The World's #1 Selling JavaScript Spreadsheet with over 450 Excel Functions

A comprehensive enterprise JavaScript spreadsheet solution for delivering true Excel-like experiences.

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A Complete High-Performance JS App Toolbox in One Spreadsheet Control

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

Deliver True Excel-Like Spreadsheet Experiences, Fast

Import, modify and export your most complex Excel .xlsx 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.
Powerful Calculation Engine Includes 450+ Functions

Optimized for complex calculations, SpreadJS offers a complete 450+ function library that includes statistical and financial functions, dynamic arrays, and custom user-defined functions.

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 Spreadsheets | JS Excel Functions and Formulas | SpreadJS