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
Optimize your web app size and speed in any browser
Design JS spreadsheets
Import, edit, and export Excel spreadsheets
Use built-in templates or create your own
Contact sales for the source code
TRY THE DESIGNER
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.
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.
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
Take advantage of tables, filtering, conditional formatting, and shapes to offer an expanded Excel-like experience.
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.
What's New in SpreadJS 13
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
Cell state styles
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