A low-fat, to the point, 3D DICOM viewer, surface analyzer and converter.

Espresso Ray 3D is a 3D viewer and surface generation analysis tool designed to work with DICOM images and other medical imaging formats (namely nifti-1). It supports 3D volumetric data. It supports both grayscale and color DICOM image volumes. Designed for CT and MRI modalities, possible applications of the software are virtually limitless. Unlike complicated bloated medical software, Espresso Ray 3D exists to be as simplistic and to-the-point as possible for completing both common and sophisticated medical imaging tasks. If you need to quickly view, image, surface, and analyze data from MRI and CT, ER3D will do it!

These days, medical software tends to be bloated, overcomplicated and not very easy to use. But what about those of us who are not medical professionals? It seems as if traditional medical viewers missed the memo: Mac software should be simple, easy, and shouldn't require any training to use. Apply that concept to a DICOM file viewer, and Espresso Ray is the result.

What’s New

Version 1.3.0

- added optional 3D orthogonal slicing planes to the volume rendering feature
- improve robustness of morphometric shape analysis (advanced analysis toolkit)
- improved stability of the batch conversion
- many bug fixes for OSX El Capitan
- other minor bug fixes

Ratings and Reviews

1.3 out of 5
3 Ratings

3 Ratings

Joelaug ,

I cannot open files with it. It seems that I lost my money...

It doesn’t work!

Gentle Explorer ,

A very technical product for very technical people.

I purchased this to look at my own MRI images, provided by the hospital. I figured it would be a simple viewer that would show pretty 3D images of my spine.

The user interface is a bit sparse. It’s not exactly clear what to do or what the many controls do, nor is there a lot of help within the app.

Eventually I got it to display 3D images. They were certainly impressive but in the end not too useful to me.

Perhaps if you are a medical professional who looks at these things all day long you would get quite excited and the controls and technical words would be more obvious to you. For the layman, this product is most likely to be way, way more obscure than you would end up enjoying.

The user interface is not elegant. It is more “functional” without working through the UI nuances that is more typical of Apple products. Buy this if you are a doctor-geek and not as a lay-person.

The company has been very communicative and has helped resolve some problems reading a few of the files. ,

Awesome app

I had to get a CT scan. They provided me with a CD that had DICOM files on it to give to my doctor. I loaded it up in this app without any problems. It was really easy to use. The 3D feature is very cool, you can rotate the view and the images are super crisp.


ER3D Group LLC
27.6 MB

OS X 10.7 or later, 64-bit processor



Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
© 2013 ER3D Group LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.