Switch

Switches are UI elements that let users choose between two states—most commonly on/off.

Switch API

import { Switch } from '@mui/base/Switch';
// or
import { Switch } from '@mui/base';

Props of the native component are also available.

Name	Type	Default	Description
checked	bool		If `true`, the component is checked.
className	string		Class name applied to the root element.
defaultChecked	bool		The default checked state. Use when the component is not controlled.
disabled	bool		If `true`, the component is disabled.
onChange	func		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).
readOnly	bool		If `true`, the component is read only.
required	bool		If `true`, the `input` element is required.
slotProps	{ input?: func \| object, root?: func \| object, thumb?: func \| object, track?: func \| object }	{}	The props used for each slot inside the Switch.
slots	{ input?: elementType, root?: elementType, thumb?: elementType, track?: elementType \| null }	{}	The components used for each slot inside the Switch. Either a string to use a HTML element or a component. See Slots API below for more details.

The ref is forwarded to the root element.

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

Slot name	Class name	Default component	Description
root	.base-Switch-root	`'span'`	The component that renders the root.
input	.base-Switch-input	`'input'`	The component that renders the input.
thumb	.base-Switch-thumb	`'span'`	The component that renders the thumb.
track	.base-Switch-track	`'span'`	The component that renders the track.

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

Class name	Description
.base--checked	State class applied to the root element if the switch is checked
.base--disabled	State class applied to the root element if the switch is disabled
.base--focusVisible	State class applied to the root element if the switch has visible focus
.base--readOnly	Class applied to the root element if the switch is read-only