Welcome to KotobaMedia
We develop open-source tools for processing GIS open data published by various Japanese governmental agencies. We also provide basic OpenStreetMap-based basemaps for use in data visualization and simple mapping applications, in addition to hosted datasets that have been created by the following tools.
- Import Japan's National Land Information (published and maintained by the Ministry of Land, Infrastructure, and Tourism) to well-known GIS formats - PostGIS, GeoParquet, FlatGeobuf, GeoJSON, etc.
- Convert cadastral land parcel XML files (published by the Ministry of Justice) to well-known GIS formats
- Download XYZ tiles to a PMTiles archive
If you have questions about the data we serve and/or the tools we provide, contact us
