snapshot of https://github.com/shadcn-ui/ui.git (main, 2026-09-15; blobs > 131072B omitted)

apps/v4/content/docs/components/aria/resizable.mdx

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+---
+title: Resizable
+description: Accessible resizable panel groups and layouts with keyboard support.
+base: aria
+component: true
+links:
+  doc: https://github.com/bvaughn/react-resizable-panels
+  api: https://github.com/bvaughn/react-resizable-panels
+---
+
+<ComponentPreview
+  styleName="aria-nova"
+  name="resizable-demo"
+  previewClassName="h-80"
+/>
+
+## About
+
+The `Resizable` component is built on top of [react-resizable-panels](https://github.com/bvaughn/react-resizable-panels) by [bvaughn](https://github.com/bvaughn).
+
+## Installation
+
+<CodeTabs>
+
+<TabsList>
+  <TabsTrigger value="cli">Command</TabsTrigger>
+  <TabsTrigger value="manual">Manual</TabsTrigger>
+</TabsList>
+<TabsContent value="cli">
+
+```bash
+npx shadcn@latest add resizable
+```
+
+</TabsContent>
+
+<TabsContent value="manual">
+
+<Steps className="mb-0 pt-2">
+
+<Step>Install the following dependencies:</Step>
+
+```bash
+npm install react-resizable-panels
+```
+
+<Step>Copy and paste the following code into your project.</Step>
+
+<ComponentSource
+  name="resizable"
+  title="components/ui/resizable.tsx"
+  styleName="aria-nova"
+/>
+
+<Step>Update the import paths to match your project setup.</Step>
+
+</Steps>
+
+</TabsContent>
+
+</CodeTabs>
+
+## Usage
+
+```tsx showLineNumbers
+import {
+  ResizableHandle,
+  ResizablePanel,
+  ResizablePanelGroup,
+} from "@/components/ui/resizable"
+```
+
+```tsx showLineNumbers
+<ResizablePanelGroup orientation="horizontal">
+  <ResizablePanel>One</ResizablePanel>
+  <ResizableHandle />
+  <ResizablePanel>Two</ResizablePanel>
+</ResizablePanelGroup>
+```
+
+## Composition
+
+Use the following composition to build a `ResizablePanelGroup`:
+
+```text
+ResizablePanelGroup
+├── ResizablePanel
+├── ResizableHandle
+└── ResizablePanel
+```
+
+## Vertical
+
+Use `orientation="vertical"` for vertical resizing.
+
+<ComponentPreview styleName="aria-nova" name="resizable-vertical" />
+
+## Handle
+
+Use the `withHandle` prop on `ResizableHandle` to show a visible handle.
+
+<ComponentPreview styleName="aria-nova" name="resizable-handle" />
+
+## RTL
+
+To enable RTL support in shadcn/ui, see the [RTL configuration guide](/docs/rtl).
+
+<ComponentPreview styleName="aria-nova" name="resizable-rtl" direction="rtl" />
+
+## API Reference
+
+See the [react-resizable-panels](https://github.com/bvaughn/react-resizable-panels) documentation.
+
+## Changelog
+
+### 2025-02-02 `react-resizable-panels` v4
+
+Updated to `react-resizable-panels` v4. See the [v4.0.0 release notes](https://github.com/bvaughn/react-resizable-panels/releases/tag/4.0.0) for full details.
+
+If you're using `react-resizable-panels` primitives directly, note the following changes:
+
+| v3                           | v4                      |
+| ---------------------------- | ----------------------- |
+| `PanelGroup`                 | `Group`                 |
+| `PanelResizeHandle`          | `Separator`             |
+| `direction` prop             | `orientation` prop      |
+| `defaultSize={50}`           | `defaultSize="50%"`     |
+| `onLayout`                   | `onLayoutChange`        |
+| `ImperativePanelHandle`      | `PanelImperativeHandle` |
+| `ref` prop on Panel          | `panelRef` prop         |
+| `data-panel-group-direction` | `aria-orientation`      |
+
+<Callout>
+  The shadcn/ui wrapper components (`ResizablePanelGroup`, `ResizablePanel`,
+  `ResizableHandle`) remain unchanged.
+</Callout>