structyl is an open-source, TypeScript-first React component library with 90+ accessible components. It combines WAI-ARIA compliant headless primitives with Tailwind CSS v4 styled wrappers, a runtime theming system, and a first-class DataTable — all in independently-versioned npm packages.

How does structyl differ from shadcn/ui?

structyl ships as actual npm packages (pnpm add @structyl/styled) rather than copy-paste code snippets. It adds a runtime theming system that switches themes without a page reload, a feature-complete DataTable, 24+ React hooks, and 90+ components — significantly more than shadcn/ui out of the box.

How does structyl compare to Radix UI?

structyl builds on the same headless-first philosophy as Radix UI but adds a complete Tailwind-styled layer, runtime theming with CSS variables, dark mode, a DataTable, and chart components. Radix is primitives-only; structyl is a full component library ready to use.

Is structyl compatible with Next.js App Router?

Yes. All structyl components that use React hooks are marked with 'use client'. The library is SSR-safe and fully compatible with Next.js 15 App Router and React Server Components.

Does structyl support dark mode?

Yes. structyl includes a ThemeProvider that supports system, light, and dark modes. Theme switches happen instantly using CSS custom properties — no page reload required and no flash of unstyled content.

How do I install structyl?

Install the main package with: pnpm add @structyl/styled (or npm install @structyl/styled). Then wrap your app in ThemeProvider from @structyl/themes and add Toaster from @structyl/styled to your root layout.

Is structyl free and open source?

Yes. structyl is MIT licensed and completely free. All packages are published to npm under the @structyl scope.

Does structyl support TypeScript?

Yes. structyl is built with TypeScript strict mode throughout. All components export their prop types and the library ships with full type definitions. There is no any usage in the public API.

What styling system does structyl use?

structyl uses Tailwind CSS v4 for styling, tailwind-variants for type-safe variant APIs, and tailwind-merge for class conflict resolution. All colors and design tokens are CSS custom properties that integrate with the runtime theming system.

Does structyl have a DataTable component?

Yes. structyl includes a first-class DataTable in the @structyl/data-table package, built on @tanstack/table-core. It supports sorting, multi-column filtering, pagination, row selection, column resizing, and row virtualization via @tanstack/react-virtual.

Dropdown Menu API

View component

The full prop reference for the Dropdown Menu component. Displays a menu to the user — such as a set of actions or functions — triggered by a button.

Import

tsx

import { DropdownMenu } from '@structyl/styled';

Props

Root

Root container that manages dropdown menu state, dir, and modal behavior

Prop	Type	Default
children#	`React.ReactNode` Child elements (Trigger, Content, etc.)	—
open#	`boolean` Controlled open state	—
defaultOpen#	`boolean` Initial open state when uncontrolled	false
onOpenChange#	`(open: boolean) => void` Callback when open state changes	—
dir#	`'ltr' \| 'rtl'` Text direction	—
modal#	`boolean` Whether to disable pointer events outside and trap focus	true

Trigger

Button that toggles the dropdown menu; extends native button with aria attributes

Prop	Type	Default
asChild#	`boolean` Render as child element, passing through props	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLButtonElement>` Forward ref to button element	—
...buttonProps#	`React.ComponentPropsWithoutRef<'button'>` All standard HTML button attributes and event handlers	—

Content

Dropdown menu content portal with positioning, animation, and focus management

Prop	Type	Default
container#	`Element \| DocumentFragment \| null` Portal container; defaults to document.body	—
sideOffset#	`number` Offset from trigger button	6
side#	`'top' \| 'right' \| 'bottom' \| 'left'` Preferred side to display content	—
align#	`'start' \| 'center' \| 'end'` Alignment relative to trigger	—
alignOffset#	`number` Offset from alignment edge	—
avoidCollisions#	`boolean` Automatically flip side/align to avoid viewport collisions	—
collisionBoundary#	`Element \| Element[] \| null` Elements to consider as collision boundaries	—
collisionPadding#	`number` Padding from collision boundaries	—
strategy#	`'fixed' \| 'absolute'` Positioning strategy	—
sticky#	`'partial' \| 'always'` Whether content sticks to trigger during scroll	—
hideWhenDetached#	`boolean` Hide when trigger no longer visible	—
updatePositionStrategy#	`'always' \| 'optimized'` Position update frequency	—
loop#	`boolean` Enable keyboard focus looping	false
forceMount#	`boolean` Force mount content even when closed	—
onCloseAutoFocus#	`(event: Event) => void` Callback when auto-focusing on close; returns focus to trigger by default	—
onEscapeKeyDown#	`(event: KeyboardEvent) => void` Callback when escape key is pressed	—
onPointerDownOutside#	`(event: PointerDownOutsideEvent) => void` Callback for pointer down outside content	—
onFocusOutside#	`(event: FocusOutsideEvent) => void` Callback for focus moving outside content	—
onInteractOutside#	`(event: PointerDownOutsideEvent \| FocusOutsideEvent) => void` Callback for any interaction outside content	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to content div	—

Item

Menu item with optional inset padding; supports disabled state and select callback

