# CARTO Basemap

The CARTO Basemap is the default Basemap and it is included in all CARTO accounts. It uses the Open Source project [Maplibre GL JS](https://maplibre.org/projects/maplibre-gl-js/) and CARTO base maps API.

At the [Basemaps section](https://github.com/CartoDB/gitbook-documentation/blob/master/carto-for-developers/key-concepts/carto-for-deck.gl/basemaps/broken-reference/README.md) of CARTO for deck.gl you can find further information about how to use it. CARTO also provides a set of [Basemaps Styles](https://github.com/CartoDB/gitbook-documentation/blob/master/carto-for-developers/key-concepts/carto-for-deck.gl/basemaps/broken-reference/README.md) to easily adapt to multiple visualization contexts (dark, light, and voyager).

A code example is available [here](https://github.com/CartoDB/gitbook-documentation/blob/master/carto-for-developers/key-concepts/carto-for-deck.gl/basemaps/broken-reference/README.md).

### Further style customization

If the Basemaps Styles provided by CARTO are not enough and you need to go further to customize those styles you can do the following:

1. Download the style json. <https://basemaps.cartocdn.com/gl/positron-gl-style/style.json>
2. Modify the styles to match your requirements.
3. Put it in a public url.
4. Pass to deck.gl the mapSyle you want to use:

```javascript
 const deckgl = new deck.DeckGL({
  ...
  map: maplibregl,
  mapStyle: '<your styles json url>',
 });
```

If you need a UI to modify the styles, take a look at [Maptunik](https://maputnik.github.io/editor/) (A free and open visual editor tool for editing Basemaps styles).