Radio

An easily stylable radio button component.

Best apple

FujiGalaGranny Smith

import { Radio } from '@base-ui-components/react/radio';
import { RadioGroup } from '@base-ui-components/react/radio-group';
import styles from './index.module.css';

export default function ExampleRadioGroup() {
  return (
    <RadioGroup
      aria-labelledby="apples-caption"
      defaultValue="fuji-apple"
      className={styles.RadioGroup}
    >
      <div className={styles.Caption} id="apples-caption">
        Best apple
      </div>

      <label className={styles.Item}>
        <Radio.Root value="fuji-apple" className={styles.Radio}>
          <Radio.Indicator className={styles.Indicator} />
        </Radio.Root>
        Fuji
      </label>

      <label className={styles.Item}>
        <Radio.Root value="gala-apple" className={styles.Radio}>
          <Radio.Indicator className={styles.Indicator} />
        </Radio.Root>
        Gala
      </label>

      <label className={styles.Item}>
        <Radio.Root value="granny-smith-apple" className={styles.Radio}>
          <Radio.Indicator className={styles.Indicator} />
        </Radio.Root>
        Granny Smith
      </label>
    </RadioGroup>
  );
}

Anatomy

Radio is always placed within Radio Group. Import the components and place them together:

Anatomy

import { Radio } from '@base-ui-components/react/radio';
import { RadioGroup } from '@base-ui-components/react/radio-group';

<RadioGroup>
  <Radio.Root>
    <Radio.Indicator />
  </Radio.Root>
</RadioGroup>

API reference

RadioGroup

Provides a shared state to a series of radio buttons. Renders a <div> element.

name

string

—

Name: name
Description: Identifies the field when a form is submitted.
Type: string | undefined

defaultValue

unknown

—

Name: defaultValue
Description: The uncontrolled value of the radio button that should be initially selected.

To render a controlled radio group, use the value prop instead.
Type: unknown

value

unknown

—

Name: value
Description: The controlled value of the radio item that should be currently selected.

To render an uncontrolled radio group, use the defaultValue prop instead.
Type: unknown

onValueChange

function

—

Name: onValueChange
Description: Callback fired when the value changes.
Type: | (( value: unknown, eventDetails: Radio.Group.ChangeEventDetails, ) => void) | undefined

style

React.CSSProperties | function

—

Name: style
Type: | React.CSSProperties | ((state: RadioGroup.State) => CSSProperties | undefined) | undefined

disabled

boolean

false

Name: disabled
Description: Whether the component should ignore user interaction.
Type: boolean | undefined
Default: false

readOnly

boolean

false

Name: readOnly
Description: Whether the user should be unable to select a different radio button in the group.
Type: boolean | undefined
Default: false

required

boolean

false

Name: required
Description: Whether the user must choose a value before submitting a form.
Type: boolean | undefined
Default: false

inputRef

Ref<HTMLInputElement>

—

Name: inputRef
Description: A ref to access the hidden input element.
Type: React.Ref<HTMLInputElement> | undefined

className

string | function

—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: RadioGroup.State) => string | undefined)

render

ReactElement | function

—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | (( props: HTMLProps, state: RadioGroup.State, ) => ReactElement)

data-disabled

Present when the radio group is disabled.

Attribute	Description	-
`data-disabled`	Present when the radio group is disabled.

Root

Represents the radio button itself. Renders a <button> element and a hidden <input> beside.

value^*

any

—

Name: value
Description: The unique identifying value of the radio in a group.
Type: any

nativeButton

boolean

true

Name: nativeButton
Description: Whether the component renders a native <button> element when replacing it via the render prop. Set to false if the rendered element is not a button (e.g. <div>).
Type: boolean | undefined
Default: true

style

React.CSSProperties | function

—

Name: style
Type: | React.CSSProperties | ((state: Radio.Root.State) => CSSProperties | undefined) | undefined

disabled

boolean

—

Name: disabled
Description: Whether the component should ignore user interaction.
Type: boolean | undefined

readOnly

boolean

—

Name: readOnly
Description: Whether the user should be unable to select the radio button.
Type: boolean | undefined

required

boolean

—

Name: required
Description: Whether the user must choose a value before submitting a form.
Type: boolean | undefined

inputRef

Ref<HTMLInputElement>

—

Name: inputRef
Description: A ref to access the hidden input element.
Type: React.Ref<HTMLInputElement> | undefined

className

string | function

—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: Radio.Root.State) => string | undefined)

render

ReactElement | function

—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | (( props: HTMLProps, state: Radio.Root.State, ) => ReactElement)

data-checked

Present when the radio is checked.

