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Display KML data
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Page Summary
This tutorial demonstrates how to display KML data on a Google Map and in a sidebar, triggered by marker clicks.
It guides you through setting up a KML file, creating a KML layer on the map, and capturing click events to populate the sidebar with feature information.
The tutorial uses entity replacement within the KML to customize the displayed information in the sidebar using ExtendedData elements.
It provides detailed code examples and explanations for each step, enabling you to create an interactive map with a dynamic sidebar.
You can find additional resources and documentation on using KML files with Google Maps for further exploration.
Data-driven styling for datasets
You can upload your KML data as a dataset and use data-driven styling to
display it on the map. This approach offers better performance and more
styling options.
You can also use third-party libraries to parse KML files in the browser and
display the data using the Maps JavaScript API's
Data layer or other overlays.
Popular third-party libraries for parsing KML include:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-04-30 UTC."],[],["This tutorial demonstrates how to display KML file information on a Google Map and in a sidebar. Key actions include: initializing a Google Map, creating a `KmlLayer` object to load a KML file from a URL, and configuring the layer to suppress info windows. An event listener is added to capture clicks on KML features. When a click occurs, the feature's `infoWindowHtml` content is extracted and used to update the content of a designated sidebar `div`, dynamically displaying the selected feature's information.\n"]]
