> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/llms.txt)
# Add an icon to the map
This example uses an image from an external URL to visualize a point feature on the map.
Upon loading, the map uses [`loadImage`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#loadimage) to load the image from an external domain, [`addImage`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#addimage) to add the image to the style as an icon, [`addSource`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#addsource) to add a data source containing one point feature, and [`addLayer`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#addlayer) to create a new [symbol layer](https://docs.mapbox.com/style-spec/reference/layers/#symbol) that uses the icon to represent the point data and instructs the client to draw the image for each point in the data source.
> **Note (warning): Supported File Types**
>
> Only `.png`, `.jpg` and `.webp` formats are supported when loading images into a style at runtime using [`map.loadImage()`](https://docs.mapbox.com/mapbox-gl-js/api/map/#map#loadimage). Other file types like `.svg` are not supported.
> Example code:
**JavaScript**
```html
Add an icon to the map
```
**React**
```jsx
import React, { useEffect, useRef } from 'react';
import * as mapboxgl from 'mapbox-gl/esm';
import 'mapbox-gl/dist/mapbox-gl.css';
const MapboxExample = () => {
const mapContainerRef = useRef();
const mapRef = useRef();
useEffect(() => {
mapRef.current = new mapboxgl.Map({
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
accessToken: 'YOUR_MAPBOX_ACCESS_TOKEN',
container: 'map',
style: 'mapbox://styles/mapbox/standard',
config: {
basemap: {
theme: 'monochrome',
lightPreset: 'night'
}
},
zoom: 10,
center: [-77.432, 25.0306]
});
mapRef.current.on('load', () => {
mapRef.current.loadImage(
'https://docs.mapbox.com/mapbox-gl-js/assets/cat.png',
(error, image) => {
if (error) throw error;
mapRef.current.addImage('cat', image);
mapRef.current.addSource('point', {
type: 'geojson',
data: {
type: 'FeatureCollection',
features: [
{
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [-77.4144, 25.0759]
}
}
]
}
});
mapRef.current.addLayer({
id: 'points',
type: 'symbol',
source: 'point',
layout: {
'icon-image': 'cat',
'icon-size': 0.25
}
});
}
);
});
}, []);
return ;
};
export default MapboxExample;
```