Getting Started
Floating UI is a tiny, low-level library for creating "floating" elements like tooltips, popovers, dropdowns, menus, and more.
The library provides two key functionalities:
1. Anchored positioning primitives
CSS is currently missing a feature called “anchored positioning” — the ability to anchor an element (like a tooltip) to another one (like a button) while simultaneously keeping it in view as best as possible by avoiding clipping and overflow.
Attempting to do fully dynamic anchored positioning with today’s plain CSS is not possible. Floating UI provides a JavaScript implementation of this feature.
2. User interaction primitives
When creating a popover, dropdown menu, select, or combobox component that follows WAI-ARIA authoring practices, the complexity increases dramatically. Focus traps, indexed navigation, and typeahead are difficult to get right.
This functionality is currently available for React DOM but will be made agnostic in the future.
Install
Choose the package that suits you.
Vanilla DOM positioning engine
Use with vanilla JavaScript or a non-React framework (view tutorial).
npm install @floating-ui/dom
React DOM positioning engine
Use with React DOM (view docs).
npm install @floating-ui/react-dom
React DOM interactions and positioning engine
Primitive hooks and components, in addition to the positioning engine, to use with React DOM (view docs).
npm install @floating-ui/react-dom-interactions
React Native positioning engine
Use with React Native (view docs).
npm install @floating-ui/react-native
Canvas or other platforms
Learn about creating a Platform.
npm install @floating-ui/core
CDN
View details
Floating UI can be loaded via CDN using ESM or UMD format.
ESM
import {computePosition} from 'https://cdn.jsdelivr.net/npm/@floating-ui/dom@1.0.1/+esm';
UMD
<script src="https://cdn.jsdelivr.net/npm/@floating-ui/core@1.0.1"></script>
<script src="https://cdn.jsdelivr.net/npm/@floating-ui/dom@1.0.1"></script>
All exports will be available on window.FloatingUIDOM
.
Package entry points
Using webpack, Vite, or Parcel? Skip this section as modern bundlers handle this for you.
Floating UI uses process.env.NODE_ENV
to determine whether
your build is in development or production mode. This allows us
to add console warnings and errors during development to help you
but ensure they get stripped out in production to keep the bundle
size small.
This causes an error in Rollup and low/no-build setups. To solve this, Floating UI exports browser-ready ES modules. Leverage the "browser" package export condition to use these modules.
Rollup example
The browser
option in the nodeResolve()
plugin will select browser versions of packages if available.
import {nodeResolve} from '@rollup/plugin-node-resolve';
export default {
// ...
plugins: [
nodeResolve({
browser: true,
// Add this line for development config, omit for
// production config
exportConditions: ['development'],
}),
],
};