GeoJSON to TopoJSON
Convert GeoJSON into TopoJSON topology with shared arcs for smaller files and topology-aware workflows.
Input
Quantization is optional and can alter coordinate precision. Feature properties are preserved.
Review these warnings
TopoJSON
Map preview
Understanding GeoJSON to TopoJSON
Geometry and attribute translation
Convert GeoJSON into TopoJSON topology with shared arcs for smaller files and topology-aware workflows.
GeoJSON to TopoJSON translates geojson into topojson. Geometry and common properties usually transfer, while styling, CRS metadata and format-specific extensions may not have direct equivalents.
What to check after conversion
Quantization is optional and can alter coordinate precision. Feature properties are preserved.
After GeoJSON to TopoJSON, compare feature counts, geometry types, bounds and representative attributes with the source. Open the output independently before replacing or distributing the original file.