Convert Kml To Mbtiles ((new)) Site
Converting KML to MBTiles is a standard process for taking vector geographic data from Google Earth and packaging it for offline use or high-performance web mapping. Because KML is an XML-based vector format and MBTiles is a SQLite-based tile container (often raster or vector tiles), the conversion requires a specific workflow to define zoom levels and tile rendering. Method 1: Desktop GIS (QGIS) - The Professional Standard
This is the most flexible method, allowing you to control styling and tile resolution.
Import KML: Drag your KML file into QGIS. If it has many sub-layers, use the KML Tools plugin to merge them into a single point, line, or polygon layer.
Style Your Data: KML styles (colors, icons) often don't import perfectly. Set your desired symbology in the Layer Properties menu in QGIS. Generate MBTiles:
Open the Processing Toolbox (Ctrl+Alt+T) and search for "Generate XYZ tiles (MBTiles)".
Extent: Select the area you want to export (e.g., "Calculate from Layer"). convert kml to mbtiles
Zoom Levels: Define the range (e.g., Zoom 10 for broad view to 18 for street level).
DPI: Higher DPI improves quality for high-resolution screens but increases file size.
Tile Format: Choose PNG/JPG for raster tiles or PBF for vector tiles. Run: Click Run to generate the .mbtiles file.
Method 2: Command Line (Tippecanoe) - For Large Vector Datasets
If you want vector MBTiles (which allow for dynamic restyling and smaller file sizes), Tippecanoe by Felt is the gold standard for developers. Converting KML to MBTiles is a standard process
Convert KML to GeoJSON: Tippecanoe requires GeoJSON. Use GDAL/ogr2ogr for this:ogr2ogr -f GeoJSON output.json input.kml
Generate MBTiles:tippecanoe -o output.mbtiles -Z10 -z18 output.json -Z and -z set the minimum and maximum zoom levels. Method 3: Online Converters - Quick and Easy
For smaller files or one-off tasks, web-based tools handle the backend processing automatically.
MyGeodata Cloud : Specifically supports direct KML to MBTiles conversion. It allows you to upload multiple files, set conversion parameters, and download a ZIP of the result.
QuickMapTools : A streamlined interface for converting placemarks and preserving feature properties like names and descriptions. Key Considerations Convert vector features to raster tiles at specified
Raster vs. Vector: MBTiles can store static images (raster) or raw geometry (vector). Raster is better for imagery overlays; vector is better for labels and interactive data.
KMZ Files: These are just zipped KMLs. Rename the extension to .zip, extract the .kml file inside, and then proceed with conversion.
Scale Limits: When converting ground overlays (imagery), the process can be lengthy if you attempt to convert at every available scale. KML to MBTiles Converter Online | MyGeodata Cloud
2. Rendering to Raster Tiles
- Convert vector features to raster tiles at specified zoom levels (e.g., 0–12)
- Customizable styling per geometry type:
- Point: marker icon, size, color
- Line: stroke width, color, opacity
- Polygon: fill color, border, opacity
- Anti-aliased rendering for smooth lines and polygons
Limitations (to document)
- 3D KML models (Collada) are not supported — only 2D vector and image overlays
- Rich text labels (CDATA) will be simplified
- Very high zoom levels (>18) may produce large tile sets
- GroundOverlays must be in EPSG:4326 projection to align correctly
How to Convert KML to MBTiles: A Step-by-Step Guide
If you work with Geographic Information Systems (GIS), you’ve likely encountered a common friction point: sharing rich, heavy map data with clients or stakeholders who just need a quick visual reference.
KML (Keyhole Markup Language) is fantastic for vector data and Google Earth visualization, but it isn't optimized for modern web mapping applications. MBTiles, on the other hand, is the industry standard for storing tilesets for fast web rendering.
In this guide, we will explore how to convert KML to MBTiles, ensuring your maps load instantly on any device.