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Convert DGN to GML

Convert DGN (.dgn) to GML (.gml) online for free. Fast, accurate geospatial format conversion with CRS reprojection.

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Upload your DGN file and get GML output in seconds.

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About DGN

DGN (Design) is a CAD file format used by Bentley MicroStation for 2D and 3D design data. It is common in civil engineering and infrastructure projects.

Extensions: .dgn

Software: MicroStation, QGIS, AutoCAD, GDAL/OGR, Global Mapper

Limitations: Limited to Point, LineString, and Polygon geometries. No custom attributes. Complex element types may not convert.

About GML

Geography Markup Language (GML) is an OGC XML-based format for expressing geographic features. It is often used for data exchange between government agencies and in INSPIRE-compliant systems.

Extensions: .gml

Software: QGIS, ArcGIS, GeoServer, Deegree, GDAL/OGR

Limitations: Verbose XML format — large file sizes. Complex schema definitions. Slower to read/write than binary formats.

How to Convert DGN to GML

Upload your DGN file (.dgn)
Review detected layers, features, and coordinate system
Select GML as your output format
Choose a target coordinate reference system (optional)
Click Convert and download your GML file

Frequently Asked Questions

How do I convert DGN to GML?

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

Is the DGN to GML 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 GML files?

GML files can be opened with QGIS, ArcGIS, GeoServer, Deegree and more.