 city buses or select the perfect printer for a customer.

Create smart web forms with Excel. Design a calculating order form that is automatically sent to your order desk. Let airline crews enter data for ground systems also when they’re offline during the flight.

Compile any Excel spreadsheet into a powerful web app. Help a building engineer complete a safety survey directly on-site. Calculate your server’s power and cooling figures on your iPhone while your customer gets her car.

New versions and features

blurb images

Google Maps need an API key to work

Google Maps may not appear as expected on your website. You get a message saying Oops! Something went wrong. This is because Google now requires your API key.

Read more.

blurb images

No more publish to Dropbox

All your existing calculators in Dropbox will soon disappear from the web. You cannot host web calculators or smart web forms in Dropbox anymore.

Read more about the Dropbox announcement


blurb images

Version 8.4 is out!

Version 8.4 comes with the new File Attachment widget. Protect forms with Secure Delivery. And Real-time Sync reconnects after a link failure.

Read more about version 8.4

Learn more - or try it for free!

blurb images

Take the tour

Providing a smart calculator on your website makes people come back. Design your online calculator in Microsoft Excel, then convert it into a calculating and interactive web page that can be published on any website.

Take the tour
blurb images


With SpreadsheetConverter, you can publish nearly all Excel spreadsheets on the web, retaining the live user experience and the immediate recalculation when cell contents are changed.

View examples
blurb images

Free download

Test the program with your own spreadsheets for up to 30 days at no charge. If you like it, buy a license key and convert your trial version to the full version.

Read more

Home Equity calculator with live chart

This is one of our favorite examples because it shows to advantage of live charts. Change any cell in the spreadsheet and the chart immediately reflects the new values.

In this example, you can also see a useful implementation of a slider. To change the years remaining on a loan, we could just have used a standard numeric field. Using a slider allows for much easier visualization of how the equity varies over the lifetime of the loan.

Test this calculator in other formats:

In the Spotlight

blurb images


An Australian airline builds electronic forms for the crew’s smartphones. Forms can be submitted even when the plane is airborne and their smartphones are offline.

The Offline Forms feature allows users to submit business-critical electronic forms also when they are not connected to the Internet. When the plane has landed, the queued forms are submitted to a hosted database server for easy retrieval.

blurb images


“If the spreadsheet is already online, why not let two or more people work together on it”, we thought, and created Real-time Sync for online spreadsheets.

Two or more users can collaborate on the same web form or use the same live calculator. People in a meeting can change the budget numbers on the screen from their own smartphones.

blurb images


We are introducing a new interactive charting engine. It is a major step for us and we will be carefully phasing it in, replacing the old charts as we go along.

Test an example

  • Highlight one of the series just by hovering your mouse above its label.
  • Click on the label for a series to hide/show the series.
  • The new engine supports combined line/column charts.

A calculating web form for catering orders

This one started as a spreadsheet we created to calculate catering costs. After a while, we found that people were using old versions with old prices. With SpreadsheetConverter, we could convert our spreadsheet to a web page calculator that people could use directly on our internal web.

When prices change, all we have to do is update and convert the spreadsheet, upload it on the web, and the new prices are immediately there for everybody.

Before we started using SpreadsheetConverter, we were always chasing people, asking them to provide additional information that we just must have to process a catering order, e.g. their cost center numbers. Then we found out how to add a Send button to our little calculator. Now, after people have specified their requirements and checked the prices, they can send us their order directly from our web page with just a click of a button.

SpreadsheetConverter allows us to make certain fields in the catering order form mandatory. So now, no-one can send us a catering order without specifying their cost center. You bet it saves us time!

Test this web form in other formats:


Create beautiful web apps for iPhone and Android

The screenshot to the left is from a mobile web app that was directly converted from an Excel spreadsheet. The app calculates the monthly payments for a car loan depending on time and interest. It also shows you the total interest paid for the loan. For us, it also demonstrates some of our popular web widgets and the powerful hide rows feature.

To open the Car Loan calculator in your phone, scan the QR code below.

If you’re uncomfortable doing that, read our tutorial about scanning QR codes.

If you want to build apps like this just by converting Excel spreadsheets, read the guide to creating iPhone/Android web apps from Excel spreadsheets.

Barcode for the Car Loan calculator


Build live website calculators and web forms now!

conversion imageconversion imageconversion image

Just download, install and test the Excel add-on now. Or let us convert a spreadsheet for you, for free.