data-unchecked

Present when the radio is not checked.

data-disabled

Present when the radio is disabled.

data-readonly

Present when the radio is readonly.

data-required

Present when the radio is required.

data-valid

Present when the radio is in valid state (when wrapped in Field.Root).

data-invalid

Present when the radio is in invalid state (when wrapped in Field.Root).

data-dirty

Present when the radio's value has changed (when wrapped in Field.Root).

data-touched

Present when the radio has been touched (when wrapped in Field.Root).

data-filled

Present when the radio is checked (when wrapped in Field.Root).

data-focused

Present when the radio is focused (when wrapped in Field.Root).

Attribute	Description	-
`data-checked`	Present when the radio is checked.
`data-unchecked`	Present when the radio is not checked.
`data-disabled`	Present when the radio is disabled.
`data-readonly`	Present when the radio is readonly.
`data-required`	Present when the radio is required.
`data-valid`	Present when the radio is in valid state (when wrapped in Field.Root).
`data-invalid`	Present when the radio is in invalid state (when wrapped in Field.Root).
`data-dirty`	Present when the radio's value has changed (when wrapped in Field.Root).
`data-touched`	Present when the radio has been touched (when wrapped in Field.Root).
`data-filled`	Present when the radio is checked (when wrapped in Field.Root).
`data-focused`	Present when the radio is focused (when wrapped in Field.Root).

Indicator

Indicates whether the radio button is selected. Renders a <span> element.

style

React.CSSProperties | function

—

Name: style
Type: | React.CSSProperties | (( state: Radio.Indicator.State, ) => CSSProperties | undefined) | undefined

className

string | function

—

Name: className
Description: CSS class applied to the element, or a function that returns a class based on the component’s state.
Type: | string | ((state: Radio.Indicator.State) => string | undefined)

keepMounted

boolean

false

Name: keepMounted
Description: Whether to keep the HTML element in the DOM when the radio button is inactive.
Type: boolean | undefined
Default: false

render

ReactElement | function

—

Name: render
Description: Allows you to replace the component’s HTML element with a different tag, or compose it with another component.

Accepts a ReactElement or a function that returns the element to render.
Type: | ReactElement | (( props: HTMLProps, state: Radio.Indicator.State, ) => ReactElement)

data-checked

Present when the radio is checked.

data-unchecked

Present when the radio is not checked.

data-disabled

Present when the radio is disabled.

data-readonly

Present when the radio is readonly.

data-required

Present when the radio is required.

data-valid

Present when the radio is in valid state (when wrapped in Field.Root).

data-invalid

Present when the radio is in invalid state (when wrapped in Field.Root).

data-dirty

Present when the radio's value has changed (when wrapped in Field.Root).

data-touched

Present when the radio has been touched (when wrapped in Field.Root).

data-filled

Present when the radio is checked (when wrapped in Field.Root).

data-focused

Present when the radio is focused (when wrapped in Field.Root).

Attribute	Description	-
`data-checked`	Present when the radio is checked.
`data-unchecked`	Present when the radio is not checked.
`data-disabled`	Present when the radio is disabled.
`data-readonly`	Present when the radio is readonly.
`data-required`	Present when the radio is required.
`data-valid`	Present when the radio is in valid state (when wrapped in Field.Root).
`data-invalid`	Present when the radio is in invalid state (when wrapped in Field.Root).
`data-dirty`	Present when the radio's value has changed (when wrapped in Field.Root).
`data-touched`	Present when the radio has been touched (when wrapped in Field.Root).
`data-filled`	Present when the radio is checked (when wrapped in Field.Root).
`data-focused`	Present when the radio is focused (when wrapped in Field.Root).

Examples

Form integration

To use a radio group in a form:

Pass the group’s name to <Field>
Use the render prop to compose <Fieldset> and <RadioGroup>
Use <Field.Item> to wrap each radio in the group

Using RadioGroup in a form

<Form>
  <Field.Root name="shipping">
    <Fieldset.Root render={<RadioGroup />}>
      <Fieldset.Legend>Shipping method</Fieldset.Legend>
      <Field.Item>
        <Field.Label>
          <Radio.Root value="standard" />
          Standard
        </Field.Label>
      </Field.Item>
      <Field.Item>
        <Field.Label>
          <Radio.Root value="express" />
          Express
        </Field.Label>
        ` `{' '}
      </Field.Item>
    </Fieldset.Root>
  </Field.Root>
</Form>