Radio

Alpha

Use radios when a user needs to select one option from a list

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Examples
Grouping Radio components
Props
Status

Examples

Use FormControl to render a standard radio input field. This component is only meant to be used in the case that you're building a custom radio that is not yet supported by Primer (For example: the color mode selection in Appearance settings)

If you do use this component to build a custom radio, it should always be accompanied by a corresponding <label> to improve support for assistive technologies.

<>
  <Radio value="one" name="radio-group-name" />
  <Radio value="two" name="radio-group-name" />
  <Radio disabled value="three" name="radio-group-name" />
</>

<>
  <Radio value="one" name="radio-group-name" />
  <Radio value="two" name="radio-group-name" />
  <Radio disabled value="three" name="radio-group-name" />
</>

Please use a Checkbox if the user needs to select more than one option in a list

Grouping Radio components

Use the name prop to group together related Radio components in a list.

If you're not building something custom, you should use the ChoiceFieldset component to render a group of radio inputs.

<form>
  <FormControl>
    <Radio value="1" name="radio-example" />
    <FormControl.Label>Radio 1</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="2" name="radio-example" />
    <FormControl.Label>Radio 2</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="3" name="radio-example" />
    <FormControl.Label>Radio 3</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="4" name="radio-example" />
    <FormControl.Label>Radio 4</FormControl.Label>
  </FormControl>
</form>

<form>
  <FormControl>
    <Radio value="1" name="radio-example" />
    <FormControl.Label>Radio 1</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="2" name="radio-example" />
    <FormControl.Label>Radio 2</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="3" name="radio-example" />
    <FormControl.Label>Radio 3</FormControl.Label>
  </FormControl>
  <FormControl>
    <Radio value="4" name="radio-example" />
    <FormControl.Label>Radio 4</FormControl.Label>
  </FormControl>
</form>

Props

Name	Type	Description
value Required	string	A unique value that is never shown to the user
name Required	string	Required for grouping multiple radios
checked	boolean	Modifies true/false value of the native radio
defaultChecked	boolean	Selects the radio by default in uncontrolled mode
onChange	(event: React.ChangeEvent) => void	A callback function that is triggered when the input state has been changed
disabled	boolean	Modifies the native disabled state of the native checkbox
sx	SystemStyleObject	Style overrides to apply to the component. See also overriding styles.
ref	React.RefObject<HTMLInputElement>	A ref to the element rendered by this component.
Additional props are passed to the `<input>` element. See MDN for a list of props accepted by the `<input>` element.

Status

Alpha

Component props are documented on primer.style/react.
Component does not have any unnecessary third-party dependencies.
Component can adapt to different themes.
Component can adapt to different screen sizes.
Component has 100% test coverage.

Beta

Component is used in a production application.
Common usage examples are documented on primer.style/react.
Common usage examples are documented in storybook stories.
Component has been reviewed by a systems designer and any resulting issues have been addressed.
Component has been manually reviewed by the accessibility team and any resulting issues have been addressed.

Stable

Component API has been stable with no breaking changes for at least one month.
Feedback on API usability has been sought from developers using the component and any resulting issues have been addressed.
Component has corresponding design guidelines documented in the interface guidelines.
Component has corresponding Figma component in the Primer Web library.

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