Convert Excel to HTML with this Excel add-on. Our Excel to HTML converter creates perfect HTML and converts your formulas to Javascript. Publish calculators and charts on the web without effort.

SpreadsheetConverter is an add-on to Microsoft Excel that lets you convert your Excel spreadsheets to HTML web pages that you can publish in your blog or on your website. The converted web pages are live, just like your spreadsheet. If you change a value, the formulas in the HTML web page immediately recalculate all affected cells on the page.

Now you can create live, calculating HTML forms and charts for your website without the help of a programmer. Just create your online calculator in Microsoft Excel, then use this nifty Excel-to-HTML converter to build a calculating and interactive web page that can be published on any website.

See examples of what SpreadsheetConverter can do for you.

Free offer: Send us a spreadsheet and we’ll send it back as a web page.


Creating advanced HTML without effort

SpreadsheetConverter HTML lets you convert any .xls or .xlsx file to live, interactive HTML. There’s no programming! Just put your Excel skills to work and publish your calculator or smart form on the web. Change a cell and everything recalculates automatically.

Your web forms can have embedded calculations and validations. The entered data is collected and made available to you. Typical examples are:

  • Expense reports: let the employees fill in expense reports online from anywhere in the world. Sums are updated directly when entered, just as they are in Excel.
  • Surveys like course evaluation.
  • Order forms: Using SpreadsheetConverter is the fastest way to publish an order form on the web. Totals, sales tax, shipping is not problem.
  • Reservation forms
  • Employment application: Web forms helps you get more structured answers.


Example: Simple home loan calculator with slider and live chart



Chart inside an HTML/Javascript web calculator

See our entire Examples collection converted to HTML/Javascript.

Features and benefits

SpreadsheetConverter is the perfect tool for creating calculating web forms and web pages that attract attention.

  • Instantaneous response: All calculations and validations are done immediately when the user enters new data. Everything is done in the browser. No communication with the web server.
  • Everything is live and interacting with your visitors: The calculator or form updates dynamically when values are changed. Even the charts are interactive and users can click on a series to hide it. Use calendars to select dates, stars to set ratings and sliders to vary data in real-time. Create forms with dropdown menus, checkboxes, radio buttons, large text fields, list boxes in a breeze. Design step-by-step wizards for complex forms.
  • Import Excel spreadsheets into WordPress and use them live on your web pages after conversion to web format.
  • With the built-in Publish to Cloud service, your web page is automatically hosted on the distributed Amazon S3 infrastructure with superior performance, extreme reliability and massive scalability.
  • It looks so good on the web: Normally, it takes a lot of time to make a web page look this well-designed. With Excel you just format the page the way you like. SpreadsheetConverter creates a web page that looks the same: borders, colors, fonts, checkboxes, dropdown lists etc work as they should, and numbers are formatted on the fly with decimals, thousand separators and currency symbols. If you want numbers to have different colors depending on their values, use the powerful conditional formatting. For a stringent corporate look, apply the same visual theme to all your calculators.
  • Use if from any type of device: responsive blocks automatically fit any screen, both your handheld devices and your desktop screen.
  • True, real-time, online collaboration: multiple users can update the same calculating web page or web form at the same time, seeing each other’s changes.
  • Show different images depending on cell values or formulas. Show the right picture of a product depending on what options the user has selected, or show the right map depending on if someone’s arriving by air or train.
  • Automatic form-to-Inbox delivery: When users submit completed forms, SpreadsheetConverter delivers them directly to your e-mail Inbox. For a small fee, forms can be saved in a database for later retrieval, thanks to a hosted service that requires no local installation or server.
  • The File Attachment widget enables your visitors to include documents, charts, images, videos or any other kinds of files with their form submission.
  • It’s so easy to change: Business rules frequently change, e.g. new prices, new discount options, new regulations etc. With hand-crafted web pages it’s hard to keep up with the frequent changes. With SpreadsheetConverter, you just change the spreadsheet, and regenerate the web page.
  • No debugging: No HTML or JavaScript knowledge is needed. SpreadsheetConverter generates bug-free HTML and JavaScript directly from the Microsoft Excel spreadsheet.
  • Scalable: Once the web page is downloaded into the visitor’s web browser, no resources are needed on the web server. So if your current website can handle 1,000 simultaneous visitors, a calculator you create with SpreadsheetConverter can be used by 1,000 simultaneous visitors.
  • There are no errors: The calculator doesn’t need any testing, since thousands of users already have tested our calculation engine.
  • It’s cost-effective: You need the SpreadsheetConverter program only when you perform the actual conversion from spreadsheet to web page format. You need one license for each PC on which you install the program to perform such conversions.
  • Excel isn’t needed: Once the web page is created, Excel is not required. Your web server doesn’t need Excel, and your users don’t need Excel. Even if Excel is all around, not all employees have it, and private persons seldom have it.
  • It’s free to distribute: With the Professional Edition, you can make the calculator part of a product that you sell.
  • You take no risk: Every purchase comes with a 30-day money-back guarantee and six months of free e-mail support.

