Development QueueChannel: topojson → geojson
TopoJSON to GeoJSON Converter
Reconstruct standard spatial vectors from compact TopoJSON files.
Decompress modern TopoJSON files into standard, fully-expanded GeoJSON format. This tool processes shared lines and boundaries to reconstruct separate, individual polygon shapes.
Direct Target Stream Unavailable
This direct channel is planned for an upcoming release. In the meantime, consult the technical specifications and guidelines below.
Specification Rules
- Export web maps and regional boundary files into standard GIS tools
- Convert localized boundary datasets for visual rendering
- Import lightweight map models into desktop analysis systems
- Expanded output files will contain duplicate coordinate lines
- Conversion increases overall file sizes when working with many shared lines
- Requires explicit file validation to ensure accurate decoding
GDAL Direct Equivalent Terminal Command
sh console shell
$ogr2ogr -f GeoJSON output.geojson input.topojson
Frequently Asked Queries
What is the difference between TopoJSON and GeoJSON?
TopoJSON encodes sharing boundaries, eliminating redundant coordinates. GeoJSON maps shapes independently, causing redundant lines in adjacent shapes.
How are properties handled during conversion?
Attributes and non-spatial variables remain linked to the respective features in the output file.
Are coordinates reprojected during this translation?
By default, coordinate systems are kept as-is, but you can apply standard projection properties.