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Sidebar

A collapsible app-shell navigation panel for dashboards, docs, and admin tools — with the neobrutalist borders-and-shadows treatment.

"use client"

import * as React from "react"

The sidebar is a complete app-shell navigation layer: provider, collapsible panel, groups, menus, rail, and trigger. It's an in-house composition rather than a wrapper over a single primitive — mobile viewports get a modal Sheet, icon-collapse mode gets Tooltip labels — styled to the neobrutalist recipe: thick borders, hard shadows, and bold type.

Reach for it when:

  • Dashboards and admin panels — grouped nav with badges, menu actions, and a user menu pinned in the footer.
  • Documentation sites — nested page trees built from collapsible groups and submenus, with active-page state.
  • Multi-workspace apps — a workspace switcher in the header, per-project menus below, icon collapse to reclaim width.

Installation

pnpm dlx shadcn@latest add https://neobrutalism.com/r/base/sidebar.json
npx shadcn@latest add https://neobrutalism.com/r/base/sidebar.json
yarn dlx shadcn@latest add https://neobrutalism.com/r/base/sidebar.json
bunx --bun shadcn@latest add https://neobrutalism.com/r/base/sidebar.json
components/ui/sidebar.tsx
"use client"

import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"
import { PanelLeftIcon } from "lucide-react"
import { Slot } from "radix-ui"

import { cn } from "@/lib/utils"
import { useIsMobile } from "@/hooks/use-mobile"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Separator } from "@/components/ui/separator"
import {
  Sheet,
  SheetContent,
  SheetDescription,
  SheetHeader,
  SheetTitle,
} from "@/components/ui/sheet"
import { Skeleton } from "@/components/ui/skeleton"
import {
  Tooltip,
  TooltipContent,
  TooltipProvider,
  TooltipTrigger,
} from "@/components/ui/tooltip"

const SIDEBAR_COOKIE_NAME = "sidebar_state"
const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
const SIDEBAR_WIDTH = "16rem"
const SIDEBAR_WIDTH_MOBILE = "18rem"
const SIDEBAR_WIDTH_ICON = "3rem"
const SIDEBAR_KEYBOARD_SHORTCUT = "b"

type SidebarContextProps = {
  state: "expanded" | "collapsed"
  open: boolean
  setOpen: (open: boolean) => void
  openMobile: boolean
  setOpenMobile: (open: boolean) => void
  isMobile: boolean
  toggleSidebar: () => void
}

const SidebarContext = React.createContext<SidebarContextProps | null>(null)

function useSidebar() {
  const context = React.useContext(SidebarContext)
  if (!context) {
    throw new Error("useSidebar must be used within a SidebarProvider.")
  }

  return context
}

function SidebarProvider({
  defaultOpen = true,
  open: openProp,
  onOpenChange: setOpenProp,
  className,
  style,
  children,
  ...props
}: React.ComponentProps<"div"> & {
  defaultOpen?: boolean
  open?: boolean
  onOpenChange?: (open: boolean) => void
}) {
  const isMobile = useIsMobile()
  const [openMobile, setOpenMobile] = React.useState(false)

  // This is the internal state of the sidebar.
  // We use openProp and setOpenProp for control from outside the component.
  const [_open, _setOpen] = React.useState(defaultOpen)
  const open = openProp ?? _open
  const setOpen = React.useCallback(
    (value: boolean | ((value: boolean) => boolean)) => {
      const openState = typeof value === "function" ? value(open) : value
      if (setOpenProp) {
        setOpenProp(openState)
      } else {
        _setOpen(openState)
      }

      // This sets the cookie to keep the sidebar state.
      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`
    },
    [setOpenProp, open]
  )

  // Helper to toggle the sidebar.
  const toggleSidebar = React.useCallback(() => {
    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open)
  }, [isMobile, setOpen, setOpenMobile])

