DWG File Extension

DWG file icon

AutoCAD Drawing Database Format

What is a DWG file?

AutoCAD Drawing Database Format, identified by the DWG extension, is a CAD, CAM and CAE Files type and includes 148 files.

The AutoCAD Drawing Database Format (DWG) was developed by Autodesk, which created file format and 45 programs to work with them.

DWG files are supported by Windows, Mac OS and Linux, as well as mobile phones such as Apple iOS. To open a DWG file, you can choose from 73 programs such as AutoCAD, SolidWorks and IntelliCAD.

File Signature

HEX code: 41 43. ASCII code: AC.

How to open a DWG file?

If you cannot open a DWG file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.

The most popular programs for working with DWG files are AutoCAD, SolidWorks and IntelliCAD. To install the current version of AutoCAD, go directly to the official Autodesk website. The universal package for all operating systems is available there.

After installation, your operating system should automatically open DWG files with AutoCAD.

Set AutoCAD as the default DWG handler

Changing the default program in Windows

  1. Right click on your DWG file, then select "Open with" and click "Choose another application";
  2. In the pop-up window, find and select the AutoCAD application from the available options;
  3. Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening DWG files.

Choose an app to open a file on Mac

  1. Right click or use Control + left click on the desired DWG file to launch the file options menu;
  2. Select "Open in application" and click "Other";
  3. Next, at the bottom of the window, you will see the "Enable" menu, in which "Recommended Programs" is selected by default;
  4. In this menu, select "All Programs", then find AutoCAD and check the box next to "Always open in the application."

Convert to and from DWG

For difficult DWG files, try converting them to formats like DXF, JPG, JPEG, GIF, PNG or similar formats to improve usability.

Please note that after converting a DWG file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.

Several applications, including DWG TrueView, can convert DWG files offline without quality loss.

Convert DWG to other file formats

Converting Files to DWG Format

Effective solutions for DWG file problems

There are some common issues with DWG files that can be resolved easily by making minor adjustments to your software. Below, you’ll find these issues along with practical troubleshooting tips.

How do I know if my DWG file is corrupted?

Corrupted DWG cad, cam and cae files may have one or more of the following symptoms:

  • Opening the file results in an error or a failed attempt;
  • Poor performance when editing a file in AutoCAD;
  • Opening the file in AutoCAD or other programs causes them to hang or crash;
  • Unexpected expansion of the total size of the DWG file;
  • Error messages appear while working with the file;

Why does AutoCAD crash or shut down frequently?

The likely cause of AutoCAD crashing is lack of software updates. Install the latest updates available for Autodesk products.

Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.

Is there any specific software or utility that can help repair a damaged DWG file?

Open the corrupted DWG file in a recovery program and select the "Repair" menu item. Allow the recovery process to complete, which will automatically repair the damaged cad, cam and cae files.

How to edit a DWG file?

To edit DWG files, you need to install specialized software that allows you not only to open but also to modify cad, cam and cae files. Online DWG editors usually provide fewer features than software created specifically for AutoCAD Drawing Database Format.

List of Top DWG editors 2026

Based on these criteria, we have prepared a list of available DWG editors.

DWG Editor SoftwareDeveloperPlatformsOverall Rating
Advance SteelAutodeskWindows4.8 out of 5 (44 reviews)
pCon.plannerEasternGraphicsWindows4.8 out of 5 (48 reviews)
SketchUpTrimble NavigationWindows, Mac OS4.8 out of 5 (44 reviews)
AutoCADAutodeskWindows, Mac OS4.7 out of 5 (42 reviews)
Autodesk InventorAutodeskWindows4.7 out of 5 (50 reviews)
BricscadBricsys nvWindows4.7 out of 5 (44 reviews)
Autodesk Fusion 360AutodeskWindows, Mac OS, Linux4.6 out of 5 (42 reviews)
IntelliCADITCWindows4.6 out of 5 (47 reviews)
Pro/ENGINEERParametricWindows4.6 out of 5 (46 reviews)
SolidWorksSolidWorksWindows4.4 out of 5 (46 reviews)