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.

Chart API

View component

The full prop reference for the Chart component. A comprehensive custom SVG chart library with 45+ components — bar, line, area, pie/donut, scatter, bubble, radar, heatmap, treemap, funnel, gauge, candlestick, radial bar, radial line, sankey, waterfall, gantt, boxplot, sunburst, chord, histogram, and more. No external charting dependency.

Import

tsx

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

Props

Chart.Root

Cartesian chart container. Compose Bar, Line, Area, Scatter and Bubble inside.

Prop	Type	Default
data#	`Record<string, unknown>[]` Array of data objects.	—
height#	`number` SVG height in pixels.	300
width#	`number` SVG width. Omit for responsive layout.	—
margin#	`{ top, right, bottom, left }` Inner margin for axes.	{ top:10, right:10, bottom:30, left:40 }
accessibilityLabel#	`string` Sets aria-label on the SVG.	—
accessibilityMode#	`boolean` Enables pattern fills for colorblind accessibility.	false

Chart.Bar

Vertical (or horizontal) bar series inside Chart.Root.

Prop	Type	Default
dataKey#	`string` Required. Field name in data.	—
name#	`string` Display name in legend and tooltip.	—
color#	`string` Override color.	—
stackId#	`string` Bars with the same stackId are stacked.	—
radius#	`number` Corner radius.	2
orientation#	`'vertical' \| 'horizontal'` Bar direction.	'vertical'

Chart.Line

Line series inside Chart.Root.

Prop	Type	Default
dataKey#	`string` Required. Field name in data.	—
name#	`string` Display name.	—
color#	`string` Override color.	—
curve#	`'linear' \| 'catmullRom' \| 'step'` Line interpolation.	'linear'
dot#	`boolean` Show data point dots.	true
strokeWidth#	`number` Line stroke width.	2

Chart.Area

Filled area series inside Chart.Root. Accepts all Chart.Line props plus fillOpacity and stackId.

Prop	Type	Default
dataKey#	`string` Required. Field name in data.	—
fillOpacity#	`number` Fill transparency (0–1).	0.2
stackId#	`string` Areas with the same stackId are stacked.	—

Chart.Pie / Chart.PieRoot

Pie or donut chart. Wrap Chart.Pie in Chart.PieRoot.

Prop	Type	Default
dataKey#	`string` Required. Numeric value field.	—
nameKey#	`string` Label field for segments.	—
innerRadius#	`number` Inner radius (> 0 = donut).	0
padAngle#	`number` Gap between segments in radians.	—
cornerRadius#	`number` Rounded segment corners.	—
colors#	`string[]` Per-segment color overrides.	—

Chart.Radar / Chart.RadarRoot

Radar/spider chart. Wrap Chart.Radar(s) in Chart.RadarRoot.

Prop	Type	Default
dataKey#	`string` Required. Numeric value field to plot.	—
name#	`string` Display name.	—
color#	`string` Override color.	—
fillOpacity#	`number` Fill transparency.	0.25

Chart.Heatmap

Standalone heatmap grid. xKey, yKey and valueKey map data fields to cells.

Prop	Type	Default
data#	`Record<string, unknown>[]` Required.	—
xKey#	`string` Required. Horizontal axis field.	—
yKey#	`string` Required. Vertical axis field.	—
valueKey#	`string` Required. Numeric intensity field.	—
width#	`number` SVG width.	500
height#	`number` SVG height.	280

Chart.Treemap

Standalone treemap using the squarify algorithm. Supports nested children.

Prop	Type	Default
data#	`TreemapNode[]` Required. Hierarchical data with name, value and optional children.	—
width#	`number` SVG width.	500
height#	`number` SVG height.	350

Chart.Funnel

Standalone funnel chart rendered top-down.

Prop	Type	Default
data#	`{ name: string; value: number }[]` Required. Stages in descending order.	—
width#	`number` SVG width.	400
height#	`number` SVG height.	300

Chart.Gauge

Standalone half-circle arc gauge.

Prop	Type	Default
value#	`number` Required. Current value.	—
min#	`number` Minimum value.	0
max#	`number` Maximum value.	100
width#	`number` SVG width.	240
height#	`number` SVG height.	180
label#	`string` Text shown in center of arc.	—

Chart.Candlestick

Standalone OHLC candlestick chart.

Prop	Type	Default
data#	`OhlcEntry[]` Required. Objects with open, high, low, close.	—
width#	`number` SVG width.	600
height#	`number` SVG height.	300
bullColor#	`string` Color for bullish (close > open) candles.	hsl(var(--chart-2))
bearColor#	`string` Color for bearish (close < open) candles.	hsl(var(--chart-5))

Source code

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