TopoJSON to GeoJSON
Convert a named TopoJSON object into GeoJSON features while expanding shared arcs in your browser.
Input
If a topology contains multiple named objects, select one by name or leave blank to use the first.
Review these warnings
GeoJSON
Map preview
Understanding TopoJSON to GeoJSON
Geometry and attribute translation
Convert a named TopoJSON object into GeoJSON features while expanding shared arcs in your browser.
TopoJSON to GeoJSON translates topojson into geojson. Geometry and common properties usually transfer, while styling, CRS metadata and format-specific extensions may not have direct equivalents.
What to check after conversion
If a topology contains multiple named objects, select one by name or leave blank to use the first.
After TopoJSON to GeoJSON, compare feature counts, geometry types, bounds and representative attributes with the source. Open the output independently before replacing or distributing the original file.