A dwg file extension is used for common CAD file format, originally used by AutoCAD. A DWG is a proprietary format and can only be created in AutoCAD. Other CAD programs can usually import it, but not create its proprietary form. It's because of this, that DWGs are often exported to DXF interchange format, so they can be seamlessly used in other CAD programs.

There is one other file type using
the DWG file extension!

dwg file icon.dwg - BravoDRAFT Detailer file

Detailed description

Software that works with dwg file extension

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DWG file extension - AutoCAD drawing

What is dwg file? How to open dwg files?

File type specification:

3d graphics, CAD-CAM-CAE file type icon 3d graphics, CAD-CAM-CAE file type

dwg file icon: dwg filetype icon

The dwg file extension is associated with AutoCAD, a CAD software developed by Autodesk, Inc..

The dwg (drawing) file format is a proprietary format used to store two or three dimensional data with any other metadata.

DWG file format was developed in the late 1970s by Mike Riddle and licensed to Autodesk in the 1982 for their AutoCAD application. The DWG file format has been updated several times with last update in 2010 (DWG 2010 - AC1024).

One thing to remember is, that newer versions of AutoCAD can read older versions of DWG files and can save projects in older versions of the DWG, but older versions of the AutoCAD can't read the new ones.

Because of this, some applications are able to read only some .dwg files, but cannot open different DWG version until they are either updated or have proper plugin is installed. To bypass the difficulties when opening various .dwg files, try to export them to DXF interchange format in its default program and import it to the other program.

The DWG format is probably one of the most widespread format used for CAD drawings (both 2D and 3D) and licensed for use in many applications.

MIME types:

The default software associated to dwg file type:

DWG TrueView icon

Autodesk, Inc. logo DWG TrueView  Microsoft Windows software

Company or developer:
  Autodesk, Inc.

DWG TrueView is DWG and DXF viewer with DWG TrueConvert software included. It is used the same viewing engine as AutoCAD.

AutoCAD icon

Autodesk, Inc. logo AutoCAD  Microsoft Windows software

Company or developer:
  Autodesk, Inc.

Autodesk AutoCAD is a CAD development platform that provides tools to build custom AutoCAD-based software products for specific markets and extend design information to users outside the traditional CAD community. You can easily create industry-specific products that offer only the features, commands, menus, and design data that your customers require.

AutoCAD for Mac icon

Autodesk, Inc. logo AutoCAD for Mac  Apple macOS / Mac OS X software

Company or developer:
  Autodesk, Inc.

AutoCAD® for Mac® software—it’s AutoCAD, for the Mac, bringing robust 3D free-form design tools and powerful drafting capabilities to your platform of choice. It takes full advantage of the Mac OS® X platform, with an intuitive, graphical user interface that makes it easy to bring your ideas to life.

Related articles:

Convert DWG to PDF

Help how to open DWG files:

DWG format is mainly used in AutoCAD, but also widely supported by other CAD applications (Pro/Engineer, Solid Edge, SolidWorks, EasyDone) and all of them are able to open *.dwg files.

However you may need a plug-in or update for newer versions of DWG format if you are using some older CAD software and want to open the latest .dwg files.

If you have difficulties with opening some older .dwg file, try to convert to .dxf file first. That should solve most problems.

How to convert file with extension DWG:

AutoCAD can save DWG drawing to another formats. Save the DWG file to another format via File|Save as.., or File|Export menus.

Other applications capable of working with .dwg files may be able to convert or export them as well.

Find conversions from dwg file:

dwg to 3ds

dwg to cdr

dwg to obj

dwg to skp

dwg to step

dwg to stl

dwg to vsd

Find converter to dwg file type:

ai to dwg

dwfx to dwg

easm to dwg

igs to dwg

jpg to dwg

skp to dwg

stp to dwg

File identification strings:

HEX code: 41 43
ASCII code: AC

List of software applications associated to the .dwg file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open dwg file, edit dwg file, convert dwg file, view dwg file, play dwg file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the dwg files.

  • Open dwg file
  • Save dwg file
  • Edit dwg file
  • View dwg file
  • Convert dwg file
  • Create dwg file
  • Import dwg file
  • Export dwg file
  • Print dwg file

Software that open dwg file - AutoCAD drawing

Click on the link to get more information about listed programs for open dwg file action.

Microsoft Windows:

Apple macOS / Mac OS X:

Main software associated with dwg file by default:
AutoCAD for Mac small icon AutoCAD for Mac
Other suggested software:
SketchUp for Mac small icon SketchUp for Mac


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