Convert topojson to gml

  1. Download and install the latest version of Filestar.

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

  3. Type convert to gml in the search box.

  4. Press Convert.

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

Let your AI agent convert TOPOJSON to GML

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 TOPOJSON files in my Downloads folder to GML”

Or run it yourself:

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

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 TOPOJSON to GML?

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

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .topojson and .gml?

Extension
.topojson
.gml
Category
GIS
GIS
Developer
Mike Bostock
Galdos Systems
Description
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.
Geography data format created by Galdos Systems and supported by the Open Geospatial Consortium; used by geographers for storing geographical data in a standard interchangeable format.
MIME Type
application/vnd.geo+json
application/gml+xml

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