TopoJSON to PDF
Convert TopoJSON files to PDF format
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About TopoJSON
TopoJSON is a JSON extension to GeoJSON that encodes topology — shared boundaries between adjacent features are stored only once, reducing file size by 20–80% compared to equivalent GeoJSON. It was created by Mike Bostock and is widely used in web cartography for choropleth maps and visualisations built with D3.js.
You might convert from TopoJSON when you need to perform spatial analysis in a GIS that does not support the format, when you want to export individual layers from a multi-object TopoJSON topology, or when a downstream tool requires GeoJSON or Shapefile as input.
Frequently asked questions
Can TopoJSON be used with Leaflet directly?
Not directly — Leaflet requires GeoJSON. Convert the TopoJSON to GeoJSON first using this tool, then pass the result to L.geoJSON().
Does converting from TopoJSON to GeoJSON lose the topology?
Yes — GeoJSON does not store topology, so the converted file will have explicit coordinates for every boundary segment, including those shared between adjacent features. This is usually acceptable for analysis but does increase file size.
What is the difference between TopoJSON objects and GeoJSON FeatureCollections?
A TopoJSON file can contain multiple named objects (similar to layers), each of which can be converted to a separate GeoJSON FeatureCollection. This tool converts the first object found in the topology.
More TopoJSON Conversions
Convert TopoJSON files to other popular formats
to GeoJSON
.geojson
to KML
.kml
to Shapefile
.zip
to CSV
.csv
to GPX
.gpx
to GeoPackage
.gpkg
to FlatGeobuf
.fgb
to JSON-FG
.json
to MVT
.mvt
to PostgreSQL Dump
.sql
to PMTiles
.pmtiles
to MBTiles
.mbtiles
to DXF
.dxf
to GML
.gml
to Excel (XLSX)
.xlsx
to OpenDocument Spreadsheet
.ods
to GeoRSS
.xml
to MapInfo TAB
.tab
to File Geodatabase
.gdb.zip
to SpatiaLite
.sqlite
to GeoJSON Sequences
.geojsonl
to DGN (Microstation)
.dgn
to S57 Nautical Charts
.000
Convert to PDF From Other Formats
Convert other geospatial formats to PDF
from GeoJSON
.geojson
from KML
.kml
from Shapefile
.zip
from CSV
.csv
from GPX
.gpx
from GeoPackage
.gpkg
from FlatGeobuf
.fgb
from JSON-FG
.json
from MVT
.mvt
from PMTiles
.pmtiles
from MBTiles
.mbtiles
from DXF
.dxf
from GML
.gml
from OpenStreetMap
.osm
from Excel (XLSX)
.xlsx
from OpenDocument Spreadsheet
.ods
from SVG
.svg
from GeoRSS
.xml
from MapInfo TAB
.tab
from File Geodatabase
.gdb.zip
from SpatiaLite
.sqlite
from Esri JSON
.json
from GeoJSON Sequences
.geojsonl
from DGN (Microstation)
.dgn
from S57 Nautical Charts
.000
Visualize Your Data
View your geospatial files on an interactive map
Coordinate Conversion Tools
Convert between different coordinate systems