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.

Resources

Design tokens

All design tokens are CSS custom properties injected by ThemeProvider. They automatically update when the theme or color mode changes.

Usage

Tokens are available as CSS custom properties and as Tailwind utility classes through the preset.

css / tailwind

/* CSS custom property */
background: hsl(var(--color-primary));

/* Tailwind class */
<div className="bg-primary text-primary-fg" />

Background & Foreground

Base surface and text colors for the page.

Swatch	Token	Tailwind	Description
	`--color-bg`	bg-bg / text-bg	Page background
	`--color-fg`	bg-fg / text-fg	Primary text color

Card

Surface colors for card-like containers.

Swatch	Token	Tailwind	Description
	`--color-card`	bg-card	Card background
	`--color-card-fg`	text-card-fg	Card text color

Popover

Colors for floating elements like dropdowns and tooltips.

Swatch	Token	Tailwind	Description
	`--color-popover`	bg-popover	Popover background
	`--color-popover-fg`	text-popover-fg	Popover text

Primary

Main brand color used for buttons, links, and interactive focus rings.

Token	Tailwind	Description
`--color-primary`	bg-primary	Primary action color
`--color-primary-fg`	text-primary-fg	Text on primary
`--color-primary-hover`	bg-primary-hover	Hovered primary
`--color-primary-active`	bg-primary-active	Pressed primary

Secondary

Subdued variant for secondary actions.

Swatch	Token	Tailwind	Description
	`--color-secondary`	bg-secondary	Secondary background
	`--color-secondary-fg`	text-secondary-fg	Secondary text

Muted

Low-contrast surfaces and placeholder text.

Swatch	Token	Tailwind	Description
	`--color-muted`	bg-muted	Muted background
	`--color-muted-fg`	text-muted-foreground	Muted / dimmed text

Accent

Hover and selection highlight.

Swatch	Token	Tailwind	Description
	`--color-accent`	bg-accent	Hover highlight
	`--color-accent-fg`	text-accent-foreground	Text on accent

Semantic

Status colors for feedback states.

Token	Tailwind	Description
`--color-destructive`	bg-destructive	Error / danger
`--color-destructive-fg`	text-destructive-fg	Text on destructive
`--color-success`	bg-success / text-success	Success state
`--color-success-fg`	text-success-fg	Text on success
`--color-warning`	bg-warning / text-warning	Warning state
`--color-warning-fg`	text-warning-fg	Text on warning
`--color-info`	bg-info / text-info	Info state
`--color-info-fg`	text-info-fg	Text on info

Border & Input

Stroke and input field colors.

Token	Tailwind	Description
`--color-border`	border-border	Default border
`--color-border-strong`	border-border-strong	Emphasized border
`--color-input`	border-input	Input border
`--color-ring`	ring-ring	Focus ring

Themes change token values

Switching between themes (slate, zinc, rose) or modes (light, dark) replaces all token values simultaneously. Your components automatically adapt — no class swapping needed.

slatezincrose