Geo Cloud Converter

Maphub.co launches #GeoCloudConverter, a browser-based #WASM tool that transforms common geospatial file types — #GeoJSON, #Shapefile, #KML, #GPX, CSV, #GeoPackage, or #GeoTIFF – into modern, #cloudnative formats like #GeoParquet, #FlatGeobuf, #PMTiles, or Cloud-Optimized GeoTIFF (#COG). The tool performs all processing locally in your browser for quick, private conversions up to 1 GB.
Author

Ralph Straumann

Published

October 28, 2025

Maphub.co have built Geo Cloud Converter. The tool runs in your browser and its premise is simple: Drop a GeoJSON, a Shapefile (zipped or not), a KML, a GPX, a CSV1, a GeoPackage, or a GeoTIFF onto its interface and obtain a cloud-native representation of it – a Cloud-optimized GeoTIFF (COG) if your input was a (standard) GeoTIFF, a GeoParquet2 file, a Flatgeobuf file, or PMTiles in all other cases.

Quick demo by Pierre Blanchet:

Geo Cloud Converter is built using GDAL3 and DuckDB WASM4. The latter means that the data never leaves your computer, all processing is done in your browser. Maximum file size is 1 GB.

Neat, for quick testing or in a pinch.

Footnotes

  1. I’m not sure what schema is expected here. I imagine an X and a Y column in EPSG:4326?↩︎

  2. I don’t expect the tool to do anything clever around sorting GeoParquet contents (it doesn’t know enough to decide on a good strategy), but rather to take and convert the data ‘as is’.↩︎

  3. Of course.↩︎

  4. WebAssembly↩︎