• A complete high-performance JS app toolbox in one spreadsheet control

    Leverage the extensive JS spreadsheet API and powerful calculation engine to create analysis, budgeting, dashboard, data collection and management, scientific, and financial applications

  • Deliver true Excel-like spreadsheet experiences, fast.

    Import, modify and export your most complex Excel spreadsheets. SpreadJS offers the most complete Excel-like experience, including tables, charts, shapes, sparklines, conditional formatting, filtering and an extensive library with no Excel dependencies.

  • Code-free extensibility and customization with the Spread Designer Apps

    Instantly design feature-rich Excel-like spreadsheets with the SpreadJS Designers for desktop and web

  • Powerful calculation engine includes 450+ functions

    With more built-in functions than other JavaScript spreadsheets, custom functions, and the formula text box, your computing power is optimized for big data and complex calculations

  • Pure JavaScript with TypeScript, Angular, Vue and React support

    With no external libraries or frameworks like jQuery, your JavaScript spreadsheets will be light, customizable, and easy to use in VSCode—and include support for Angular, React, and Vue.js

  • Optimize your web app size and speed in any browser

    SpreadJS is modular, so you only need to add what you use to your JavaScript spreadsheet apps, and this client-side component works in Windows, Linux, Mac, Android, iOS, and is tested for all modern browsers

JavaScript Spreadsheet Top Features

Powerful calculation engine with 450+ functions in JavaScript spreadsheet

Powerful calculation engine with 450+ functions

This high-speed, optimized engine adds computing power to even the most complex formulas without dragging down your apps, includes more functions than any other spreadsheet component, and supports custom functions.

Import/export Excel files in JavaScript spreadsheet

Import/export Excel files in JavaScript spreadsheet

No JavaScript spreadsheet is complete without full Excel import/export support! Import your most advanced Excel spreadsheets and then export your SpreadJS spreadsheet to XLSX... all with zero dependencies on Excel.

Visualize data with charts and sparklines in JavaScript spreadsheet

Visualize data with charts and sparklines

Offer insight into your data with interactive charts and sparklines. With most Excel charts, interactions, and animations, your dashboards and analytical spreadsheets will come to life.

Built-in globalization

Built-in globalization

Select from the available cultures, create your own custom culture or use the CalcEngine Language pack to localize your applications. Adjust date masks, languages, number separators, currencies, enter functions using the local language, and more.

Data presentation controls in JavaScript spreadsheet

Data presentation controls

Take advantage of tables, filtering, conditional formatting, and shapes to offer an expanded Excel-like experience.

No-code design with Spread Designers in JavaScript spreadsheet

No-code JS spreadsheet design with Spread Designers

Choose from the powerful desktop Designer App or the convenience of the Web Designer—you’ll get code-free spreadsheet apps in no time.

Explore SpreadJS's Excel-like feature set

Click to try the JS spreadsheet demos and look at the code

Spread Designer App

Design data views and forms in a familiar Excel-like desktop interface complete with a file menu, ribbon, and spreadsheet. Download it to your desktop and build an app right away.

  • Import and export Excel files
  • Export templates to JSON for easy loading into your web app
  • Manage layouts, formulas, and views code-free

Learn More

Spread Web Designer

The Web Designer demo offers an Excel-like experience right in your web browser, with templates, a ribbon, file menu, and full SpreadJS functionality.

  • Experience the potential of a full SpreadJS app
  • Export your spreadsheet and load into your SpreadJS app
  • Contact sales to buy the Web Designer source code separately and create your own web designer
Try It Now

What's New in SpreadJS 13

New Dynamic Arrays and Array functions

New Dynamic Arrays and Array functions

We have added great new features that you can start adding to your applications today

  • In-cell images and buttons with a variety of useful drop-down menus
  • New cell types
  • Excel parity features
  • Formula tracing for enhanced spreadsheet audit and debugging
  • Dynamic column width
  • Split resizing
  • Auto-merging
  • Cell state styles

What's New

About SpreadJS Licensing

A hostname deployment license is required to deploy your SpreadJS application

One deployment license is included with the SpreadJS Developer License + SpreadJS One (1) Hostname Deployment License bundle. To deploy SpreadJS apps to additional hostname(s), you'll need to purchase additional hostname deployment licenses. Read more about SpreadJS licensing.

Award-winning JavaScript Spreadsheets

GrapeCity, 2 Publisher, ComponentSource

GrapeCity
#2 Publisher
2018 ComponentSource

SpreadJS, Top 100 Product, ComponentSource

SpreadJS
Top 100 Product
2018 ComponentSource

Commercial OEM and SaaS Licensing

If you want to use SpreadJS to create your own commercially licensed SDK, or web application builder, choose the Commercial OEM license. Since use cases vary widely, Commercial OEM and SaaS licenses are customized for each customer.

Become an OEM Partner