  // Adds a keyboard shortcut to toggle the sidebar.
  React.useEffect(() => {
    const handleKeyDown = (event: KeyboardEvent) => {
      if (
        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
        (event.metaKey || event.ctrlKey)
      ) {
        event.preventDefault()
        toggleSidebar()
      }
    }

    window.addEventListener("keydown", handleKeyDown)
    return () => window.removeEventListener("keydown", handleKeyDown)
  }, [toggleSidebar])

  // We add a state so that we can do data-state="expanded" or "collapsed".
  // This makes it easier to style the sidebar with Tailwind classes.
  const state = open ? "expanded" : "collapsed"

  const contextValue = React.useMemo<SidebarContextProps>(
    () => ({
      state,
      open,
      setOpen,
      isMobile,
      openMobile,
      setOpenMobile,
      toggleSidebar,
    }),
    [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar]
  )

  return (
    <SidebarContext.Provider value={contextValue}>
      <TooltipProvider delayDuration={0}>
        <div
          data-slot="sidebar-wrapper"
          style={
            {
              "--sidebar-width": SIDEBAR_WIDTH,
              "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
              ...style,
            } as React.CSSProperties
          }
          className={cn(
            "group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
            className
          )}
          {...props}
        >
          {children}
        </div>
      </TooltipProvider>
    </SidebarContext.Provider>
  )
}

function Sidebar({
  side = "left",
  variant = "sidebar",
  collapsible = "offcanvas",
  className,
  children,
  dir,
  ...props
}: React.ComponentProps<"div"> & {
  side?: "left" | "right"
  variant?: "sidebar" | "floating" | "inset"
  collapsible?: "offcanvas" | "icon" | "none"
}) {
  const { isMobile, state, openMobile, setOpenMobile } = useSidebar()

  if (collapsible === "none") {
    return (
      <div
        data-slot="sidebar"
        className={cn(
          "flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
          className
        )}
        {...props}
      >
        {children}
      </div>
    )
  }

  if (isMobile) {
    return (
      <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
        <SheetContent
          dir={dir}
          data-sidebar="sidebar"
          data-slot="sidebar"
          data-mobile="true"
          className="w-(--sidebar-width) bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
          style={
            {
              "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
            } as React.CSSProperties
          }
          side={side}
        >
          <SheetHeader className="sr-only">
            <SheetTitle>Sidebar</SheetTitle>
            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
          </SheetHeader>
          <div className="flex h-full w-full flex-col">{children}</div>
        </SheetContent>
      </Sheet>
    )
  }

  return (
    <div
      className="group peer hidden text-sidebar-foreground md:block"
      data-state={state}
      data-collapsible={state === "collapsed" ? collapsible : ""}
      data-variant={variant}
      data-side={side}
      data-slot="sidebar"
    >
      {/* This is what handles the sidebar gap on desktop */}
      <div
        data-slot="sidebar-gap"
        className={cn(
          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
          "group-data-[collapsible=offcanvas]:w-0",
          "group-data-[side=right]:rotate-180",
          variant === "floating" || variant === "inset"
            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)"
        )}
      />
      <div
        data-slot="sidebar-container"
        data-side={side}
        className={cn(
          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear data-[side=left]:left-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:right-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] md:flex",
          // Adjust the padding for floating and inset variants.
          variant === "floating" || variant === "inset"
            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r-2 group-data-[side=right]:border-l-2",
          className
        )}
        {...props}
      >
        <div
          data-sidebar="sidebar"
          data-slot="sidebar-inner"
          className="flex size-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border-2 group-data-[variant=floating]:border-sidebar-border group-data-[variant=floating]:shadow-md"
        >
          {children}
        </div>
      </div>
    </div>
  )
}

function SidebarTrigger({
  className,
  onClick,
  ...props
}: React.ComponentProps<typeof Button>) {
  const { toggleSidebar } = useSidebar()

