# Collapsible: Unmounted when closed

> Set `hiddenUntilFound={false}` on the content to remove it from the DOM while closed, for heavy panels you don’t want rendered up front.

Example: https://hextaui.com/docs/collapsible/examples/unmounted
Component docs: https://hextaui.com/docs/collapsible.md

## Add this example

```bash
npx shadcn@latest add https://hextaui.com/r/collapsible-unmounted.json
```

This adds `components/examples/collapsible/unmounted.tsx` with the Collapsible component and the HextaUI theme tokens.

## Source

```tsx title="components/examples/collapsible/unmounted.tsx"
import { Button } from "@/components/ui/button"
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
  CollapsibleTriggerIcon,
} from "@/components/ui/collapsible"

export function CollapsibleUnmounted() {
  return (
    <Collapsible className="flex w-full max-w-sm flex-col gap-2">
      <CollapsibleTrigger
        render={<Button variant="secondary" />}
        className="self-start"
      >
        Details
        <CollapsibleTriggerIcon data-icon="inline-end" />
      </CollapsibleTrigger>
      <CollapsibleContent hiddenUntilFound={false}>
        <p className="text-sm text-muted-foreground">
          Rendered only while open.
        </p>
      </CollapsibleContent>
    </Collapsible>
  )
}
```

## Props in this example

### CollapsibleTrigger

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `render` | `ReactElement \| (props, state) => ReactElement` | `<button>` | Usually a Button. |

### CollapsibleContent

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `hiddenUntilFound` | `boolean` | `true` | Keeps the closed panel in the DOM so page search can find and open it. |

## More Collapsible examples

- [Open by default](https://hextaui.com/docs/collapsible/examples/open-by-default.md)
- [Show more](https://hextaui.com/docs/collapsible/examples/show-more.md)
- [Controlled](https://hextaui.com/docs/collapsible/examples/controlled.md)
- [Disabled](https://hextaui.com/docs/collapsible/examples/disabled.md)
- [Custom icon](https://hextaui.com/docs/collapsible/examples/custom-icon.md)
- [File tree](https://hextaui.com/docs/collapsible/examples/file-tree.md)
- [Inside a card](https://hextaui.com/docs/collapsible/examples/card.md)
- [Long content](https://hextaui.com/docs/collapsible/examples/long-content.md)
- [Right to left](https://hextaui.com/docs/collapsible/examples/rtl.md)