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Radio API

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

Component demos

Import

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

Props

NameTypeDefaultDescription
checkedbool-

If true, the component is checked.

checkedIconnode-

The icon to display when the component is checked.

classNamestring-

Class name applied to the root element.

color'danger'
| 'primary'
| 'success'
| 'warning'
| string
'neutral'

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.

componentelementType-

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

defaultCheckedbool-

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

disabledbool-

If true, the component is disabled.

disableIconboolfalse

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

labelnode-

The label element at the end the radio.

namestring-

The name attribute of the input.

onChangefunc-

Callback fired when the state is changed.

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).
overlayboolfalse

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 Radio with ListItem component.

readOnlybool-

If true, the component is read only.

requiredbool-

If true, the input element is required.

size'sm'
| 'md'
| 'lg'
| string
'md'

The size of the component.

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

slotProps{ action?: func
| object, icon?: func
| object, input?: func
| object, label?: func
| object, radio?: func
| object, root?: func
| object }
{}

The props used for each slot inside.

slots{ action?: elementType, icon?: elementType, input?: elementType, label?: elementType, radio?: elementType, root?: elementType }{}

The components used for each slot inside.

See Slots API below for more details.

sxArray<func
| object
| bool>
| func
| object
-

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

See the `sx` page for more details.

uncheckedIconnode-

The icon to display when the component is not checked.

valueany-

The value of the component. The DOM API casts this to a string.

variant'outlined'
| 'plain'
| 'soft'
| 'solid'
| string
'outlined'

The global variant to use.

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

The ref is forwarded to the root element.

Theme default props

You can use JoyRadio 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.

Slot nameClass nameDefault componentDescription
root.MuiRadio-root'span'The component that renders the root.
radio.MuiRadio-radio'span'The component that renders the radio.
icon.MuiRadio-icon'span'The component that renders the icon.
action.MuiRadio-action'span'The component that renders the action.
input.MuiRadio-input'input'The component that renders the input.
label.MuiRadio-label'label'The component that renders the label.

CSS classes

These class names are useful for styling with CSS. They are applied to the component's slots when specific states are triggered.

Class nameRule nameDescription
.Mui-checkedState class applied to the root, action slots if checked.
.Mui-disabledState class applied to the root, action slots if disabled.
.Mui-focusVisibleClass name applied to the root element if the switch has visible focus
.MuiRadio-colorContextcolorContextClass name applied to the root element when color inversion is triggered.
.MuiRadio-colorDangercolorDangerClass name applied to the root element if color="danger".
.MuiRadio-colorNeutralcolorNeutralClass name applied to the root element if color="neutral".
.MuiRadio-colorPrimarycolorPrimaryClass name applied to the root element if color="primary".
.MuiRadio-colorSuccesscolorSuccessClass name applied to the root element if color="success".
.MuiRadio-colorWarningcolorWarningClass name applied to the root element if color="warning".
.MuiRadio-sizeLgsizeLgClass name applied to the root element if size="lg".
.MuiRadio-sizeMdsizeMdClass name applied to the root element if size="md".
.MuiRadio-sizeSmsizeSmClass name applied to the root element if size="sm".
.MuiRadio-variantOutlinedvariantOutlinedClass name applied to the root element if variant="outlined".
.MuiRadio-variantSoftvariantSoftClass name applied to the root element if variant="soft".
.MuiRadio-variantSolidvariantSolidClass name applied to the root element if variant="solid".

You can override the style of the component using one of these customization options: