Repair your DWG Online

Do you have a DWG CAD file that will not open correctly? If so, our free-to-use DWG repair tool may be able to help. Our tool analyses the content of your DWG CAD file and is able to determine if the file structure (lines, curves, solids, etc.) is valid. Our tool will let you know what is wrong with your DWG file and attempt to fix it.

Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.

Please note: Your DWG, once uploaded to our server, will be deleted 15 minutes after upload.
If our tool offers the option to repair your file, please ensure you download the repaired file within this time period.

How to Repair your DWG Online?

Here are 3 simple steps to repair your DWG using our fast and free repair tool.

Upload your DWG

Click the "Select File" button, then select a DWG file. The maximum file size is 100MB.

Analysis and Repair

Your DWG file will be analysed, and our tool will attempt to repair your DWG file if possible.

Repair or Convert your DWG

Select an option to either repair or convert to receive your repaired DWG file.

DWG file format information

Full NameDrawing
Mime Typeapplication/octet-stream

A DWG file is a digital file format used for storing two-dimensional (2D) and three-dimensional (3D) design data in a computer-aided design (CAD) environment. DWG stands for "drawing," and it was developed by Autodesk, making it a proprietary format associated primarily with their AutoCAD software. However, DWG files can also be opened and edited by other CAD programs through licensing agreements with Autodesk or by using open-source tools. This widespread compatibility has made DWG one of the most widely used formats for sharing and exchanging design information among engineers, architects, and other professionals in the design and construction industries.

One of the key features of DWG files is their ability to store complex geometric data, including lines, arcs, circles, and other shapes that make up the design. Additionally, DWG files can contain information about layers, dimensions, annotations, and other metadata relevant to the design. These files can be large and intricate, as they often represent detailed architectural plans, engineering drawings, or mechanical designs. With advancements in CAD software, DWG files have evolved to support 3D models, allowing designers to create and share detailed 3D representations of their projects.

As the industry standard for CAD files, DWG plays a crucial role in facilitating collaboration and interoperability among different design teams and software applications. However, due to its proprietary nature, Autodesk has released various versions of the DWG format over the years, leading to compatibility issues between older and newer software versions. To address this, Autodesk periodically publishes the DWG file specifications, enabling other CAD developers to ensure their software remains compatible with the latest DWG formats, thereby ensuring the continued usefulness and widespread adoption of this versatile file format.

Repairing a DWG File

DWG CAD File Header Data

CAD files such as DWG contain binary content, which includes a header section. Where a header is present, our DWG repair tool will compare the header contents with what is actually present in the file data to work out the validation status of the file.

Lines, Curves, Solids Etc.

The building blocks of most DWG CAD files are the core elements: curves, surfaces, solids, and others. Our tool will parse the file, and if any issues are found with the containing elements, we will attempt to repair them.

Frequently Asked Questions

Is it free to use the DWG file repair tool?

Yes! Our DWG repair tool is 100% free to use.

Are there any usage limits when repairing my DWG file?

No, you can repair as many files as you wish. We do not have any limits when using our DWG repair tool.

How long does it take to repair my DWG?

We aim to process DWG repairs as quickly as possible; this usually takes around 5 seconds; however, this may be longer depending on the file size and data needed to be repaired.

What does the DWG repair process involve?

Once your DWG has been selected, it will undergo some initial checks to verify that the file has some basic information. If the initial checks pass, we then upload the file to our servers for more detailed analysis.

Is it safe to repair my DWG on

Yes, of course it is! Your DWG, once repaired, is deleted 15 minutes after upload, and any download link will expire after this time.

Can I repair my DWG on Windows, Linux, Android, iOS or Mac OS?

Yes! Our DWG repair tool will run on any system with a modern web browser.