CAD diff - visual comparison for CAD files

"CAD diff" is a freeware Windows utility for CAD documents visual comparison.


CAD Diff version, 5 MB zip for Windows, v1.4, release date 06.12.16

Download link:

Supported file formats

Internal support for common image formats like BMP, GIF, PNG, PSD, EPS, SVG etc. (read full list).

If you have the MS Visio installed on your computer, you can use the CAD Diff for comparison of MS Visio VSD files, DWG and DXF drawings.

If you have the KOMPAS Graphic installed you can use the CAD Diff for comparison of CDW drawings


Command line usage:

cad_diff.exe OldFile NewFile

Using with version control clients

If you have a "Version Control for engineers" installed, you don't need to use the CAD Diff - VCE already have the equal image diff functions.

You can easily integrate the CAD Diff to you preferable SVN, GIT, Fossil, Mercurial etc. client.

Here is an example for TortoiseSVN:

Here is an example for SmartGit:

Release history

VersionDateWhat's new
1.406 dec 2016+ KOMPAS Graphic CDW support.
1.325 may 2016+ Trim operation for image edges erasing.
1.218 may 2016+ Dual file select dialog (if no command line provided)
1.125 Apr 2016+ Support for related paths to compared files
1.019 Apr 2016First release