> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/mui/base-ui/llms.txt
> Use this file to discover all available pages before exploring further.

# Radio

> API reference for the Radio component

# Radio

A radio button allows the user to select one option from a set.

## Import

```tsx theme={null}
import * as Radio from '@base-ui/react/radio';
```

## Radio.Root

Represents the radio button itself.

### Props

<ParamField name="value" type="any" required>
  The unique identifying value of the radio in a group.
</ParamField>

<ParamField name="disabled" type="boolean">
  Whether the component should ignore user interaction.
</ParamField>

<ParamField name="required" type="boolean">
  Whether the user must choose a value before submitting a form.
</ParamField>

<ParamField name="readOnly" type="boolean">
  Whether the user should be unable to select the radio button.
</ParamField>

<ParamField name="inputRef" type="React.Ref<HTMLInputElement>">
  A ref to access the hidden input element.
</ParamField>

<ParamField name="nativeButton" type="boolean" default="false">
  Whether the component renders a native `<button>` element when replacing it via the `render` prop.
</ParamField>

### State

* `checked`: boolean - Whether the radio button is currently selected
* `disabled`: boolean - Whether the component should ignore user interaction
* `readOnly`: boolean - Whether the user should be unable to select the radio button
* `required`: boolean - Whether the user must choose a value before submitting a form

## Radio.Indicator

Visual indicator for the selected state.

### Props

<ParamField name="keepMounted" type="boolean" default="false">
  Whether to keep the indicator mounted when not selected.
</ParamField>