  return (
    <Button
      data-sidebar="trigger"
      data-slot="sidebar-trigger"
      variant="ghost"
      size="icon-sm"
      className={cn(className)}
      onClick={(event) => {
        onClick?.(event)
        toggleSidebar()
      }}
      {...props}
    >
      <PanelLeftIcon className="cn-rtl-flip" />
      <span className="sr-only">Toggle Sidebar</span>
    </Button>
  )
}

function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
  const { toggleSidebar } = useSidebar()

  return (
    <button
      data-sidebar="rail"
      data-slot="sidebar-rail"
      aria-label="Toggle Sidebar"
      tabIndex={-1}
      onClick={toggleSidebar}
      title="Toggle Sidebar"
      className={cn(
        "absolute inset-y-0 z-20 hidden w-4 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] hover:after:bg-sidebar-border sm:flex ltr:-translate-x-1/2 rtl:-translate-x-1/2",
        "in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize",
        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
        "group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full hover:group-data-[collapsible=offcanvas]:bg-sidebar",
        "[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
        "[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
        className
      )}
      {...props}
    />
  )
}

function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
  return (
    <main
      data-slot="sidebar-inset"
      className={cn(
        "relative flex w-full flex-1 flex-col bg-background md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:border-2 md:peer-data-[variant=inset]:border-border md:peer-data-[variant=inset]:shadow-md md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2",
        className
      )}
      {...props}
    />
  )
}

function SidebarInput({
  className,
  ...props
}: React.ComponentProps<typeof Input>) {
  return (
    <Input
      data-slot="sidebar-input"
      data-sidebar="input"
      className={cn("h-8 w-full bg-background shadow-none", className)}
      {...props}
    />
  )
}

function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-header"
      data-sidebar="header"
      className={cn("flex flex-col gap-2 p-2", className)}
      {...props}
    />
  )
}

function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-footer"
      data-sidebar="footer"
      className={cn("flex flex-col gap-2 p-2", className)}
      {...props}
    />
  )
}

function SidebarSeparator({
  className,
  ...props
}: React.ComponentProps<typeof Separator>) {
  return (
    <Separator
      data-slot="sidebar-separator"
      data-sidebar="separator"
      className={cn("mx-2 w-auto bg-sidebar-border", className)}
      {...props}
    />
  )
}

function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-content"
      data-sidebar="content"
      className={cn(
        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
        className
      )}
      {...props}
    />
  )
}

function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-group"
      data-sidebar="group"
      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
      {...props}
    />
  )
}

function SidebarGroupLabel({
  className,
  asChild = false,
  ...props
}: React.ComponentProps<"div"> & { asChild?: boolean }) {
  const Comp = asChild ? Slot.Root : "div"

  return (
    <Comp
      data-slot="sidebar-group-label"
      data-sidebar="group-label"
      className={cn(
        "flex h-8 shrink-0 items-center rounded px-2 font-head text-xs font-semibold tracking-wider text-sidebar-foreground/70 uppercase ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
        className
      )}
      {...props}
    />
  )
}

function SidebarGroupAction({
  className,
  asChild = false,
  ...props
}: React.ComponentProps<"button"> & { asChild?: boolean }) {
  const Comp = asChild ? Slot.Root : "button"

  return (
    <Comp
      data-slot="sidebar-group-action"
      data-sidebar="group-action"
      className={cn(
        "absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded border-2 border-transparent p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
        className
      )}
      {...props}
    />
  )
}

function SidebarGroupContent({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-group-content"
      data-sidebar="group-content"
      className={cn("w-full text-sm", className)}
      {...props}
    />
  )
}

function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
  return (
    <ul
      data-slot="sidebar-menu"
      data-sidebar="menu"
      className={cn("flex w-full min-w-0 flex-col gap-0", className)}
      {...props}
    />
  )
}

function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
  return (
    <li
      data-slot="sidebar-menu-item"
      data-sidebar="menu-item"
      className={cn("group/menu-item relative", className)}
      {...props}
    />
  )
}

