DICOM viewer

MicroDicom: Download, Mac Version and Alternatives

MicroDicom is a DICOM viewer for Windows that opens the CT, MRI and X-ray images on a hospital disc, and it is free for non-commercial use. There is no native Mac version: MicroDicom itself calls it an application for Windows that can run on a Mac through Wine, and it publishes a macOS package for that. If you would rather use a viewer made for the Mac, Weasis is free and open source, OsiriX Lite is a free demo, and SlideScope is a paid viewer for Mac and Windows that opens a whole scan disc and keeps the images on your computer.

macOS and WindowsCT, MRI and X-ray discsScans stay on your computer

Where to download MicroDicom (Windows)

  1. Go to the MicroDicom downloads page. MicroDicom DICOM Viewer 2026.5 was the version offered on 13 November 2026.
  2. Choose the installer (24.3 MB, for 32-bit and 64-bit Windows) or a portable ZIP that needs no installation. The files were linked directly on the page when we checked, with no form.
  3. Check your PC: MicroDicom lists Windows 7, 8, 8.1, 10 or 11.
  4. Open the disc, a folder of DICOM files, or the disc's DICOMDIR, which gives a patient list for the whole disc.

Licence. MicroDicom says it is free for non-commercial use; commercial use needs a licence from its online store. It also states that the program has no CE mark and no FDA approval as a medical device, and must not be used for clinical purposes.

Is there a MicroDicom for Mac?

Not a native one. MicroDicom's own macOS page says MicroDicom is an application for Windows that you can still use on a Mac, because Windows applications can run on macOS with Wine. It gives two routes:

RouteCostWhat you do
WineFree, open sourceDownload the macOS package from the MicroDicom downloads page (22 MB for version 2026.5) and follow MicroDicom's video
CrossOver MacPaid; a trial version is offeredCrossOver Mac is commercial software based on Wine; MicroDicom has a video for this route too

Either way you are running a Windows program through a compatibility layer, and MicroDicom asks you to write in its forum if something does not work on your Mac. If you want a program made for macOS instead, these are the ones we checked on 13 November 2026:

ViewerCostRuns on
WeasisFree, open sourcemacOS 12 or later on Apple silicon, macOS 11 or later on Intel; also Windows 10 or later and Linux
OsiriX LiteFree demo of OsiriX MD; every image carries a “NOT FOR MEDICAL USAGE” tagmacOS 12 to 27, Apple silicon and Intel
SlideScopePaid: free download and free sample library, then a subscription for your own scans (plans)macOS 14 or later (Apple silicon and Intel), Windows 10/11

Horos is another free, open-source viewer for the Mac; its own website did not respond when we checked, so it is listed here from its source repository only.

How to open a scan disc on a Mac with SlideScope

  1. Install SlideScope for macOS 14 or later (Apple silicon or Intel); it also runs on Windows 10 and 11. The download is free, and the built-in sample library, which includes a real, de-identified chest CT, is free with every tool; opening your own scans needs a subscription.
  2. On the Home screen, click Got a scan on a CD or USB? Open it. SlideScope finds the disc by its DICOMDIR index and lists each series once. You can also open the DICOMDIR file on the disc directly, or a single .dcm file.
  3. Open a series and scroll through the slices. For a CT, switch to the soft tissue, lung, bone or brain window from the window menu.
  4. Measure distances in millimetres. To keep the scan after the disc goes back, choose Copy this scan to your computer.

SlideScope shows the slices as the scanner stored them: it does not rebuild other planes or 3D views. Medical scans stay on your computer and are never sent to AI, saved to the cloud or shared by link. It is for viewing and measuring, not for diagnosis; the radiologist's report and your doctor explain what a scan shows. Most Macs have no disc drive: connect a USB DVD drive, or copy the disc on another computer first (how to view a scan CD on a Mac).

MicroDicom and SlideScope compared

 MicroDicomSlideScope
PlatformsWindows 7, 8, 8.1, 10 and 11; on a Mac only through Wine or CrossOvermacOS 14 or later (Apple silicon and Intel), Windows 10/11
CostFree for non-commercial use; a paid licence for commercial usePaid: free download and free sample library, then a subscription for your own scans (plans)
How you get itDirect download; installer or portable ZIPDownload from this site with a free account
Whole discOpens DICOMDIR with a patient listFinds the disc by its DICOMDIR and lists each series once
Other planes and 3DMPR in axial, coronal, sagittal and oblique planes; 3D volume rendering of CT and MRNo: slices as the scanner stored them
MeasuringDistance, angle, Cobb angle, areas, calibrationDistances in millimetres
ExportDICOM to JPEG, BMP, PNG, GIF, TIFFCopies the scan to your computer
Medical useNo CE mark or FDA approval; not for clinical purposesViewing and measuring only; not for diagnosis
Other imagesDICOMAlso pathology slides and microscopy images

MicroDicom facts come from MicroDicom's own pages, checked on 13 November 2026; see the sources below.

When MicroDicom is the better choice

If you have a Windows PC and want to look at your own scan, MicroDicom is free for that, needs no account, and does more than SlideScope does with a CT or MRI: it rebuilds other planes and renders 3D volumes, and its portable ZIP runs from a USB stick. On a Mac, if you are comfortable setting up Wine, the same program is free there too. If you want a free viewer made for the Mac, start with Weasis or OsiriX Lite. SlideScope fits when you want a plain viewer that finds the disc, opens each scan as one stack and copies it to your computer, on a Mac or on Windows, without a compatibility layer.

MicroDicom questions

Is MicroDicom free?

For non-commercial use, yes. MicroDicom states that it is free for non-commercial use and that commercial use needs a licence from its online store.

Where can I download MicroDicom?

From the downloads page on microdicom.com, which offered MicroDicom DICOM Viewer 2026.5 as an installer and as a portable ZIP when we checked on 13 November 2026.

Is there a MicroDicom for Mac?

Not a native one. MicroDicom is a Windows application. Its maker publishes a macOS package that runs it through Wine, and describes a second route through the paid CrossOver Mac.

What can I use instead of MicroDicom on a Mac?

Viewers made for macOS include Weasis, which is free and open source, OsiriX Lite, which is a free demo that tags every image “NOT FOR MEDICAL USAGE”, and SlideScope, which is a paid viewer for macOS 14 or later.

Can I use MicroDicom for diagnosis?

No. MicroDicom states that the program has no CE mark and no FDA approval as a medical device and must not be used for clinical purposes.

Is SlideScope free?

No. SlideScope is a paid app. The download and the built-in sample library, which includes a real chest CT, are free with every tool. Opening your own scans needs a subscription; current prices are on the plans page.

Is my scan uploaded when I open it in SlideScope?

No. SlideScope opens DICOM files from your own disk, on your own computer. A medical scan such as a CT, MRI or X-ray is never sent to AI, saved to the cloud or shared by link.

Can SlideScope tell me what my scan shows?

No. SlideScope is for viewing and measuring, not for diagnosis. The radiologist's report and your doctor explain what a scan shows.

Try it on a real CT first

The free sample library includes a real, de-identified chest CT, so you can scroll, change the window and measure before opening your own disc. Your own scans need a subscription. Already decided? Subscribe now.

Download SlideScope