Convert gpx to topojson

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Gpx file(s) on your desktop and select Convert with Filestar.

  3. Type convert to topojson in the search box.

  4. Press Convert.

  5. Or let an AI agent do it: filestarcli -i file.gpx -c "convert to topojson" (how).

Let your AI agent convert GPX to TOPOJSON

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Convert the GPX files in my Downloads folder to TOPOJSON”

Or run it yourself:

filestarcli -i file.gpx -c "convert to topojson"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert GPX to TOPOJSON?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.gpx -c "convert to topojson" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .gpx and .topojson?

Extension
.gpx
.topojson
Category
GIS
GIS
Developer
Garmin
Mike Bostock
Description
A GPX file is a GPS data file saved in the GPS Exchange format, which is an open standard that can be freely used by GPS programs. It contains longitude and latitude location data that may include waypoints, routes, and tracks. GPX files are saved in XML format, which allows GPS data to be more easily imported and read by multiple programs and web services.
TopoJSON is a file format for encoding geographic data structures, based on the GeoJSON format. It encodes geometries more efficiently and supports topology, which enables more accurate representations of geographic objects. TopoJSON eliminates redundancy and simplifies data, making it smaller and easier to work with.
MIME Type
application/gpx+xml
application/vnd.geo+json

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