Storybook Has a Free UI Development Environment — Build and Test Components in Isolation

Why Storybook? Storybook lets you develop UI components in isolation — outside your app. Each component gets a "story" showing its states. Perfect for design systems. npx storybook@latest init npm run storybook Write a Story // Button.stories.tsx import type { Meta , StoryObj } from ' @storybook/react ' import { Button } from ' ./Button ' const meta : Meta < typeof Button > = { component : Button , tags : [ ' autodocs ' ], } export default meta type Story = StoryObj < typeof Button > export const Primary : Story = { args : { variant : ' primary ' , children : ' Click me ' }, } export const Secondary : Story = { args : { variant : ' secondary ' , children : ' Cancel ' }, } export const Disabled : Story = { args : { variant : ' primary ' , children : ' Submit ' , disabled : true }, } export const Loading : Story = { args : { variant : ' primary ' , children : ' Saving... ' , loading : true }, } Interactive Tests import { within , userEvent , expect } from ' @storybook/test ' export const