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.

Combobox API

View component

The full prop reference for the Combobox component. An autocomplete input with a filtered list of options.

Import

tsx

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

Props

Root

Container/context provider for the combobox. Manages state for open, value, and input value.

Prop	Type	Default
children#	`React.ReactNode` Child elements (Input, Content, etc.)	—
value#	`string` Controlled value of the selected item	—
defaultValue#	`string` Initial value when uncontrolled	—
onValueChange#	`(value: string) => void` Callback when selected value changes	—
inputValue#	`string` Controlled input field text	—
defaultInputValue#	`string` Initial input text when uncontrolled	''
onInputValueChange#	`(value: string) => void` Callback when input text changes	—
open#	`boolean` Controlled open state of dropdown	—
defaultOpen#	`boolean` Initial open state when uncontrolled	false
onOpenChange#	`(open: boolean) => void` Callback when dropdown open state changes	—
dir#	`'ltr' \| 'rtl'` Text direction for the combobox	—
disabled#	`boolean` Whether the combobox is disabled	—

Input

The searchable input field. Extends HTML input element with keyboard navigation (arrow keys, enter, escape).

Prop	Type	Default
asChild#	`boolean` Render as child; prop forwarding pattern	—
className#	`string` CSS classes (styled version provides default styling)	—
...htmlInputAttributes#	`React.ComponentPropsWithoutRef<'input'>` All standard HTML input attributes (placeholder, type, onChange, onFocus, onKeyDown, etc.)	—

Portal

Portals the dropdown content to avoid overflow issues. Wraps Content.

Prop	Type	Default
children#	`React.ReactNode` Child elements, typically Content	—
container#	`Element \| DocumentFragment \| null` DOM element to portal into; defaults to document.body	—
forceMount#	`boolean` Force render content even when dropdown is closed	—

Content

Dropdown container for items. Positioned via Popper, responds to open state.

Prop	Type	Default
asChild#	`boolean` Render as child; prop forwarding pattern	—
forceMount#	`boolean` Force render content even when dropdown is closed	—
side#	`'top' \| 'right' \| 'bottom' \| 'left'` Preferred side to position dropdown relative to input	'bottom'
sideOffset#	`number` Distance in pixels between input and dropdown	4
align#	`'start' \| 'center' \| 'end'` Horizontal alignment of dropdown	'start'
avoidCollisions#	`boolean` Flip/shift dropdown to avoid viewport collisions	true
onEscapeKeyDown#	`(event: KeyboardEvent) => void` Callback when escape key pressed	—
className#	`string` CSS classes (styled version provides default styling)	—
...htmlDivAttributes#	`React.ComponentPropsWithoutRef<'div'>` All standard HTML div attributes	—

Item

Individual selectable option in the dropdown. Highlighted on hover/keyboard navigation, selected via click or enter.

Prop	Type	Default
value#	`string` Unique identifier for this option (required)	—
disabled#	`boolean` Whether this item is selectable	—
textValue#	`string` Text to set as input value when selected (defaults to value prop)	—
asChild#	`boolean` Render as child; prop forwarding pattern	—
className#	`string` CSS classes (styled version provides default styling with checkmark icon)	—
children#	`React.ReactNode` Label/content to display for the item	—
...htmlDivAttributes#	`React.ComponentPropsWithoutRef<'div'>` All standard HTML div attributes	—

Empty

Shown when there are no items to display (e.g., no search results).

Prop	Type	Default
children#	`React.ReactNode` Content to display when no items available	—
className#	`string` CSS classes (styled version provides default styling)	—
...htmlDivAttributes#	`React.ComponentPropsWithoutRef<'div'>` All standard HTML div attributes	—

Group

Semantic grouping container for related items (e.g., frontend vs backend languages).

Prop	Type	Default
asChild#	`boolean` Render as child; prop forwarding pattern	—
children#	`React.ReactNode` Item elements to group	—
...htmlDivAttributes#	`React.ComponentPropsWithoutRef<'div'>` All standard HTML div attributes	—

Separator

Visual divider between groups or sections in the dropdown.

Prop	Type	Default
asChild#	`boolean` Render as child; prop forwarding pattern	—
...htmlDivAttributes#	`React.ComponentPropsWithoutRef<'div'>` All standard HTML div attributes (className, style, etc.)	—

Source code

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