Convert FlatGeobuf to DGN

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

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Upload your FlatGeobuf file and get DGN output in seconds.

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About FlatGeobuf

FlatGeobuf is a performant binary encoding for geographic data based on FlatBuffers. It supports streaming and random access for fast partial reads.

Extensions: .fgb

Software: QGIS, GDAL/OGR, Leaflet, OpenLayers, GeoServer

Limitations: Relatively new format with limited support in older software. Single layer per file.

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.

How to Convert FlatGeobuf to DGN

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

Frequently Asked Questions

How do I convert FlatGeobuf to DGN?

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

Is the FlatGeobuf to DGN 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 DGN files?

DGN files can be opened with MicroStation, QGIS, AutoCAD, GDAL/OGR and more.