const sidebarMenuButtonVariants = cva(
  "peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden rounded border-2 border-transparent p-2 text-left font-head text-sm ring-sidebar-ring outline-hidden transition-[width,height,padding] group-has-data-[sidebar=menu-action]/menu-item:pr-8 group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-open:hover:bg-accent data-open:hover:text-accent-foreground data-active:border-border data-active:bg-primary data-active:font-medium data-active:text-primary-foreground data-active:shadow-md [&_svg]:size-4 [&_svg]:shrink-0 [&>span:last-child]:truncate",
  {
    variants: {
      variant: {
        default: "hover:bg-accent hover:text-accent-foreground",
        outline:
          "border-border bg-background shadow-md hover:bg-accent hover:text-accent-foreground hover:shadow-lg",
      },
      size: {
        default: "h-8 text-sm",
        sm: "h-7 text-xs",
        lg: "h-12 text-sm group-data-[collapsible=icon]:p-0!",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

function SidebarMenuButton({
  asChild = false,
  isActive = false,
  variant = "default",
  size = "default",
  tooltip,
  className,
  ...props
}: React.ComponentProps<"button"> & {
  asChild?: boolean
  isActive?: boolean
  tooltip?: string | React.ComponentProps<typeof TooltipContent>
} & VariantProps<typeof sidebarMenuButtonVariants>) {
  const Comp = asChild ? Slot.Root : "button"
  const { isMobile, state } = useSidebar()

  const button = (
    <Comp
      data-slot="sidebar-menu-button"
      data-sidebar="menu-button"
      data-size={size}
      data-active={isActive}
      className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
      {...props}
    />
  )

  if (!tooltip) {
    return button
  }

  if (typeof tooltip === "string") {
    tooltip = {
      children: tooltip,
    }
  }

  return (
    <Tooltip>
      <TooltipTrigger asChild>{button}</TooltipTrigger>
      <TooltipContent
        side="right"
        align="center"
        hidden={state !== "collapsed" || isMobile}
        {...tooltip}
      />
    </Tooltip>
  )
}

function SidebarMenuAction({
  className,
  asChild = false,
  showOnHover = false,
  ...props
}: React.ComponentProps<"button"> & {
  asChild?: boolean
  showOnHover?: boolean
}) {
  const Comp = asChild ? Slot.Root : "button"

  return (
    <Comp
      data-slot="sidebar-menu-action"
      data-sidebar="menu-action"
      className={cn(
        "absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded border-2 border-transparent p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
        showOnHover &&
          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground aria-expanded:opacity-100 md:opacity-0",
        className
      )}
      {...props}
    />
  )
}

function SidebarMenuBadge({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="sidebar-menu-badge"
      data-sidebar="menu-badge"
      className={cn(
        "pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded border-2 border-border px-1 font-head text-xs font-medium text-sidebar-foreground tabular-nums select-none group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
        className
      )}
      {...props}
    />
  )
}

function SidebarMenuSkeleton({
  className,
  showIcon = false,
  ...props
}: React.ComponentProps<"div"> & {
  showIcon?: boolean
}) {
  // Random width between 50 to 90%.
  const [width] = React.useState(() => {
    return `${Math.floor(Math.random() * 40) + 50}%`
  })

  return (
    <div
      data-slot="sidebar-menu-skeleton"
      data-sidebar="menu-skeleton"
      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
      {...props}
    >
      {showIcon && (
        <Skeleton
          className="size-4 rounded-md"
          data-sidebar="menu-skeleton-icon"
        />
      )}
      <Skeleton
        className="h-4 max-w-(--skeleton-width) flex-1"
        data-sidebar="menu-skeleton-text"
        style={
          {
            "--skeleton-width": width,
          } as React.CSSProperties
        }
      />
    </div>
  )
}