Prop	Type	Default
inset#	`boolean` Add left padding for visual inset	—
disabled#	`boolean` Disable item interaction	—
onSelect#	`(event: Event) => void` Callback when item is selected (click or enter)	—
textValue#	`string` Text content for typeahead search	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to item div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes and event handlers	—

CheckboxItem

Menu item with checkbox indicator; toggles checked state on select

Prop	Type	Default
checked#	`boolean \| 'indeterminate'` Checkbox state	—
onCheckedChange#	`(checked: boolean) => void` Callback when checked state changes	—
disabled#	`boolean` Disable item interaction	—
onSelect#	`(event: Event) => void` Callback when item is selected	—
textValue#	`string` Text content for typeahead search	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to item div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes and event handlers	—

RadioGroup

Container for radio items that manages exclusive selection

Prop	Type	Default
value#	`string` Currently selected radio item value	—
onValueChange#	`(value: string) => void` Callback when selected value changes	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to group div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes	—

RadioItem

Radio item within RadioGroup; selects its value when clicked

Prop	Type	Default
value#	`string` Value to select when this item is chosen (required)	—
disabled#	`boolean` Disable item interaction	—
onSelect#	`(event: Event) => void` Callback when item is selected	—
textValue#	`string` Text content for typeahead search	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to item div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes and event handlers	—

Group

Semantic grouping container for menu items

Prop	Type	Default
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to group div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes	—

Label

Non-interactive label for menu sections; supports optional inset padding

Prop	Type	Default
inset#	`boolean` Add left padding for visual inset	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to label div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes	—

Separator

Visual divider between menu sections

Prop	Type	Default
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to separator div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes	—

Shortcut

Display keyboard shortcut hint text (e.g. '⌘S'); styled as optional child content

Prop	Type	Default
className#	`string` CSS class name	—
...spanProps#	`React.HTMLAttributes<HTMLSpanElement>` Standard HTML span attributes	—

Sub

Container for nested submenu with independent open/close state

Prop	Type	Default
children#	`React.ReactNode` Child elements (SubTrigger, SubContent)	—
open#	`boolean` Controlled open state	—
defaultOpen#	`boolean` Initial open state when uncontrolled	—
onOpenChange#	`(open: boolean) => void` Callback when submenu open state changes	—

SubTrigger

Item that toggles a submenu; displays chevron icon; supports inset padding

Prop	Type	Default
inset#	`boolean` Add left padding for visual inset	—
disabled#	`boolean` Disable item interaction	—
onSelect#	`(event: Event) => void` Callback when item is selected	—
textValue#	`string` Text content for typeahead search	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to trigger div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes and event handlers	—

SubContent

Submenu content portal; positioned adjacent to SubTrigger

Prop	Type	Default
forceMount#	`boolean` Force mount content even when closed	—
loop#	`boolean` Enable keyboard focus looping	false
onCloseAutoFocus#	`(event: Event) => void` Callback when auto-focusing on close	—
onEscapeKeyDown#	`(event: KeyboardEvent) => void` Callback when escape key is pressed; closes root menu	—
onPointerDownOutside#	`(event: PointerDownOutsideEvent) => void` Callback for pointer down outside content	—
onFocusOutside#	`(event: FocusOutsideEvent) => void` Callback for focus moving outside content; closes submenu if target is not trigger	—
onInteractOutside#	`(event: PointerDownOutsideEvent \| FocusOutsideEvent) => void` Callback for any interaction outside content	—
sideOffset#	`number` Offset from trigger	—
alignOffset#	`number` Offset from alignment edge	—
avoidCollisions#	`boolean` Automatically flip side/align to avoid viewport collisions	—
collisionBoundary#	`Element \| Element[] \| null` Elements to consider as collision boundaries	—
collisionPadding#	`number` Padding from collision boundaries	—
strategy#	`'fixed' \| 'absolute'` Positioning strategy	—
sticky#	`'partial' \| 'always'` Whether content sticks to trigger during scroll	—
hideWhenDetached#	`boolean` Hide when trigger no longer visible	—
updatePositionStrategy#	`'always' \| 'optimized'` Position update frequency	—
className#	`string` CSS class name	—
ref#	`React.ForwardedRef<HTMLDivElement>` Forward ref to content div	—
...divProps#	`React.ComponentPropsWithoutRef<'div'>` Standard HTML div attributes and event handlers (side and align are fixed to 'right'/'start' and 'left'/'start' for RTL)	—

Portal

Portal container for rendering Content outside React tree; exported for advanced use

Prop	Type	Default
children#	`React.ReactNode` Portal content	—
container#	`Element \| DocumentFragment \| null` Portal target container; defaults to document.body	—
forceMount#	`boolean` Force mount portal regardless of open state	—

Keyboard interactions

Adheres to the WAI-ARIA design pattern .

Key	Description
`Space / Enter`	Opens the menu and focuses the first item.
`ArrowDown / ArrowUp`	Moves focus between items.
`ArrowRight / ArrowLeft`	Opens / closes a submenu.
`Esc`	Closes the menu and returns focus to the trigger.

Source code

If you didn't find what you need here, read the component implementation .