---
title: "migrate | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> 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.

# Function migrate

-   migrate(style: [StyleSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/StyleSpecification/)): [StyleSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/StyleSpecification/)[](#migrate)
    
    Migrate a Mapbox/MapLibre GL Style to the latest version.
    
    #### Parameters
    
    -   style: [StyleSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/StyleSpecification/)
        
        a MapLibre Style
        
    
    #### Returns [StyleSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/StyleSpecification/)
    
    a migrated style
    
    #### Example[](#example)
    
    ```typescript
    const fs = require('fs');
    const migrate = require('@maplibre/maplibre-gl-style-spec').migrate;
    const style = fs.readFileSync('./style.json', 'utf8');
    fs.writeFileSync('./style.json', JSON.stringify(migrate(style)));
    ```