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.

Command API

View component

The full prop reference for the Command component. A command palette with fuzzy search, cmdk-style.

Import

tsx

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

Props

Root

Root command container that manages state and provides context for all command subcomponents

Prop	Type	Default
value#	`string` Controlled selected item value	—
defaultValue#	`string` Default selected item value when uncontrolled	—
onValueChange#	`(value: string) => void` Callback fired when selected value changes	—
filter#	`(value: string, search: string, keywords?: string[]) => number` Custom filter function that scores items for search; defaults to prefix/include matching	—
shouldFilter#	`boolean` Whether to apply filtering based on search input	true
label#	`string` Aria-label for the root element	'Command Menu'
loop#	`boolean` Whether arrow navigation loops from last to first item and vice versa	false
asChild#	`boolean` Render as child element, merging props with child component	—
className#	`string` CSS class name (styled version adds default popover styling)	—
ref#	`React.Ref<HTMLDivElement>` Ref to the root div element	—

Input

Search/filter input field that updates the command's search state

Prop	Type	Default
className#	`string` CSS class name (styled version wraps input with search icon)	—
asChild#	`boolean` Render as child element, merging props with child component	—
value#	`string` Controlled input value	—
onChange#	`(event: React.ChangeEvent<HTMLInputElement>) => void` Callback when input value changes	—
placeholder#	`string` Input placeholder text	—
ref#	`React.Ref<HTMLInputElement>` Ref to the input element	—

List

Container for command items and groups; scrollable container with role listbox

Prop	Type	Default
className#	`string` CSS class name (styled version adds max-height and scroll behavior)	—
asChild#	`boolean` Render as child element, merging props with child component	—
aria-label#	`string` Aria-label for the list	'Command results'
ref#	`React.Ref<HTMLDivElement>` Ref to the list div element	—

Item

Selectable command item within a list or group

Prop	Type	Default
value#	`string` Item value; falls back to textContent if not provided	—
keywords#	`string[]` Additional keywords for search matching beyond the item text	—
disabled#	`boolean` Prevents selection and interaction with the item	—
onSelect#	`(value: string) => void` Callback fired when item is clicked or selected via keyboard	—
className#	`string` CSS class name (styled version adds selection and disabled styling)	—
asChild#	`boolean` Render as child element, merging props with child component	—
ref#	`React.Ref<HTMLDivElement>` Ref to the item div element	—

Group

Logical grouping of command items with optional heading

Prop	Type	Default
heading#	`React.ReactNode` Section heading displayed above items in the group	—
className#	`string` CSS class name (styled version adds padding and heading styles)	—
asChild#	`boolean` Render as child element, merging props with child component	—
ref#	`React.Ref<HTMLDivElement>` Ref to the group div element	—

Empty

Placeholder content shown when no items match the search query

Prop	Type	Default
className#	`string` CSS class name (styled version adds padding and text centering)	—
ref#	`React.Ref<HTMLDivElement>` Ref to the empty state div element	—

Separator

Visual divider between command groups or sections

Prop	Type	Default
className#	`string` CSS class name (styled version adds border styling)	—
asChild#	`boolean` Render as child element, merging props with child component	—
ref#	`React.Ref<HTMLDivElement>` Ref to the separator div element	—

Loading

Loading indicator displayed during async operations

Prop	Type	Default
progress#	`number` Progress value (0-100) for aria-valuenow	—
className#	`string` CSS class name	—
ref#	`React.Ref<HTMLDivElement>` Ref to the loading div element	—

Shortcut

Keyboard shortcut hint displayed in command items (styled version only)

Prop	Type	Default
className#	`string` CSS class name (styled version adds muted text styling and right alignment)	—

Source code

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