DICOM Viewer for Mac, with an optional local workstation server.

DN Viewer is available from the Mac App Store or as a direct Apple Silicon .dmg installer. It supports core DICOM viewing, DICOM server access, MPR, 3D rendering, local file reading, and reporting tools in one native macOS app.

DN Viewer for Mac includes core DICOM viewing, MPR, 3D rendering, DICOM server access, AI-powered segmentation and volume calculation tools, and AI-assisted reporting in one native macOS app.

The current release runs natively on Apple Silicon Macs - M1, M2, M3, and M4 chips. An Intel Mac build is in active development and will be available soon.

DN Viewer requires macOS 12 Monterey or later. On Apple Silicon Macs it runs fully natively.

Yes. DN Viewer includes remote-PACS connectivity with C-FIND, C-GET, and C-MOVE, so you can query and retrieve studies directly from an existing PACS or worklist without leaving the Mac app. This client workflow is included.

The Mac App Store Workstation Server subscription enables a different role: receiving studies directly from other workstations, storing them locally, and serving those received studies to other workstations through C-FIND, C-GET, and C-MOVE. It is not needed for the included remote-PACS client tools.

DN Viewer is a native macOS application, not a browser-based viewer. That means faster image loading, no internet dependency for local files, no browser rendering overhead, and native macOS keyboard shortcuts and window management. MPR and 3D rendering run against the GPU directly.

Yes. DN Viewer is also available for Windows. The same core workflow — DICOM server access, MPR, 3D rendering, AI-powered segmentation and volume calculation tools, and AI-assisted reporting — is available on Windows.

OsiriX Lite is limited to 2D viewing and is no longer actively maintained for modern macOS. DN Viewer adds near-instant MPR, 3D rendering, direct DICOM server access, and AI-powered segmentation tools, and runs natively on Apple Silicon (M1/M2/M3/M4).

Horos is open-source and capable, but requires more setup and receives infrequent updates. DN Viewer is actively developed, installs in minutes from the Mac App Store, and includes AI-assisted reporting and built-in DICOM server connectivity out of the box — with no manual plugin configuration needed.

DN Viewer requires macOS 12 Monterey or later. The current release is optimised for Apple Silicon (M1, M2, M3, M4) and runs fully natively — no Rosetta required. An Intel Mac build is in development. At least 4 GB of RAM is recommended; 8 GB or more is ideal for large CT or MRI series with 3D rendering.

Yes. DN Viewer opens CT scans, MRI studies, X-rays, ultrasound, PET, and other medical imaging data in DICOM format directly on your Mac. Drag and drop a DICOM folder or file and it opens immediately — no conversion, no upload, no browser required. It works with DICOM files from hospital CDs, USB drives, and PACS servers.

Download DN Viewer from the Mac App Store. Once installed, drag your .dcm file or DICOM folder directly onto the app — it opens immediately. You can also use File → Open, or connect to a DICOM server to query and retrieve studies directly. No conversion or additional software needed.

Yes. DN Viewer works as a full MRI viewer on Mac. It reads MRI DICOM files from local folders, USB drives, hospital CDs, or directly from a PACS. The MRI layout memory feature automatically restores your reading protocol — pane layout, window levels, and series arrangement — each time you open a new study, so you don't have to rearrange anything.

DN Viewer is a native offline Mac app — not a browser-based or online DICOM viewer. Your local DICOM files open without any internet connection. You can also connect to a remote DICOM server or PACS when online, but the core viewer works entirely offline. This means faster image loading, no browser tab overhead, and no dependency on upload speeds for large CT or MRI series.