function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
  return (
    <ul
      data-slot="sidebar-menu-sub"
      data-sidebar="menu-sub"
      className={cn(
        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5 group-data-[collapsible=icon]:hidden",
        className
      )}
      {...props}
    />
  )
}

function SidebarMenuSubItem({
  className,
  ...props
}: React.ComponentProps<"li">) {
  return (
    <li
      data-slot="sidebar-menu-sub-item"
      data-sidebar="menu-sub-item"
      className={cn("group/menu-sub-item relative", className)}
      {...props}
    />
  )
}

function SidebarMenuSubButton({
  asChild = false,
  size = "md",
  isActive = false,
  className,
  ...props
}: React.ComponentProps<"a"> & {
  asChild?: boolean
  size?: "sm" | "md"
  isActive?: boolean
}) {
  const Comp = asChild ? Slot.Root : "a"

  return (
    <Comp
      data-slot="sidebar-menu-sub-button"
      data-sidebar="menu-sub-button"
      data-size={size}
      data-active={isActive}
      className={cn(
        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded border-2 border-transparent px-2 font-head text-sidebar-foreground ring-sidebar-ring outline-hidden group-data-[collapsible=icon]:hidden hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[size=md]:text-sm data-[size=sm]:text-xs data-active:border-border data-active:bg-primary data-active:text-primary-foreground data-active:shadow-md [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
        className
      )}
      {...props}
    />
  )
}

export {
  Sidebar,
  SidebarContent,
  SidebarFooter,
  SidebarGroup,
  SidebarGroupAction,
  SidebarGroupContent,
  SidebarGroupLabel,
  SidebarHeader,
  SidebarInput,
  SidebarInset,
  SidebarMenu,
  SidebarMenuAction,
  SidebarMenuBadge,
  SidebarMenuButton,
  SidebarMenuItem,
  SidebarMenuSkeleton,
  SidebarMenuSub,
  SidebarMenuSubButton,
  SidebarMenuSubItem,
  SidebarProvider,
  SidebarRail,
  SidebarSeparator,
  SidebarTrigger,
  useSidebar,
}

Usage

app/layout.tsx
import { SidebarProvider, SidebarTrigger } from "@/components/ui/sidebar"
import { AppSidebar } from "@/components/app-sidebar"
 
export default function Layout({ children }: { children: React.ReactNode }) {
  return (
    <SidebarProvider>
      <AppSidebar />
      <main>
        <SidebarTrigger />
        {children}
      </main>
    </SidebarProvider>
  )
}
components/app-sidebar.tsx
import {
  Sidebar,
  SidebarContent,
  SidebarFooter,
  SidebarGroup,
  SidebarHeader,
} from "@/components/ui/sidebar"
 
export function AppSidebar() {
  return (
    <Sidebar>
      <SidebarHeader />
      <SidebarContent>
        <SidebarGroup />
        <SidebarGroup />
      </SidebarContent>
      <SidebarFooter />
    </Sidebar>
  )
}

Composition

Use the following composition to build a Sidebar layout:

SidebarProvider
├── Sidebar
│   ├── SidebarHeader
│   ├── SidebarContent
│   │   ├── SidebarGroup
│   │   │   ├── SidebarGroupLabel
│   │   │   ├── SidebarGroupAction
│   │   │   ├── SidebarGroupContent
│   │   │   └── SidebarMenu
│   │   │       ├── SidebarMenuItem
│   │   │       │   ├── SidebarMenuButton
│   │   │       │   ├── SidebarMenuAction
│   │   │       │   └── SidebarMenuBadge
│   │   │       └── SidebarMenuItem
│   │   │           ├── SidebarMenuButton
│   │   │           └── SidebarMenuSub
│   │   │               ├── SidebarMenuSubItem
│   │   │               └── SidebarMenuSubItem
│   │   └── SidebarGroup
│   │       └── SidebarMenu
│   │           ├── SidebarMenuItem
│   │           └── SidebarMenuItem
│   ├── SidebarFooter
│   └── SidebarRail
├── SidebarInset
└── SidebarTrigger

