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Vecaria

GeoJSON to TopoJSON

Local

Convert GeoJSON to TopoJSON (shared topology, smaller files), locally in your browser.

What is it? GeoJSON to TopoJSON converts GeoJSON to TopoJSON, which stores shared boundaries once and therefore produces smaller files.

TL;DR: Convert GeoJSON to compact TopoJSON.

How to use

  1. Open a GeoJSON layer.
  2. Download the .topojson file.

FAQ

Why TopoJSON?

Shared topology is stored once, so multi-polygon datasets are much smaller.

Is it local?

Yes.

Limitations

  • Requires consistent topology in the input.
  • Attributes are preserved as-is.

Privacy

Privacy first: this tool runs entirely in your browser. Your input and files never leave your device.

Related tools

GeoJSON to DXF →Shapefile to GeoJSON →GeoJSON to KML →KML to GeoJSON →GPX to GeoJSON →GeoJSON to Shapefile →GeoJSON Buffer →GeoJSON Simplify →

Do more

Batch process files →More in gis →Browse all tools →