Convert TopoJSON to GPX

Convert TopoJSON (.topojson, .json) to GPX (.gpx) online for free. Fast, accurate geospatial format conversion with CRS reprojection.

Ready to convert?

Upload your TopoJSON file and get GPX output in seconds.

About TopoJSON

TopoJSON is an extension of GeoJSON that encodes topology, eliminating redundancy and reducing file size. Shared boundaries between features are stored only once.

Extensions: .topojson, .json
Software: D3.js, Mapbox, QGIS, GDAL/OGR, Leaflet
Limitations: Read-only in most GIS software. Requires conversion for editing. Less widely supported than GeoJSON.

About GPX

GPS Exchange Format (GPX) is an XML-based format for GPS data including waypoints, tracks, and routes. It is the standard for sharing GPS data between devices and applications.

Extensions: .gpx
Software: Garmin BaseCamp, Strava, AllTrails, QGIS, Google Earth
Limitations: Only supports Point and LineString geometries. No custom attributes. WGS 84 only.

How to Convert TopoJSON to GPX

  • Upload your TopoJSON file (.topojson, .json)
  • Review detected layers, features, and coordinate system
  • Select GPX as your output format
  • Choose a target coordinate reference system (optional)
  • Click Convert and download your GPX file

Frequently Asked Questions

How do I convert TopoJSON to GPX?

Upload your TopoJSON file to ConvertGeoData, review the detected data, select GPX as the output format, and click Convert. Your converted file will be ready to download in seconds.

Is the TopoJSON to GPX conversion free?

Yes! ConvertGeoData offers free conversions for all users. No account required for basic conversions. Sign up for a Pro or Business plan for higher limits.

Can I change the coordinate system during conversion?

Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.

What software can open GPX files?

GPX files can be opened with Garmin BaseCamp, Strava, AllTrails, QGIS and more.

Does GPX support different coordinate systems?

GPX requires EPSG:4326. ConvertGeoData automatically reprojects your data to the correct CRS.

Convert TopoJSON to GPX Now

No installation required. Works in your browser.

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