Peer Dependencies

Required peers

Package	Version	Why
`react`	`^19.0.0`	Component rendering
`react-dom`	`^19.0.0`	DOM rendering
`tailwindcss`	`^4.0.0`	Utility CSS classes
`@floating-ui/react-dom`	`^2.0.0`	Popper/Dropdown positioning
`i18next`	`^23.0.0`	Built-in translations (optional)
`react-i18next`	`^14.0.0`	React i18n bindings (optional)

Popper, Dropdown, and ActionsDropdown use @floating-ui/react-dom for anchor-relative positioning. Install it separately:

npm install @floating-ui/react-dom

If you only use components that don't require floating positioning (Button, Badge, Switch, Tag, Spinner, etc.), you can skip this dependency.

UnflowUI requires Tailwind CSS v4 (not v3). The Tailwind v4 PostCSS plugin is separate from the tailwindcss package:

npm install tailwindcss @tailwindcss/postcss

// postcss.config.mjs
export default {
  plugins: { '@tailwindcss/postcss': {} },
};