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A Powerful JavaScript Datagrid

Take your development further with our JavaScript Datagrid & UI components.

  • A familiar, Excel-like experience for your JavaScript grid.
  • Customizable cells with cell templates and themes.
  • An Extensive API documentation with hundreds of demos.
  • First-class support to help you create the datagrid that your application needs. 

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Why Choose FlexGrid for JavaScript?

Familiar Functionality

Excel-like keyboard support, data aggregation, cell merging, star sizing, and cell freezing create a familiar experience.

Limitless CellTemplates

Cell Templates provide limitless templates with support for declarative markup and binding expressions for Angular, React, Vue and PureJS.

Improved Performance

Our FlexGrid module clocks at 113kb, it'll help keep your applications lean and fast with minimal load time. 

Written in TypeScript

With TypeScript, you'll get an object-oriented C# feel, design-time error checking, and complete IntelliSense in Visual Studio.

First-Class Support

Wijmo, framework agnostic, includes full support for Angular, ReactVue, and Knockout, with the same grid across frameworks.

Security Compliant

Wijmo is Content Security Policy (CSP) compliant, working seamlessly in JavaScript applications without compromising security.

Data Binding

Wijmo's JavaScript datagrid, FlexGrid, supports client-side and server-side data binding. You can bind it to simple JavaScript arrays, observable CollectionViews, remote OData servers, or real-time WebSocket servers.

More details on Data Binding features

Custom Cells

Custom Cells

Wijmo's JavaScript datagrid, FlexGrid, allows you to heavily customize the look, feel, and functionality of every cell within the datagrid to match your style requirements. You're able to add both Wijmo and custom components to cells, conditionally style cells and their internal data, and dynamically update cells within the datagrid.

More details on Custom Cells features

JavaScript DataMaps for Custom Cells Within FlexGrid


Wijmo's JavaScript datagrid, FlexGrid, offers the DataMap feature as a simple way to provide the grid with automatic lookup capabilities, such as displaying a customer name instead of their ID. FlexGrid will add drop-downs to columns using DataMaps with valid items to use when editing cells. DataMaps also supports dynamic DataMaps and DataMap editors.

More details on DataMaps

JavaScript Datagrid Paging


Wijmo's JavaScript datagrid, FlexGrid, uses the CollectionView component allows you to implement client-side paging by default, allowing you to generate datagrids that display a reasonable amount of data per page. You can also connect the CollectionView directly to your data source and allow for server-side paging.

More details on Paging features

Additional Features

Virtual Scrolling

Wijmo's JavaScript datagrid, FlexGrid, allows you to virtualize your data when loading it into the datagrid. As you scroll through FlexGrid, it will load the data into the grid as needed, allowing for increased performance and infinite scrolling.

More details on Virtual Scrolling


Like Excel, Wijmo's JavaScript datagrid, FlexGrid, allows you to select a range of cells over multipl rows and columns. FlexGrid also allows you to modify the marquee of the selection, as well as set the selection through other components.

More details on Selection


Wijmo's JavaScript FlexGrid, comes with an extensive list of features that support accessibility. ARIA technology helps users interact with and modify the FlexGrid and the Excel-like keyboard shortcuts enable users to easily traverse its contents. 

More details on Accessibility


Wijmo's JavaScript datagrid, FlexGrid, allows one to copy selected rows or cell data into the clipboard with built-in support. The clipboard gives you the ability to customize the clipboard actions using several of FlexGrid's clipboard events.

More details on Clipboards

Data Customization


FlexGrid, has built-in support for Excel-like, in-cell editing. Customize the data stored inside of the FlexGrid, such as data validation, pop-up editors, and custom editors.

More details on Editing


Wijmo's JavaScript datagrid, FlexGrid, supports data sorting through its CollectionView and can be customized to allow for features such as on-demand sorting and multi-column sorting.

More details on Sorting


Flexgrid supports multiple filter options, from standard text and highlighting to Excel-like filtering. Use server-side filtering when loading data from an OData source.

More details on Filtering

Data Summaries

JavaScript Datagrid Grouping


Wijmo's JavaScript datagrid, FlexGrid, allows you to group data via CollectionView. Set multiple groups in a single datagrid and implement an Outlook-style GroupPanel to allow users to drag-and-drop columns to create groups.

