---
title: "Display a popup | JavaScript maps SDK"
description: "Add an information popup to the map."
---
> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.
# Display a popup
Add a [`Popup`](https://docs.maptiler.com/sdk-js/api/markers/#popup) to the map.
### NPM module setup
```bash
npm install --save @maptiler/sdk
```
#### main.js
```js
import { Map, MapStyle, config, Popup } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';
config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const map = new Map({
container: 'map',
style: MapStyle.STREETS,
center: [-96, 37.8],
zoom: 3
});
const popup = new Popup({ closeOnClick: false })
.setLngLat([-96, 37.8])
.setHTML('
Hello World!
')
.addTo(map);
```
#### index.html
```html
Display a popup | NPM example | MapTiler SDK JS
```
#### style.css
```css
body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}
```
### Basic JavaScript setup
```html
Display a popup
```
## Related examples
### [Display a popup on hover](https://docs.maptiler.com/sdk-js/examples/popup-on-hover/)
Examples
Show a popup when hovering over a custom marker.
### [Show polygon information on click](https://docs.maptiler.com/sdk-js/examples/polygon-popup-on-click/)
Examples
Display a popup when a user clicks a polygon.
### [Weather custom popup](https://docs.maptiler.com/sdk-js/examples/weather-custom-popup/)
Examples
Create highly customizable popups for weather maps using MarkerLayout.
### [Attach a popup to a marker instance](https://docs.maptiler.com/sdk-js/examples/set-popup/)
Examples
Attach and display a popup to a map marker.