GML to GeoJSON
Convert GML files to GeoJSON format
🔒 All processing happens locally in your browser. Your files never leave your device.
About GML
GML (Geography Markup Language) is an XML-based OGC standard for encoding and transporting geographic information. It is the exchange format used by many WFS (Web Feature Service) endpoints and is required for data submission to some national spatial data infrastructures.
You might convert from GML when the data was downloaded from a WFS service and needs to be analysed in a GIS that prefers GeoJSON or Shapefile, or when you want to load the features into a web map without writing a custom XML parser.
Frequently asked questions
Why is my GML file so large?
GML is verbose XML — a dataset with many features will produce a large text file. Converting to GeoJSON reduces size somewhat; Shapefile or GeoPackage typically produce the smallest files.
Does GML support complex feature schemas?
GML supports complex, nested XML schemas. The converter flattens nested attributes into a simple key-value structure in the output. Complex nested schemas may lose some structure during conversion.
What GML versions are supported?
GML 2 and GML 3 (including 3.1.1 and 3.2) are supported. GML 3.2 is the most common version used by modern WFS services.
More GML Conversions
Convert GML files to other popular formats
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 PDF
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 GeoJSON From Other Formats
Convert other geospatial formats to 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 TopoJSON
.topojson
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