DICOM VIEWER FOR MAC · RESEARCH & EDUCATION
A DICOM viewer for Mac. More ways to explore your study.
Open a local DICOM study, compare its series, and move from slices to MPR and 3D volume rendering. OmniDICOM brings viewing, cine playback and editable DICOM metadata to one Mac desktop application for research and education.
No card required. Paid licence after trial. Trial exports have limitations.
Apple silicon
macOS 13 or later · M-series Macs
MPR + 3D
Explore planes and rotate a volume
Editable metadata
Inspect tags and save supported values
Open DICOM files on your Mac
Install the signed, notarized macOS PKG, then open OmniDICOM from Applications. Choose File → Open Folder… or drag a DICOM folder into the viewer. Select a series in the left-hand list and scroll through its images.
When copying a study from a disc, keep its folder structure, including DICOMDIR and image subfolders. A Windows-only viewer supplied on the disc cannot run as a Mac app, but its accompanying DICOM images are a separate part of the study. Files do not always have a .dcm extension.
See CT and MRI in more than one plane
For a suitable volume series, the 2×2 MPR layout brings axial, coronal and sagittal views together with a 3D view. Move through the reslices, adjust window and level, then inspect the volume from another angle.
MPR depends on the source study: a single image or a time sequence is not automatically a reconstructable CT or MRI volume. Geometry, slice spacing and the available images affect the result.
Review motion and edit the details
Play multi-frame angiography and ultrasound sequences, pause on a frame and adjust playback speed. For compatible angiographic series, DSA tools add mask selection and pixel-shift alignment.
The DICOM Meta panel lets you inspect tags and edit supported top-level values. This is useful for correcting research labels or series descriptions. Saving metadata writes to the selected files, so work on a copy when preserving originals matters.
Check compatibility before downloading
The current Mac build requires Apple silicon and macOS 13 or later. Intel Macs are not supported by this installer. A separate installer is available for 64-bit Windows 10 and 11.
Study viewing runs locally. An internet connection is needed to start the trial and for licensing and update services; PACS transfers use the servers you configure. The desktop viewer does not require uploading a study to the OmniDICOM website.
Common questions
Is this a free Mac DICOM viewer?
OmniDICOM offers a 14-day Professional trial with no card required. Continued use requires a paid licence. Basic starts at US$10/month per computer; trial exports have limitations. It is not permanently free software.
Do I need Professional for MPR or 3D?
No. MPR, 3D volume rendering, cine playback, DSA subtraction and metadata editing are included in Basic. Professional adds the Process and Analyze workspaces.
Can I use it for diagnosis?
No. OmniDICOM is for research and education. It is not a medical device and is not intended for diagnosis or clinical decision-making.
Watch: how to open CT and MRI on Mac →
START WITH YOUR OWN STUDY
Try the complete viewer.
The 14-day Professional trial starts on first launch with an internet connection. Basic is US$10/month or US$99/year per computer. Continued use requires a paid licence; trial exports have limitations.
macOS 13+ · Apple silicon · signed, notarized PKG
Windows 10/11 · 64-bit · signed EXE