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The JavaScript Checkbox is a custom checkbox-type HTML5 input control for selecting one or more options from a list of predefined choices. It supports an indeterminate state, different sizes, custom labels and positions, and UI customization.

Checkbox states

A single checkbox in JavaScript consists of toggle states for performing check and uncheck actions. To prevent the toggling of a checkbox value, you can use the disable option.

Tri-state or indeterminate checkbox

The HTML5 Checkbox control also features a built-in indeterminate state for option selections.

Checkbox size

You can use different checkbox sizes, default and small, as required using JavaScript Checkbox in your application.

Label for checkbox

Add a label to define the JavaScript Checkbox control’s caption. You can caption the checkbox and position the label either before or after the checkbox.

Custom or fancy checkbox in JavaScript

The HTML5 Checkbox UI (frame and icons) can be completely customized.

Forms support

The Checkbox in JavaScript seamlessly supports HTML forms, template-driven forms (Angular), and reactive forms.

Built-in themes

The HTML5/JavaScript Checkbox supports built-in themes such as Bootstrap 5, Tailwind CSS, Fluent, high contrast, and more. Users can customize these built-in themes or create new themes to achieve the desired look and feel either by simply overriding SASS variables or using the Theme Studio application.

Other supported frameworks

The Checkbox component is also available in Blazor, React, Angular, and Vue frameworks. Check out the different Checkbox platforms from the links below,

Web accessibility

  • Fully supports WAI-ARIA accessibility standards to work with screen readers and assistive devices.
  • Follows WAI-ARIA best practices for implementing keyboard interaction.
  • Designs UI element visuals such as foreground color, background color, line spacing, text, and images based on WCAG 2.0 standards.
  • Supports right-to-left (RTL) text direction for users working in right-to-left languages like Hebrew, Arabic, or Persian.

JavaScript Checkbox Code Example

Easily get started with the JavaScript Checkbox using a few simple lines of HTML and TS code example as demonstrated below. Also explore our JavaScript Checkbox Example) that shows you how to render and configure a Checkbox in JavaScript.

<div class="control-section">
        <!--element which is going to render-->
        <input id="element" type="checkbox"/>
import { CheckBox } from '@syncfusion/ej2-buttons';

// Initialize CheckBox component.
let checkbox: CheckBox = new CheckBox({ label: 'Default' });
// Render initialized CheckBox.


Frequently Asked Questions

The Syncfusion JavaScript Checkbox provides the following features:

  • Provides tristate support like for checked, unchecked and indeterminate states.
  • Seamlessly supports HTML and reactive forms.
  • Allows for flexible UI customization.
  • Simple configuration and API.
  • Supports all modern browsers.
  • Touch-friendly and responsive UI.
  • One of the best JavaScript Checkbox in the market that offers feature-rich UI to interact with the software.
  • Extensive demos and documentation to learn quickly and get started with JavaScript Checkbox.

You can find our JavaScript Checkbox demo, which demonstrates how to render and configure Checkbox.

No, this is a commercial product and requires a paid license. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue, 5 or fewer developers, and 10 or fewer total employees.

A good place to start would be our comprehensive getting started documentation.

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