> For the complete documentation index, see [llms.txt](https://docs.wisej.com/extensions/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/extensions/premium-extensions/wisej.web.ext.syncfusion.md).

# Syncfusion EJ1

![https://ej2.syncfusion.com/showcase/typescript/expensetracker/](/files/JBTiobaRVq5myWTdugkI)

Essential JS is a comprehensive collection of over 80 enterprise-grade HTML5 JavaScript components for building modern web applications. It includes all the UI controls that are typically required for building line-of-business (LOB) applications including charts, grids, Gantt, scheduler, diagram and much more.

{% hint style="warning" %}
Looking for Syncfusion Essential JavaScript 2 controls? See [Wisej.Web.Ext.Syncfusion2](/extensions/premium-extensions/wisej.web.ext.syncfusion2.md).
{% endhint %}

## **Online Demo**

The **EJ1** Integration can be viewed online using the following demo link.

{% embed url="<https://wisej-demobrowser.azurewebsites.net>" %}
Wisej.NET Demo Browser
{% endembed %}

## Configuration

Learn how to customize the JavaScript bundle to include local files, embedded resources, localization files, and more.

{% content-ref url="/pages/01192eAnMUT9tsAmnjwF" %}
[Configuration](/extensions/premium-extensions/configuration.md)
{% endcontent-ref %}

## **Reference**

* [Documentation](https://help.syncfusion.com/js/overview)
* [Demos](https://js.syncfusion.com/demos/jquery/)
* [API](https://help.syncfusion.com/api/js/global)