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Convert Your IGS CAD Files to OBJ

Our free and fast tool will convert most IGS (Initial Graphics Exchange Specification) CAD files to a standard OBJ (Wavefront) 3D model file that can then be edited further in most popular 3D editing packages such as Blender or 3D printed without any further processing. Our conversion tool can also batch convert multiple IGS files; up to 25 files at a time can be converted.

To convert your IGS file, click the Upload button above and select the file to convert. Once selected, the file will be converted to a OBJ file and will be ready for download shortly afterwards. For more information about the IGS to OBJ conversion process, see the conversion information section below.

How to Convert your IGS to OBJ Online?

Here are two simple steps to convert your IGS to OBJ.

Upload a IGS

Click the "Upload a IGS File" button and select a IGS to upload. The maximum file size is 100MB.

Download your OBJ

Click the download link once completed to receive your OBJ file.

File Format Information for IGS to OBJ

Full NameInitial Graphics Exchange Specification
Mime Typeapplication/iges
ToolsIGS Converters
Open WithFree CAD


IGS is an open file format used within CAD applications as a means of saving data in a format that can be opened and edited in other CAD applications. Its roots can be traced back to the mid-1970s, when it was used by the United States Air Force.

The format itself is a human-readable text-based format and contains data that can represent many different CAD elements, such as points, lines, arcs, and much more. IGS files can be opened with many modern CAD applications, such as FreeCAD.


The OBJ file format, originally created by Wavefront Technologies and later adopted by many other 3D software vendors, is a simple text-based file format for describing 3D models/geometry. This data can include vertices, faces, normals, texture coordinates, and references to external texture files.

As the format is text-based, it is relatively straightforward to parse in 3D modeling applications. A downside of the text-based format is that the files can be rather large compared to similar binary formats such as STL and compressed files such as 3MF.

OBJ Notes

Our tool will save any material and texture files separately; these additional files will be included with your final OBJ file at the time of download.

Supported Features

  • Mesh geometry
  • Materials (Via an MTL file)
  • Textures (PNG, JPG, TGA formats)

Frequently Asked Questions

How can I convert my IGS file to OBJ?

First click the "Upload..." button, select your IGS file to upload. Select any configuration options. When the IGS to OBJ conversion has completed, you can download your OBJ file straight away.

How long does it take to convert my IGS to OBJ?

We aim to process all IGS to OBJ conversions as quickly as possible, this usually takes around 5 seconds but can be more for larger more complex files so please be patient.

How accurate is the IGS to OBJ conversion?

We aim to create the most accurate conversions with our tools. Our tools are under constant development with new features and improvements being added every week.

Is it safe to convert my IGS to OBJ on ImageToStl.com?

Yes, of course! We do not store the IGS file you submit to us. The resulting OBJ file, once created is deleted 15 minutes after upload and the download link will expire after this time.

Can I convert my IGS to OBJ on Windows, Linux, Android, iOS or Mac OS?

Yes! Our IGS to OBJ tool will run on any system with a modern web browser. No specialist software is needed to run any of our conversion tools.

What if I am using an Ad Blocker, will that affect things?

Yes. Although you can use an Ad Blocker, if you like our IGS conversion tool please consider white-listing our site. When an Ad Blocker is enabled there are some conversion limits on some of our tools and processing/conversion times will be longer.

Can I get support with converting my IGS to OBJ?

Yes. When you have converted your IGS to OBJ, there is a "Feedback" option that you can use to let us know of any issues you encountered when converting your file.

Will the OBJ file retain the textures from my IGS file?

Yes! If your IGS file contains textured geometry, the texture image files along with the texture coordinates (UV data) will be exported with the final OBJ file.

I have several IGS files; can I batch convert my IGS to OBJ?

Yes! Our IGS tool supports full batch conversions. You can upload up to 25 and IGS files at a time. Our tool will convert them all as quickly as possible. Once completed, you can either download the OBJ files individually or download them all in a single ZIP file.

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