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Checkbox API

API reference docs for the React Checkbox component. Learn about the props, CSS, and other APIs of this exported module.

Component demos

Import

import Checkbox from '@mui/joy/Checkbox';
// or
import { Checkbox } from '@mui/joy';
Learn about the difference by reading this guide on minimizing bundle size.

Props

checked

If true, the component is checked.

Type:bool

checkedIcon

The icon to display when the component is checked.

Type:node

Default:<CheckIcon />

className

Class name applied to the root element.

Type:string

color

The color of the component. It supports those theme colors that make sense for this component.

To learn how to add your own colors, check out Themed components—Extend colors.

Type:'danger'
| 'neutral'
| 'primary'
| 'success'
| 'warning'
| string

Default:'neutral'

component

The component used for the root node. Either a string to use a HTML element or a component.

Type:elementType

defaultChecked

The default checked state. Use when the component is not controlled.

Type:bool

disabled

If true, the component is disabled.

Type:bool

disableIcon

If true, the checked icon is removed and the selected variant is applied on the action element instead.

Type:bool

Default:false

indeterminate

If true, the component appears indeterminate. This does not set the native input element to indeterminate due to inconsistent behavior across browsers. However, we set a data-indeterminate attribute on the input.

Type:bool

Default:false

indeterminateIcon

The icon to display when the component is indeterminate.

Type:node

Default:<IndeterminateIcon />

label

The label element next to the checkbox.

Type:node

name

The name attribute of the input.

Type:string

onChange

Callback fired when the state is changed.

Type:func

Signature:
function(event: React.ChangeEvent) => void
  • event The event source of the callback. You can pull out the new value by accessing event.target.value (string). You can pull out the new checked state by accessing event.target.checked (boolean).
overlay

If true, the root element's position is set to initial which allows the action area to fill the nearest positioned parent. This prop is useful for composing Checkbox with ListItem component.

Type:bool

Default:false

readOnly

If true, the component is read only.

Type:bool

required

If true, the input element is required.

Type:bool

size

The size of the component.

To learn how to add custom sizes to the component, check out Themed components—Extend sizes.

Type:'sm'
| 'md'
| 'lg'

Default:'md'

slotProps

The props used for each slot inside.

Type:{ action?: func
| object, checkbox?: func
| object, input?: func
| object, label?: func
| object, root?: func
| object }

Default:{}

slots

The components used for each slot inside.

See Slots API below for more details.

Type:{ action?: elementType, checkbox?: elementType, input?: elementType, label?: elementType, root?: elementType }

Default:{}

sx

The system prop that allows defining system overrides as well as additional CSS styles.

See the `sx` page for more details.

Type:Array<func
| object
| bool>
| func
| object

uncheckedIcon

The icon when checked is false.

Type:node

value

The value of the component. The DOM API casts this to a string. The browser uses "on" as the default value.

Type:Array<string>
| number
| string

variant

The global variant to use.

To learn how to add your own variants, check out Themed components—Extend variants.

Type:'outlined'
| 'plain'
| 'soft'
| 'solid'

Default:'solid'

The ref is forwarded to the root element.

Theme default props

You can use JoyCheckbox to change the default props of this component with the theme.

Slots

To learn how to customize the slot, check out the Overriding component structure guide.

root

The component that renders the root.

Global class: .MuiCheckbox-root

Default: 'span'

checkbox

The component that renders the checkbox.

Global class: .MuiCheckbox-checkbox

Default: 'span'

action

The component that renders the action.

Global class: .MuiCheckbox-action

Default: 'span'

input

The component that renders the input.

Global class: .MuiCheckbox-input

Default: 'input'

label

The component that renders the label.

Global class: .MuiCheckbox-label

Default: 'label'

CSS classes

These class names are useful for styling with CSS. They are applied to the root slot when specific states are triggered.

.Mui-checkedSTATE

State class applied to the input component's checked class.

.Mui-disabledSTATE

State class applied to the input component's disabled class.

.Mui-focusVisibleSTATE

Class name applied to the root element if the switch has visible focus

.MuiCheckbox-colorContext

Class name applied to the root element when color inversion is triggered.

.MuiCheckbox-colorDanger

Class name applied to the root element if color="danger".

.MuiCheckbox-colorNeutral

Class name applied to the root element if color="neutral".

.MuiCheckbox-colorPrimary

Class name applied to the root element if color="primary".

.MuiCheckbox-colorSuccess

Class name applied to the root element if color="success".

.MuiCheckbox-colorWarning

Class name applied to the root element if color="warning".

.MuiCheckbox-indeterminate

State class applied to the root element if indeterminate={true}.

.MuiCheckbox-sizeLg

Class name applied to the root element if size="lg".

.MuiCheckbox-sizeMd

Class name applied to the root element if size="md".

.MuiCheckbox-sizeSm

Class name applied to the root element if size="sm".

.MuiCheckbox-variantOutlined

Class name applied to the root element if variant="outlined".

.MuiCheckbox-variantSoft

Class name applied to the root element if variant="soft".

.MuiCheckbox-variantSolid

Class name applied to the root element if variant="solid".