Structure

  • SidebarProvider — Handles collapsible state and provides sidebar context to child components.
  • Sidebar — The main collapsible sidebar panel.
  • SidebarHeader — Sticky at the top; use for branding, titles, or workspace switchers.
  • SidebarFooter — Sticky at the bottom; use for user menus, settings, or actions.
  • SidebarContent — Scrollable region between the header and footer.
  • SidebarGroup — Groups related navigation with optional label, action, and content areas.
  • SidebarMenu / SidebarMenuItem — Menu structure for links, badges, actions, and nested submenus.
  • SidebarRail — Resize handle for adjusting sidebar width when applicable.
  • SidebarInset — Wraps main content when using the inset variant.
  • SidebarTrigger — Control that toggles the sidebar open or collapsed.

SidebarProvider

The SidebarProvider component is used to provide the sidebar context to the Sidebar component. You should always wrap your application in a SidebarProvider component.

Props

NameTypeDescription
defaultOpenbooleanDefault open state of the sidebar.
openbooleanOpen state of the sidebar (controlled).
onOpenChange(open: boolean) => voidSets open state of the sidebar (controlled).

Width

If you have a single sidebar in your application, you can use the SIDEBAR_WIDTH and SIDEBAR_WIDTH_MOBILE variables in sidebar.tsx to set the width of the sidebar.

components/ui/sidebar.tsx
const SIDEBAR_WIDTH = "16rem"
const SIDEBAR_WIDTH_MOBILE = "18rem"

For multiple sidebars in your application, you can use the --sidebar-width and --sidebar-width-mobile CSS variables in the style prop.

<SidebarProvider
  style={
    {
      "--sidebar-width": "20rem",
      "--sidebar-width-mobile": "20rem",
    } as React.CSSProperties
  }
>
  <Sidebar />
</SidebarProvider>

Keyboard Shortcut

To trigger the sidebar, you use the cmd+b keyboard shortcut on Mac and ctrl+b on Windows.

components/ui/sidebar.tsx
const SIDEBAR_KEYBOARD_SHORTCUT = "b"

The main Sidebar component used to render a collapsible sidebar.

Props

PropertyTypeDescription
sideleft or rightThe side of the sidebar.
variantsidebar, floating, or insetThe variant of the sidebar.
collapsibleoffcanvas, icon, or noneCollapsible state of the sidebar.
PropDescription
offcanvasA collapsible sidebar that slides in from the left or right.
iconA sidebar that collapses to icons.
noneA non-collapsible sidebar.
<SidebarProvider>
  <Sidebar variant="inset" />
  <SidebarInset>
    <main>{children}</main>
  </SidebarInset>
</SidebarProvider>

useSidebar

The useSidebar hook is used to control the sidebar.

import { useSidebar } from "@/components/ui/sidebar"
 
export function AppSidebar() {
  const {
    state,
    open,
    setOpen,
    openMobile,
    setOpenMobile,
    isMobile,
    toggleSidebar,
  } = useSidebar()
}
PropertyTypeDescription
stateexpanded or collapsedThe current state of the sidebar.
openbooleanWhether the sidebar is open.
setOpen(open: boolean) => voidSets the open state of the sidebar.
openMobilebooleanWhether the sidebar is open on mobile.
setOpenMobile(open: boolean) => voidSets the open state of the sidebar on mobile.
isMobilebooleanWhether the sidebar is on mobile.
toggleSidebar() => voidToggles the sidebar. Desktop and mobile.

SidebarHeader

Use the SidebarHeader component to add a sticky header to the sidebar.

