Microstation DGN

.dgn

Supported

DGN (Design) is the native design file format of Bentley Systems Microstation, widely used in infrastructure engineering (roads, bridges, pipelines) and architectural design. DGN files contain rich vector graphics, annotations, and reference information. Vector features from DGN can be extracted to standard GIS formats through the GDAL library.

Specifications

Standard: Bentley Systems

MIME: application/octet-stream

Key Features

Bentley Microstation native format
Supports rich engineering graphic elements and reference systems

Advantages

Standard format in infrastructure and engineering design

Limitations

Proprietary format, parsing relies on third-party libraries like GDAL
Complex coordinate reference system handling

Common Use Cases

Importing infrastructure engineering data into GIS systems
Data exchange between Bentley Microstation and GIS platforms

Related Tools

DGN → GEOJSON