Convert TopoJSON to GeoJSON

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About this conversion

Convert TopoJSON topology objects to GeoJSON features. This converter processes your TopoJSON file server-side and returns a GeoJSON file instantly — no account, no software installation, and no file storage. Files are deleted from our servers immediately after conversion.

Learn more: GeoJSON file format explained

How to convert TopoJSON to GeoJSON

1. 1. Upload — drag your TopoJSON file onto the converter above, or click to browse.
2. 2. Convert — press Convert. Processing happens on secure servers in seconds.
3. 3. Download — your GeoJSON file downloads automatically. No sign-up required.

Convert TopoJSON to GeoJSON from the command line

curl --fail-with-body \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -F "file=@input.json" \
  -F "conversionId=topojson-to-geojson" \
  https://www.omniconvert.cloud/api/convert -o output.geojson

The API needs a token from a credit pack, and each API conversion uses one credit. Converting on this page stays free. API documentation