SpreadsheetConverter is a unique product

Only SpreadsheetConverter HTML works on all web servers, since we do the calculations using JavaScript. JavaScript is always supported.

Only SpreadsheetConverter has royalty-free distribution. No extra per-server fees.

Fast calculation with prefabricated components

Creating a calculating web page like an expense report or order form online can be very difficult. Programming, testing and debugging takes a lot of time even for a specialist. Most online calculators do all their calculation on the web server, which can make the web page slow because of all the network communication with the server.

With SpreadsheetConverter, all your spreadsheet formulas are automatically converted into program code by SpreadsheetConverter, using prefabricated components that have been meticulously tested. The conversion to web format retains the interactivity that is typical of a spreadsheet, and the entire visual layout is carried over to the web page.

Our basic product converts Excel spreadsheets to HTML with embedded JavaScript that can be used with any web server. All calculations are performed in the browser, without any help from the web server.

SpreadsheetConverter can also generate HTML5 web apps for iPhone and Android smartphones. These make it easy to collect data with mobile devices, select or configure products or do spreadsheet calculations in a smartphone. Web apps can be delivered through an app store and you can charge for them.

Special server products generate program code for Node.js, ASP.NET and classic ASP web servers. Since these flavors keep the formulas on the server and perform all calculations there, the business formulas are hidden from the end user. Running the formulas on the server also makes it much easier to add back-end integration, for example for saving and restoring values to a database. Communication with the server is minimal and the web calculator updates itself quietly in the background while the user is busy entering data into another cell.

Superior support

We guarantee top-notch support. Technically competent support engineers are here to answer your e-mails. They are all programmers and web developers. You should get answers by the next business day, often within the hour. Free e-mail support for six months is included with every purchase.

SpreadsheetConverter is a mature product. SpreadsheetConverter has been for sale since 2002. We constantly add new value to the product. Updates ae free within the same major version, so if you buy any version 9 product, all 9.x updates are free. If we release a new major version within six months from your purchase, the upgrade to the new version will not cost you anything.

Low cost, no risk

We recommend that you start with the Standard edition of SpreadsheetConverter HTML to learn the basics. As you become confident in your ability to generate web pages from Excel, you can add more “flavors” – technical publishing environments – to your toolset.

For serious publishing business, the Professional Edition lets you create web pages for clients, supports all the most nerdy Excel functions and provides even more beautiful chart types.

Here is the complete price list:

License to generate HTML pages$127$247
License to generate pages for iPhone/Android$167$327
License to generate pages for Node.js$187$357
License to generate pages for ASP.Net$187$357
Cost per month$0$0
Cost per page$0$0
Cost per server$0$0
Cost per visitor$0$0

SpreadsheetConverter is an add-in for Microsoft Excel in Windows. It appears as an extra menu in Excel. Excel and SpreadsheetConverter are only used when you create the spreadsheet and convert it to web format. We charge a small one-time license fee for each computer on which you install the Excel add-in to perform such conversions.

  • There are no additional fees per month.
  • There are no additional fees per page or conversion.
  • There are no additional fees per web server, page view or visitor.
  • There are no additional fees for Excel or plug-ins. The web pages we create have everything in them and do not need or use Excel.

In fact, when spreadsheets are available online like this, many people no longer need their own Excel licenses, which can generate additional savings.


There is no risk, you’re safely protected by our 30-day money-back guarantee. If you are not satisfied with your purchase, just send us an e-mail, and we will cancel your purchase and refund the money.

Let us convert a spreadsheet for you, right now!

Let us convert one of your Excel spreadsheets to a live web form or calculating web page. Just e-mail us one of your spreadsheets now and we’ll do it for you. It’s so simple, we’ll even do it for free! Once you see the impressive result, you’ll want to download the program and try for yourself.

Download and try the program for free for 30 days

SpreadsheetConverter is an add-in for Microsoft Excel in Windows. It appears as an extra menu in Excel.

You don’t need a license to test the Excel add-in, just download the trial version and install it on your Windows computer. We recommend that you start with SpreadsheetConverter HTML. If you buy a license for one flavor and later want to upgrade to a different flavor, you only pay the price difference.

Technical requirements

SpreadsheetConverter is an add-in for Microsoft Excel in Windows. If you have a reasonably current version of Excel running in a Windows PC, you’re probably good to go.

For an overview of the various flavors of SpreadsheetConverter and their exact technical requirements, please study the product comparison chart.

Build live website calculators and web forms now!

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