"use client"

import { ChevronDownIcon } from "lucide-react"
components/app-sidebar.tsx
<Sidebar>
  <SidebarHeader>
    <SidebarMenu>
      <SidebarMenuItem>
        <DropdownMenu>
          <DropdownMenuTrigger
            render={
              <SidebarMenuButton className="data-open:bg-sidebar-accent data-open:text-sidebar-accent-foreground" />
            }
          >
            Select Workspace
            <ChevronDown className="ml-auto" />
          </DropdownMenuTrigger>
          <DropdownMenuContent className="w-(--radix-popper-anchor-width)">
            <DropdownMenuItem>
              <span>Acme Inc</span>
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>
      </SidebarMenuItem>
    </SidebarMenu>
  </SidebarHeader>
</Sidebar>

SidebarFooter

Use the SidebarFooter component to add a sticky footer to the sidebar.

<Sidebar>
  <SidebarFooter>
    <SidebarMenu>
      <SidebarMenuItem>
        <SidebarMenuButton>
          <User2 /> Username
        </SidebarMenuButton>
      </SidebarMenuItem>
    </SidebarMenu>
  </SidebarFooter>
</Sidebar>

SidebarContent

The SidebarContent component is used to wrap the content of the sidebar. This is where you add your SidebarGroup components. It is scrollable.

<Sidebar>
  <SidebarContent>
    <SidebarGroup />
    <SidebarGroup />
  </SidebarContent>
</Sidebar>

SidebarGroup

Use the SidebarGroup component to create a section within the sidebar.

A SidebarGroup has a SidebarGroupLabel, a SidebarGroupContent and an optional SidebarGroupAction.

"use client"

import { LifeBuoyIcon, SendIcon } from "lucide-react"
<SidebarGroup>
  <SidebarGroupLabel>Application</SidebarGroupLabel>
  <SidebarGroupAction>
    <Plus /> <span className="sr-only">Add Project</span>
  </SidebarGroupAction>
  <SidebarGroupContent></SidebarGroupContent>
</SidebarGroup>

To make a SidebarGroup collapsible, wrap it in a Collapsible.

<Collapsible defaultOpen className="group/collapsible">
  <SidebarGroup>
    <SidebarGroupLabel render={<CollapsibleTrigger />}>
      Help
      <ChevronDown className="ml-auto transition-transform group-data-[state=open]/collapsible:rotate-180" />
    </SidebarGroupLabel>
    <CollapsibleContent>
      <SidebarGroupContent />
    </CollapsibleContent>
  </SidebarGroup>
</Collapsible>

SidebarMenu

The SidebarMenu component is used for building a menu within a SidebarGroup.

"use client"

import {
<SidebarMenu>
  {projects.map((project) => (
    <SidebarMenuItem key={project.name}>
      <SidebarMenuButton render={<a href={project.url} />}>
        <project.icon />
        <span>{project.name}</span>
      </SidebarMenuButton>
    </SidebarMenuItem>
  ))}
</SidebarMenu>

SidebarMenuButton

The SidebarMenuButton component is used to render a menu button within a SidebarMenuItem.

By default, the SidebarMenuButton renders a <button>. Use the render prop to compose a different element such as a Link or an a tag (Base UI). On Radix, the equivalent is asChild. On React Aria, pass href to render a link.

Use the isActive prop to mark a menu item as active.

<SidebarMenuButton render={<a href="#" />} isActive>
  Home
</SidebarMenuButton>

SidebarMenuAction

The SidebarMenuAction component is used to render a menu action within a SidebarMenuItem.

<SidebarMenuItem>
  <SidebarMenuButton render={<a href="#" />}>
    <Home />
    <span>Home</span>
  </SidebarMenuButton>
  <SidebarMenuAction>
    <Plus /> <span className="sr-only">Add Project</span>
  </SidebarMenuAction>
</SidebarMenuItem>

SidebarMenuSub

The SidebarMenuSub component is used to render a submenu within a SidebarMenu.

