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Accordion API

API reference docs for the React Accordion component. Learn about the props, CSS, and other APIs of this exported module.



import Accordion from '@mui/joy/Accordion';
// or
import { Accordion } from '@mui/joy';

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


Props of the native component are also available.


The id to be used in the AccordionDetails which is controlled by the AccordionSummary. If not provided, the id is autogenerated.


Used to render icon or text elements inside the Accordion if src is not set. This can be an element, or just a string.

| 'neutral'
| 'primary'
| 'success'
| 'warning'

The color of the component. It supports those theme colors that make sense for this component.

To learn how to add your own colors, check out Themed components—Extend colors.


The component used for the root node. Either a string to use a HTML element or a component.


If true, expands the accordion by default.


If true, the component is disabled.


If true, expands the accordion, otherwise collapse it. Setting this prop enables control over the accordion.


Callback fired when the expand/collapse state is changed.

Signature:function(event: React.SyntheticEvent, expanded: boolean) => void
  • event The event source of the callback. Warning: This is a generic event not a change event.
  • expanded The expanded state of the accordion.
slotProps{ root?: func
| object }

The props used for each slot inside.

slots{ root?: elementType }{}

The components used for each slot inside.

See Slots API below for more details.

| object
| bool>
| func
| object

The system prop that allows defining system overrides as well as additional CSS styles.

See the `sx` page for more details.

| 'plain'
| 'soft'
| 'solid'

The global variant to use.

To learn how to add your own variants, check out Themed components—Extend variants.

The ref is forwarded to the root element.

Theme default props

You can use JoyAccordion to change the default props of this component with the theme.


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

Slot nameClass nameDefault componentDescription
root.MuiAccordion-root'div'The component that renders the root.

CSS classes

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

Class nameRule nameDescription
.Mui-disabledClass name applied to the root element if disabled is true.
.Mui-expandedClass name applied to the root element if expanded is true.

You can override the style of the component using one of these customization options: