KML to GeoJSON
Extract vector placemarks from a self-contained KML document.
Drop your files here
Make something new. Keep everything private.
Multiple files welcome · processed one at a time
Select a tool to see its supported formats and conversion limits. Large files may exceed your browser’s memory.
Before processing large files
On phones and tablets, start with files under 20 MiB and keep this tab in the foreground. Video, OCR and 3D operations can use several times the input size in memory. Desktop browsers generally have more room, but the 128 MiB job limit is not a guarantee that every file will fit. Smaller batches reduce memory pressure.
Supported input formats
- Keyhole Markup Language (.kml)
Output format
GeoJSON geographic data (.geojson)
Support applies to this conversion direction. Check the limits below for features that may change or be discarded.
Compare all supported formats and conversion limits →How to use KML to GeoJSON
- Add your supported file using the chooser or drop zone.
- Review the settings and conversion limits before processing.
- Select Convert files, then download the result.
What to expect
- 20 MB / 100,000 features. All selected placemarks form one collection. MultiGeometry becomes GeometryCollection.
- Styles, altitude modes, timestamps, folder hierarchy and feature IDs are omitted. Links, overlays, tracks, 3D models and typed SchemaData are rejected. No KMZ.
Engine: Native WGS84 vector mapping. The engine may need a first-use download. Your file stays in this browser session.Check conversion engines and offline requirements.
Conversion settings
These settings are available in the converter above.
- Source and target coordinates
- Choices: EPSG:4326 · WGS84 longitude / latitude.
- Layer selection
- Choices: Single GeoJSON collection / all KML placemarks.
About this conversion
Is kml to geojson free?
Yes. This tool runs on your device without an account or a conversion fee.
Are files uploaded during conversion?
File processing happens locally in your browser. Engines may download their code on first use; your input files are not sent to a conversion server. Read how file privacy works.
What if conversion fails?
Check that the file matches a supported input, review the engine’s limitations and try a smaller representative file. If the engine cannot load, check its engine assets and browser requirements. The app reports failures without switching to a remote converter.
Continue with your output
These tools accept this tool’s output format. Each step has its own settings and fidelity limits.
- Vector dataset to GeoJSON
Convert one selected vector layer and reproject it entirely on your device.
- Vector dataset to GeoPackage
Convert one selected vector layer and reproject it entirely on your device.
- Vector dataset to KML
Convert one selected vector layer and reproject it entirely on your device.
- Vector dataset to Shapefile ZIP
Convert one selected vector layer and reproject it entirely on your device.
- GeoJSON to KML
Map self-contained WGS84 point, line and polygon features into KML.
- Create TAR.GZ
Bundle selected files into a gzip-compressed USTAR archive.
More geospatial tools
- Reproject GeoTIFF band
Select one raster band and export a reprojected, losslessly compressed GeoTIFF.
- GeoTIFF band to PNG
Preview one raster band as a contrast-scaled grayscale PNG.