Slider

A slider is a UI element that lets users select a single value or a range of values along a bar.

Slider API

Import

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

Learn about the difference by reading this guide on minimizing bundle size.

Props

Props of the native component are also available.

aria-label

The label of the slider.

Type:string

aria-labelledby

The id of the element containing a label for the slider.

Type:string

aria-valuetext

A string value that provides a user-friendly name for the current value of the slider.

Type:string

defaultValue

The default value. Use when the component is not controlled.

Type:Array<number> | number

disabled

If true, the component is disabled.

Type:bool

Default:false

disableSwap

If true, the active thumb doesn't swap when moving pointer over a thumb while dragging another thumb.

Type:bool

Default:false

getAriaLabel

Accepts a function which returns a string value that provides a user-friendly name for the thumb labels of the slider. This is important for screen reader users.

Type:func

Signature:

function(index: number) => string

index The thumb label's index to format.

getAriaValueText

Accepts a function which returns a string value that provides a user-friendly name for the current value of the slider. This is important for screen reader users.

Type:func

Signature:

function(value: number, index: number) => string

value The thumb label's value to format.
index The thumb label's index to format.

isRtl

If true the Slider will be rendered right-to-left (with the lowest value on the right-hand side).

Type:bool

Default:false

marks

Marks indicate predetermined values to which the user can move the slider. If true the marks are spaced according the value of the step prop. If an array, it should contain objects with value and an optional label keys.

Type:Array<{ label?: node, value: number }> | bool

Default:false

max

The maximum allowed value of the slider. Should not be equal to min.

Type:number

Default:100

min

The minimum allowed value of the slider. Should not be equal to max.

Type:number

Default:0

name

Name attribute of the hidden input element.

Type:string

onChange

Callback function that is fired when the slider's value changed.

Type:func

Signature:

function(event: Event, value: number | Array, activeThumb: number) => void

event The event source of the callback. You can pull out the new value by accessing event.target.value (any). Warning: This is a generic event not a change event.
value The new value.
activeThumb Index of the currently moved thumb.

onChangeCommitted

Callback function that is fired when the mouseup is triggered.

Type:func

Signature:

function(event: React.SyntheticEvent | Event, value: number | Array) => void

event The event source of the callback. Warning: This is a generic event not a change event.
value The new value.

orientation

The component orientation.

Type:'horizontal' | 'vertical'

Default:'horizontal'

scale

A transformation function, to change the scale of the slider.

Type:func

Default:function Identity(x) { return x; }

Signature:

function(x: any) => any

slotProps

The props used for each slot inside the Slider.

Type:{ input?: func | object, mark?: func | object, markLabel?: func | object, rail?: func | object, root?: func | object, thumb?: func | object, track?: func | object, valueLabel?: any | func }

Default:{}

slots

The components used for each slot inside the Slider. Either a string to use a HTML element or a component.

See Slots API below for more details.

Type:{ input?: elementType, mark?: elementType, markLabel?: elementType, rail?: elementType, root?: elementType, thumb?: elementType, track?: elementType, valueLabel?: elementType }

Default:{}

step

The granularity with which the slider can step through values. (A "discrete" slider.) The min prop serves as the origin for the valid values. We recommend (max - min) to be evenly divisible by the step.
When step is null, the thumb can only be slid onto marks provided with the marks prop.

Type:number

Default:1

tabIndex

Tab index attribute of the hidden input element.

Type:number

track

The track presentation:

normal the track will render a bar representing the slider value.
inverted the track will render a bar representing the remaining slider value.
false the track will render without a bar.

Type:'inverted' | 'normal' | false

Default:'normal'

value

The value of the slider. For ranged sliders, provide an array with two values.

Type:Array<number> | number

valueLabelFormat

The format function the value label's value.
When a function is provided, it should have the following signature:
- {number} value The value label's value to format - {number} index The value label's index to format

Type:func | string

Default:function Identity(x) { return x; }

The ref is forwarded to the root element.

Slots

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

root

The component that renders the root.

Class name: .base-Slider-root

Default component: 'span'

track

The component that renders the track.

Class name: .base-Slider-track

Default component: 'span'

rail

The component that renders the rail.

Class name: .base-Slider-rail

Default component: 'span'

thumb

The component that renders the thumb.

Class name: .base-Slider-thumb

Default component: 'span'

mark

The component that renders the mark.

Class name: .base-Slider-mark

Default component: 'span'

markLabel

The component that renders the mark label.

Class name: .base-Slider-markLabel

Default component: 'span'

valueLabel

The component that renders the value label.

input

The component that renders the input.

Default component: 'input'

CSS classes

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

.base--activeSTATE

State class applied to the thumb element if it's active.

.base--disabledSTATE

State class applied to the root and thumb element if disabled={true}.

.base--focusVisibleSTATE

State class applied to the thumb element if keyboard focused.

.base-Slider-dragging

State class applied to the root if a thumb is being dragged.

.base-Slider-markActive

Class name applied to the mark element if active (depending on the value).

.base-Slider-marked

Class name applied to the root element if marks is provided with at least one label.

.base-Slider-markLabelActive

Class name applied to the mark label element if active (depending on the value).

.base-Slider-trackFalse

Class name applied to the root element if track={false}.

.base-Slider-trackInverted

Class name applied to the root element if track="inverted".

.base-Slider-vertical

Class name applied to the root element if orientation="vertical".