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.

Navigation Menu API

View component

The full prop reference for the Navigation Menu component. A collection of links for navigating a website.

Import

tsx

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

Props

Root

Root container for the navigation menu system. Manages state, timing, and direction. Accepts nav element props.

Prop	Type	Default
value#	`string` Controlled active menu item value	—
defaultValue#	`string` Initial active menu item value (uncontrolled)	—
onValueChange#	`(value: string) => void` Callback when the active menu item changes	—
delayDuration#	`number` Delay in ms before opening submenu on hover when first trigger is activated	200
skipDelayDuration#	`number` Delay in ms before resuming open delay after all menus close	300
dir#	`'ltr' \| 'rtl'` Text direction (left-to-right or right-to-left)	—
orientation#	`'horizontal' \| 'vertical'` Layout direction of menu items	'horizontal'
asChild#	`boolean` Render as child element instead of nav	—
className#	`string` CSS class name	—

List

Container for navigation menu items. Accepts ul element props.

Prop	Type	Default
className#	`string` CSS class name	—

Item

Container for a menu item (trigger + content pair). Accepts li element props.

Prop	Type	Default
value#	`string` Unique identifier for this menu item (auto-generated if not provided)	—
asChild#	`boolean` Render as child element instead of li	—
className#	`string` CSS class name	—

Trigger

Button that opens/closes the menu content. Accepts button element props.

Prop	Type	Default
asChild#	`boolean` Render as child element instead of button	—
className#	`string` CSS class name	—

Content

Container for menu item content shown when trigger is active. Accepts div element props.

Prop	Type	Default
forceMount#	`boolean` Force mounting content in DOM even when closed	—
asChild#	`boolean` Render as child element instead of div	—
className#	`string` CSS class name	—

Link

Anchor link element within navigation menu. Supports active state styling.

Prop	Type	Default
active#	`boolean` Mark link as currently active/selected	—
asChild#	`boolean` Render as child element instead of a	—
className#	`string` CSS class name	—

Indicator

Visual indicator element (typically animated arrow/chevron). Accepts div element props.

Prop	Type	Default
forceMount#	`boolean` Force mounting indicator in DOM even when hidden	—
className#	`string` CSS class name	—

Viewport

Viewport container that constrains content size and position. Accepts div element props.

Prop	Type	Default
forceMount#	`boolean` Force mounting viewport in DOM even when closed	—
className#	`string` CSS class name	—

Source code

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