SpreadSheet JavaScript UI widget for web developers

Add a pure JavaScript SpreadSheet component to your enterprise web app in 5 lines of code

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1. Import and export

Import Excel documents to your web SpreadSheet and export information to Excel, PDF or PNG files.

2. New functions

Create your own functions for working with data in cells.

3. Flexible SpreadSheet UI customization

Add a formula editor, subbars, menus, set the number of columns and rows.

4. Localization

Adjust dates, numbers, monetary units and text labels to comply with the rules of particular countries.

5. Additional UI components and Webix API

Use popups, dialogs and other components from Webix UI library to extend functionality.

Why use JS SpreadSheet?

Flexible calculations

Calculations may take place on both the client and server sides of your application.

Super fast rendering

Our SpreadSheet is deeply optimized and allows to instantly draw huge amounts of data.

Excel file formats support

Spreadsheet control can load Excel documents initially or open them like an Excel application with data accuracy, styles, and formats. Support of Microsoft Excel (.xlsx) and Microsoft Excel 97-2003 (.xls) formats.

Documentation, support, examples

Product with a detailed documentation and technical support service.

Easy backend integration

Explicit Integration with PHP, Node.js, Golang and .NET.


All elements can be adjusted through API, without need to edit anything in source codes (which are provided by the way).

Easy frontend integration

Сan work with all modern frameworks. You can use it standalone or inside the React of an Angular app.

Cross platform and browser support

Support of All Modern browsers.

Advanced Excel-like features for your JavaScript web apps


Use formulas with built-in functions that correspond to Excel ones, including named ranges functionality.


Simplify the perception of data with sorting, filtering and conditional formatting.


Add images and sparklines for visual display of data.


Copy and paste information from the clipboard to other cells or Excel files.


Use enhanced SpreadSheet functionality: apply string concatenation, add drop-down lists, connect data between sheets, etc.


Use the read-only mode to protect cells or sheets from being edited.


Set the way of data presentation: from the color of the text to cell data format.


Use multiple sheets, add or hide rows and columns in a single click, сhange the cell size by dragging and manage the visibility of cell borders and gridlines.


Upload Excel documents and download ready Excel, PDF or PNG files.


Choose the chart type you like.

JavaScript SpreadSheet live demo