LinearProgress API
API reference docs for the React LinearProgress component. Learn about the props, CSS, and other APIs of this exported module.
Component demos
Import
import LinearProgress from '@mui/joy/LinearProgress';
// or
import { LinearProgress } from '@mui/joy';ARIA
If the progress bar is describing the loading progress of a particular region of a page,
you should use aria-describedby to point to the progress bar, and set the aria-busy
attribute to true on that region until it has finished loading.
Props of the native component are also available.
| Name | Type | Default | Description |
|---|---|---|---|
| color | 'danger' | 'neutral' | 'primary' | 'success' | 'warning' | string | 'primary' | 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. |
| component | elementType | The component used for the root node. Either a string to use a HTML element or a component. | |
| determinate | bool | false | The boolean to select a variant. Use indeterminate when there is no progress value. |
| size | 'sm' | 'md' | 'lg' | string | 'md' | The size of the component. It accepts theme values between 'sm' and 'lg'. To learn how to add custom sizes to the component, check out Themed components—Extend sizes. |
| 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. |
| sx | Array<func | 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. | |
| thickness | number | The thickness of the bar. | |
| value | number | determinate ? 0 : 25 | The value of the progress indicator for the determinate variant. Value between 0 and 100. |
| variant | 'outlined' | 'plain' | 'soft' | 'solid' | string | 'soft' | The global variant to use. To learn how to add your own variants, check out Themed components—Extend variants. |
ref is forwarded to the root element.Theme default props
You can use JoyLinearProgress 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 name | Class name | Default component | Description |
|---|---|---|---|
| root | .MuiLinearProgress-root | 'div' | The component that renders the root. |
These class names are useful for styling with CSS. They are applied to the component's slots when specific states are triggered.
| Class name | Rule name | Description |
|---|---|---|
| .MuiLinearProgress-colorContext | colorContext | Class name applied to the root element when color inversion is triggered. |
| .MuiLinearProgress-colorDanger | colorDanger | Class name applied to the root element if color="danger". |
| .MuiLinearProgress-colorNeutral | colorNeutral | Class name applied to the root element if color="neutral". |
| .MuiLinearProgress-colorPrimary | colorPrimary | Class name applied to the root element if color="primary". |
| .MuiLinearProgress-colorSuccess | colorSuccess | Class name applied to the root element if color="success". |
| .MuiLinearProgress-colorWarning | colorWarning | Class name applied to the root element if color="warning". |
| .MuiLinearProgress-determinate | determinate | Class name applied to the root element if determinate is true. |
| .MuiLinearProgress-sizeLg | sizeLg | Class name applied to the root element if size="lg". |
| .MuiLinearProgress-sizeMd | sizeMd | Class name applied to the root element if size="md". |
| .MuiLinearProgress-sizeSm | sizeSm | Class name applied to the root element if size="sm". |
| .MuiLinearProgress-variantOutlined | variantOutlined | Class name applied to the root element if variant="outlined". |
| .MuiLinearProgress-variantPlain | variantPlain | Class name applied to the root element if variant="plain". |
| .MuiLinearProgress-variantSoft | variantSoft | Class name applied to the root element if variant="soft". |
| .MuiLinearProgress-variantSolid | variantSolid | Class name applied to the root element if variant="solid". |
You can override the style of the component using one of these customization options:
- With a global class name.
- With a rule name as part of the component's
styleOverridesproperty in a custom theme.