More details on Grouping

JavaScript Datagrid Aggregation


Aggregate data to display summarized information for rows and columns in the entire datagrid or individual sections. You're able to set where the aggregated data is displayed, create custom aggregations, utilize built-in functions, and format options.

More details on Aggregation

JavaScript Data Grid TreeGrid


Wijmo's JavaScript datagrid, FlexGrid, allows you to bind child items to the datagrid, creating a TreeGrid to display your data. TreeGrid supports both bound and an unbound mode, lazy loading of data to increase performance, and importing XML data to display.

More details on TreeGrid


Wijmo's JavaScript datagrid, FlexGrid, allows you to view hierarchical data through both a master-detail model and through the use of RowDetail. Use the master-detail model to select an item inside of a FlexGrid and view its details, or use RowDetail to allow nesting data within FlexGrid's rows.

More details on Master-Detail

JavaScript DataGrid Master-Detail Sample


Import Export Excel

If your business relies on Excel for data management, you can use FlexGrid to both import XLSX files, as well as export your FlexGrid data into an XLSX file to view in Excel. FlexGrid also supports both synchronous and asynchronous data exportation and has the ability to retain formatting and styles set by FlexGrid and Excel.

More details on Import Export Excel

Export Pdf

Wijmo's JavaScript datagrid, FlexGrid, supports content exporting and formatting to PDFs, This allows you to not only view data in a browser, but also Add FlexGrid to newly-created PDFs. Modify PDFs and reports to include FlexGrid.

More details on Exporting PDFs


Wijmo's JavaScript datagrid, FlexGrid, supports using printers as export options, allowing you to convert the datagrid into a format that supports printing. With FlexGrid's PrintDocument class, you can convert a datagrid into a table element, which can then be rendered onto a page and printed out.

More details on Printing

Globalization and Localization


Wijmo's JavaScript datagrid, FlexGrid, has a Globalization class that allows you to format the display of FlexGrid's content. You'll not only be able to select the language that FlexGrid uses to display its data, but also format how it displays dates and numbers.

More details on Globalization


Some languages render content from the right-hand side to the left-hand side of a page. HTML accommodates this by using the dir attribute. Place FlexGrid within an element set to display content from right to left; FlexGrid will display its content in the same way.

More details on Right To Left

JavaScript DataGrid Freezing and Pinning

Freezing & Pinning

Wijmo's JavaScript datagrid, FlexGrid, offers Excel-like row and column freezing and pinning. This allows you to keep rows and columns in view as users navigate the content of the datagrid.

More details on Freezing & Pinning

Sticky Headers

Wijmo's JavaScript datagrid, FlexGrid, supports the implementation of sticky headers. Sticky headers remain visible when users scroll through the datagrid while maintaining all of the functionality of a static header row.

More details on Sticky Headers

JavaScript Datagrid Sticky Header
JavaScript DataGrid Search Filter


Wijmo's JavaScript datagrid, FlexGrid, allows you to perform full-text searches–filtering your data to show all matching instances found in the datagrid. You can then highlight all matching occurrences of the scanned text.

More details on Searching

Add New Rows

Wijmo's JavaScript datagrid, FlexGrid, allows you to implement a new row feature without writing code for additional rows. Adding a blank row to the datagrid allows users to add even more rows of data. You can automatically include the blank row at either the top or bottom of the datagrid when you set the grid's allowAddNew property.

More details on Adding New Rows

JavaScript Datagrid Add New Rows



FlexGrid allows users to modify columns by dragging and dropping their headers and disable reordering in the entire datagrid or in individual columns. Enable reordering by setting the allowReordering property as true and dragging and dropping the column header from one index to another within the datagrid.

More details on Reordering

Cell Merging

Wijmo's JavaScript datagrid, FlexGrid, supports content-driven cell merging. This allows users to merge data cells by matching content through the allowMerging property. Merge header cells, create custom cell merging rules, and set restrictions on how FlexGrid merges cells.

More details on Cell Merging

Column Sizing

Wijmo's JavaScript datagrid, FlexGrid, allows you to specify column sizing in code, as well as allow users to resize columns after rendering the datagrid. Like Excel, users may drag the column header's right edge to expand or decrease sizing, or double-click the edge to auto-size the column to fit its content.

More details on Resizing