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.

Scroll Area API

View component

The full prop reference for the Scroll Area component. A container with custom, themeable scrollbars.

Import

tsx

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

Props

Root

The root container for the scroll area. Wraps the viewport and scrollbars. Supports all standard div props.

Prop	Type	Default
asChild#	`boolean` Render as a child element instead of a div	—
type#	`'auto' \| 'always' \| 'scroll' \| 'hover'` Scrollbar visibility behavior: auto (visible on hover), always (always visible), scroll (visible during scroll), or hover (visible on pointer enter)	'hover'
scrollHideDelay#	`number` Delay in milliseconds before hiding the scrollbar when using type='scroll' or type='hover'	600
className#	`string` CSS class name for styling (styled version adds 'relative overflow-hidden')	—
children#	`React.ReactNode` Content to scroll (primitives use as Viewport children; styled version accepts content directly)	—
style#	`React.CSSProperties` Inline styles (merged with position: 'relative')	—
ref#	`React.Ref<HTMLDivElement>` Forwarded ref to the root div element	—

Viewport

The scrollable container (primitives only). In styled version, this is pre-configured inside Root.

Prop	Type	Default
tabIndex#	`number` Tab index for keyboard navigation (defaults to 0)	0
className#	`string` CSS class name for styling (styled version pre-applies 'h-full w-full rounded-[inherit]')	—
style#	`React.CSSProperties` Inline styles (merged with overflow: 'auto' and WebkitOverflowScrolling: 'touch')	—
children#	`React.ReactNode` Content to be scrolled	—
ref#	`React.Ref<HTMLDivElement>` Forwarded ref to the viewport div element	—

Scrollbar

The scrollbar track container. Manages visibility and orientation.

Prop	Type	Default
orientation#	`'horizontal' \| 'vertical'` Scrollbar orientation (vertical for up-down scrolling, horizontal for left-right scrolling)	'vertical'
forceMount#	`boolean` Force the scrollbar to mount and be visible regardless of type or scroll state	—
className#	`string` CSS class name for styling (styled version pre-applies flex, touch-none, select-none, transition-colors, and orientation-specific classes)	—
style#	`React.CSSProperties` Inline styles (merged with position: 'absolute' and orientation-specific positioning)	—
ref#	`React.Ref<HTMLDivElement>` Forwarded ref to the scrollbar div element	—

Thumb

The draggable thumb element (handle) on the scrollbar. Automatically sizes and positions based on scroll ratio.

Prop	Type	Default
className#	`string` CSS class name for styling (styled version pre-applies 'relative flex-1 rounded-full bg-border')	—
style#	`React.CSSProperties` Inline styles (merged with computed width, height, and translate transform)	—
ref#	`React.Ref<HTMLDivElement>` Forwarded ref to the thumb div element	—

Corner

The corner element displayed where horizontal and vertical scrollbars meet (primitives only, not exposed in styled).

Prop	Type	Default
className#	`string` CSS class name for styling	—
style#	`React.CSSProperties` Inline styles	—
ref#	`React.Ref<HTMLDivElement>` Forwarded ref to the corner div element	—

Source code

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