Where to download RadiAnt DICOM Viewer (Windows)
- Go to the RadiAnt DICOM Viewer page on radiantviewer.com. RadiAnt DICOM Viewer 2026.1, built on 14 July 2026, was the version offered on 13 November 2026.
- Check your PC: Windows 7, 8, 8.1, 10 and 11 are supported, and the installer picks the 32-bit or 64-bit viewer for your system.
- Install it and open the disc, folder or file.
Trial and price. Medixant offers RadiAnt as a free trial. The trial expires after a set period that is shown after activation, and can be reactivated for further evaluation. After that it is a subscription per PC: the pricing page listed 5 EUR for one month and 39 EUR for one year for a single PC when we checked, before local taxes.
Download it from radiantviewer.com rather than a third-party download site. The 2026.1 release fixes a security vulnerability, so an old copy from elsewhere is a poor idea.
Is there a RadiAnt DICOM Viewer for Mac?
No. Medixant's own macOS page says RadiAnt is designed and tested specifically for the Windows platform, and that it does not officially support RadiAnt on operating systems other than Windows. It adds that RadiAnt can technically run on macOS using the paid CrossOver Mac software (it names CrossOver Mac 23.5 for macOS 14 Sonoma on Intel and Apple silicon Macs), and warns that some features may be unavailable or may cause the program to crash.
If you want a program made for macOS instead, these are the ones we checked on 13 November 2026:
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
- 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.
- 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.
- 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.
- 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).
RadiAnt and SlideScope compared
RadiAnt facts come from Medixant's own pages, checked on 13 November 2026; see the sources below.
When RadiAnt is the better choice
If you work on Windows and want a radiology-style viewer, RadiAnt does things SlideScope does not: it rebuilds other planes, renders 3D volumes and fuses PET with CT, and you can try it for free before paying. For looking at one scan of your own on Windows, the trial may be all you need. On a Mac, a viewer made for macOS is the more dependable route than CrossOver, by the maker's own account: start with Weasis or OsiriX Lite if you want a free one. 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.
RadiAnt questions
Is RadiAnt DICOM Viewer free?
It is a free trial, then paid. Medixant offers RadiAnt as a free trial that expires after a set period and can be reactivated for further evaluation; continued use is a subscription per PC.
Where can I download RadiAnt DICOM Viewer?
From radiantviewer.com, which offered RadiAnt DICOM Viewer 2026.1 for Windows 7, 8, 8.1, 10 and 11 when we checked on 13 November 2026.
Is there a RadiAnt DICOM Viewer for Mac?
No. Medixant says RadiAnt is designed and tested for Windows and is not officially supported on other operating systems. It can technically run on macOS through the paid CrossOver Mac, with a warning that some features may be unavailable or may crash.
What can I use instead of RadiAnt 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.
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.
Sources and non-affiliation note
SlideScope is independent and is not affiliated with, endorsed by, or sponsored by Medixant or the makers of the other viewers named here. Product names are used only to describe comparison and alternative search intent. Facts were taken from each maker's own pages on 13 November 2026:
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.