Convert GPX to TopoJSON
Convert GPX (.gpx) to TopoJSON (.topojson, .json) online for free. Fast, accurate geospatial format conversion with CRS reprojection.
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.
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.
How to Convert GPX to TopoJSON
- Upload your GPX file (.gpx)
- Review detected layers, features, and coordinate system
- Select TopoJSON as your output format
- Choose a target coordinate reference system (optional)
- Click Convert and download your TopoJSON file
Frequently Asked Questions
Upload your GPX file to ConvertGeoData, review the detected data, select TopoJSON as the output format, and click Convert. Your converted file will be ready to download in seconds.
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.
Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.
TopoJSON files can be opened with D3.js, Mapbox, QGIS, GDAL/OGR and more.