<SidebarMenuItem>
  <SidebarMenuButton />
  <SidebarMenuSub>
    <SidebarMenuSubItem>
      <SidebarMenuSubButton />
    </SidebarMenuSubItem>
  </SidebarMenuSub>
</SidebarMenuItem>

SidebarMenuBadge

The SidebarMenuBadge component is used to render a badge within a SidebarMenuItem.

<SidebarMenuItem>
  <SidebarMenuButton />
  <SidebarMenuBadge>24</SidebarMenuBadge>
</SidebarMenuItem>

SidebarMenuSkeleton

The SidebarMenuSkeleton component is used to render a skeleton for a SidebarMenu.

<SidebarMenu>
  {Array.from({ length: 5 }).map((_, index) => (
    <SidebarMenuItem key={index}>
      <SidebarMenuSkeleton />
    </SidebarMenuItem>
  ))}
</SidebarMenu>

SidebarTrigger

Use the SidebarTrigger component to render a button that toggles the sidebar.

import { useSidebar } from "@/components/ui/sidebar"
 
export function CustomTrigger() {
  const { toggleSidebar } = useSidebar()
 
  return <button onClick={toggleSidebar}>Toggle Sidebar</button>
}

SidebarRail

The SidebarRail component is used to render a rail within a Sidebar. This rail can be used to toggle the sidebar.

<Sidebar>
  <SidebarHeader />
  <SidebarContent>
    <SidebarGroup />
  </SidebarContent>
  <SidebarFooter />
  <SidebarRail />
</Sidebar>

Controlled Sidebar

Use the open and onOpenChange props to control the sidebar.

"use client"

import * as React from "react"
export function AppSidebar() {
  const [open, setOpen] = React.useState(false)
 
  return (
    <SidebarProvider open={open} onOpenChange={setOpen}>
      <Sidebar />
    </SidebarProvider>
  )
}

Theming

Sidebar colors follow the active Neobrutalism theme via CSS variables:

--sidebar
--sidebar-foreground
--sidebar-primary
--sidebar-primary-foreground
--sidebar-accent
--sidebar-accent-foreground
--sidebar-border
--sidebar-ring

These are already wired in globals.css to your theme tokens (background, primary, accent, border, ring).

Styling

Here are some tips for styling the sidebar based on different states.

<Sidebar collapsible="icon">
  <SidebarContent>
    <SidebarGroup className="group-data-[collapsible=icon]:hidden" />
  </SidebarContent>
</Sidebar>
<SidebarMenuItem>
  <SidebarMenuButton />
  <SidebarMenuAction className="peer-data-active/menu-button:opacity-100" />
</SidebarMenuItem>

RTL

To enable RTL support in Neobrutalism.com, see the RTL configuration guide.

"use client"

import * as React from "react"

Accessibility

There is no single WAI-ARIA pattern for an app sidebar — the menu is plain buttons and links navigated with Tab, not an ARIA menu, so no arrow-key roving applies. On mobile the sidebar renders inside a Sheet, a modal dialog per the WAI-ARIA Dialog (Modal) pattern: focus is trapped, Escape closes it, and a visually hidden title and description announce it to screen readers. SidebarTrigger ships with aria-label="Toggle Sidebar"; icon-only controls like SidebarGroupAction and SidebarMenuAction need their own sr-only labels — the examples above include them.

Keyboard interactions:

KeyAction
Cmd + B / Ctrl + BToggle the sidebar (change via SIDEBAR_KEYBOARD_SHORTCUT)
Tab / Shift + TabMove focus through the trigger, menu buttons, and actions
Enter / SpaceActivate the focused menu button or action
EscapeClose the mobile sidebar (modal Sheet)

Backend APIs

Composition APIs differ by registry backend:

BackendPolymorphic menu / triggers
Base UIrender={<a href="..." />} (and render on triggers)
RadixasChild + single child element
React Ariapass href on SidebarMenuButton / SidebarMenuSubButton

Live previews on this page always run the Base UI demos. Switch Base / Radix / Aria in the docs toolbar to change install commands and View Code source.