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Free online DWG to GEOJSON converter

Convert CAD drawings to GeoJSON for GIS and web mapping, with coordinate-system considerations.

Convert DWG to GEOJSON online - free

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A drawing does not say which system it is drawn in. Enter its EPSG code, for example 32633 (UTM 33N), 27700 (British National Grid) or 4326 (degrees). Codes are listed at epsg.io. Left empty, coordinates in degrees are recognised on their own.

Your file is processed instantly and deleted as soon as you download it.

How it works

  1. 1/3

    Upload your .dwg file

    Click to browse to select your file you want to convert or simply drag & drop your file into selected area.

  2. 2/3

    Perform .dwg to .geojson conversion

    After successful file upload, click to convert when you are ready.

  3. 3/3

    Download converted .geojson file

    Conversion result is ready to download.

How to convert dwg to geojson file

101convert.com assistant

101convert.com assistant
7m

Web maps and GIS tools often require GeoJSON rather than a CAD drawing, so DWG files are converted when their geometry needs to be shared or used in a web-mapping workflow. Conversion can also reproject coordinates, but it does not preserve every CAD object or drawing style.

What DWG is

DWG is a proprietary CAD drawing format used for 2D plans and 3D models. Autodesk AutoCAD and compatible CAD applications create and edit DWG files; they are common in architecture, engineering, construction, and surveying.

What GEOJSON is

GeoJSON is a text-based format for geographic features such as points, lines, and polygons, with optional properties attached to each feature. GIS software and web-mapping libraries use it because it is portable and straightforward to exchange. GeoJSON coordinates are generally expected in longitude and latitude using WGS 84 (EPSG:4326).

How to convert DWG to GEOJSON

Online on 101convert.com

  1. Open the DWG-to-GEOJSON converter page on 101convert.com and upload the drawing. You can add several files for batch conversion; the page shows the per-file size limit.
  2. Set the drawing coordinate system by entering its EPSG code.
  3. Start the conversion and download the resulting GeoJSON file or files.

Offline with desktop software

Free workflow: ODA File Converter and GDAL. ODA File Converter converts DWG to DXF; GDAL’s OGR tools can then write DXF geometry as GeoJSON.

  1. Open the DWG in ODA File Converter, select DXF as the output format, and convert the file.
  2. Run GDAL’s ogr2ogr on the resulting DXF. If the source CRS is known and available to the tool, use ogr2ogr -t_srs EPSG:4326 output.geojson drawing.dxf. If the DXF has no CRS information, specify its actual source CRS with -s_srs EPSG:XXXX, replacing XXXX with the correct EPSG code.

GDAL must include its DXF driver. ODA File Converter is available for Windows, macOS, and Linux; GDAL is available on those systems as well.

Commercial workflow: FME Form. Add the DWG as a reader and GeoJSON as a writer, connect the features, set or reproject the source coordinates to EPSG:4326 when needed, and run the workspace.

Compatibility and limitations

Check the source coordinate system before converting: assigning the wrong CRS or omitting a required reprojection can place features incorrectly on a map. GeoJSON represents geographic features, not the full CAD drawing model; dimensions, blocks, styling, and some 3D or curved geometry may be omitted, simplified, or converted to supported geometry types.

Note: This dwg to geojson conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.

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DWG vs GEOJSON: format comparison

How the DWG and GEOJSON formats compare on the properties that matter most for this conversion.

Comparison of the DWG and GEOJSON file formats
Property .DWG AutoCAD Drawing .GEOJSON GeoJSON
Open standard Partly open Yes
Compression Both Uncompressed
Typical file size Large Medium
Opens in a web browser No Partial
Further editing Easy Easy
Metadata support Basic Basic
Plain-text readable No Yes
Best used for Professional production Data exchange
Introduced — 2008
Developer Autodesk GeoJSON working group / Internet community
MIME type application/acad application/geo+json
Open DWG file Open GEOJSON file

Information about file extensions and file types is provided by File-Extensions.org

Frequently asked questions

Is the DWG to GEOJSON converter free?

Yes, converting DWG to GEOJSON on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my DWG file be?

You can upload DWG files up to 10 MB and convert up to 3 files at once in a single batch. With a paid plan the limit is up to 50 MB per file and 10 files at once, see our plans.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert DWG to GEOJSON?

No. The DWG to GEOJSON conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid DWG file for this DWG to GEOJSON conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

dwg to geo dwg to gerber

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