> For the complete documentation index, see [llms.txt](https://docs-jmapserver-lima.k2geospatial.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-jmapserver-lima.k2geospatial.com/e/extensions/jmap-ng-configuration.md).

# JMap NG Configuration

The JMap NG Configuration extension allows you to write Javascript code that will be executed automatically when JMap NG is opened for a given project. 

It therefore allows you to perform several actions or configurations that are not available in JMap Admin and that would normally require custom extensions, scripts or configurations.