Is there a RadiAnt DICOM Viewer alternative for Mac?

Yes. DN Viewer, OsiriX MD, Horos, and Weasis are Mac-compatible DICOM viewers. Each can open local DICOM studies; their PACS and DICOMweb capabilities differ by product and deployment.

Which Mac DICOM viewer can open local files and connect to PACS?

DN Viewer, OsiriX MD, Horos, and Weasis support local DICOM studies and classic PACS workflows. DN Viewer, OsiriX MD, and Weasis also support DICOMweb workflows; confirm protocol and security requirements with your PACS administrator.

What is the best RadiAnt alternative for Mac?

DN Viewer is our top choice for Mac users who want a native viewing workflow with local DICOM opening, PACS, DICOMweb, MPR, and 3D tools. Horos and Weasis are also available with different workflow and integration trade-offs.

RadiAnt Alternative for Mac: Best Mac DICOM Viewers (2026)

On this pageQuick comparison #1 DN Viewer OsiriX MD Horos Weasis FAQ

Quick comparison

Mac alternatives for local DICOM and networking

All four options can open local DICOM studies. Network availability depends on your PACS configuration, AE titles, firewall rules, and DICOMweb authentication setup.

Rank	Viewer	Local DICOM	Classic PACS / DIMSE	DICOMweb	Best fit
#1	DN Viewer Mac + Windows	✓ Open files & folders	✓ Query / retrieve	✓ Supported	Modern Mac workflow with MPR, 3D, reporting, and AI tools
#2	OsiriX MD Mac only	✓ Import local studies	✓ Supported	✓ Supported	Established Mac workstation and specialized workflows
#3	Horos Open source	✓ Import local studies	✓ Supported	Check deployment	Classic Mac DICOM and PACS workflows
#4	Weasis Cross-platform	✓ Files, folders & media	✓ Supported	✓ Supported	Cross-platform and enterprise/PACS integration

1. DN Viewer

Our #1 choiceMac + Windows

Best all-round RadiAnt alternative for Mac users who need both local viewing and connected workflows.

DN Viewer is built for users who want to open a study from a local folder, USB drive, or download, then move straight into PACS or DICOMweb work without changing applications. It combines fast MPR and 3D viewing with annotations, reporting, AI-assisted segmentation and volume calculation.

For a Mac-based team that occasionally works on Windows, DN Viewer also keeps the same viewer workflow across both platforms. AI report editing and speech-to-text are available as optional features.

Local studiesFiles, folders, and imported DICOM

PACS networkingTraditional DICOM / DIMSE

Web archivesDICOMweb support

Download for Mac →See full Mac comparison

2. OsiriX MD

Mac only

A strong choice for Mac-only teams that want an established diagnostic workstation and extensive post-processing tools.

OsiriX MD is a long-standing Mac DICOM workstation. It can import studies locally and connect with PACS through standard DICOM networking; its vendor also documents DICOMweb workflows. It remains a useful fit where its established ecosystem or regulated workflow is a priority.

Local studiesLocal import supported

PACS networkingStandard DICOM supported

Web archivesDICOMweb supported

Visit OsiriX MD

3. Horos

Open sourceMac only

A practical alternative for users focused on local studies and traditional DICOM/PACS connections.

Horos is an open-source Mac DICOM viewer with an OsiriX-derived workflow. It is a reasonable option for opening local studies and working with classic DICOM network connections, especially when familiar tools matter more than a newer interface or DICOMweb-first workflow.

Local studiesLocal import supported

PACS networkingClassic DICOM workflow

Web archivesConfirm compatibility with your deployment

Visit Horos

4. Weasis

Open sourceMac + Windows + Linux

Best suited to cross-platform deployments and organizations that need broad PACS and DICOMweb integration options.

Weasis is a cross-platform open-source viewer. It can load DICOM files and folders locally, work with DICOMDIR media, query and retrieve through classic DICOM networking, and connect to DICOMweb archives. Its breadth is especially useful in integrated or mixed-operating-system environments.

Local studiesFiles, folders, ZIPs, and DICOMDIR

PACS networkingDIMSE query / retrieve

Web archivesDICOMweb supported

Visit Weasis

Choose by how you receive studies

Local files only: any option on this page can work. Traditional PACS: confirm the PACS node details and whether it uses C-FIND, C-MOVE, or C-GET. DICOMweb or portal launch: DN Viewer, OsiriX MD, and Weasis are the clearest choices listed here. In clinical environments, always validate compatibility and security requirements with your PACS administrator before relying on a viewer in production.

FAQ

RadiAnt alternatives on macOS

Can I use RadiAnt DICOM Viewer on a Mac?

If you need a native macOS workflow, use a Mac-compatible alternative. DN Viewer, OsiriX MD, Horos, and Weasis are options designed to run on macOS.

Which Mac DICOM viewer supports both local files and PACS?

DN Viewer, OsiriX MD, Horos, and Weasis can open local DICOM studies and work with PACS. Exact connectivity depends on the product version and the configuration of your DICOM network.

Which option supports DICOMweb on Mac?

DN Viewer, OsiriX MD, and Weasis support DICOMweb-oriented workflows. Check authentication, endpoint, and transfer requirements with your PACS or archive administrator.

Is DN Viewer for primary diagnosis?

DN Viewer is not FDA-cleared for primary diagnostic use. Use it in accordance with your organization’s policies and applicable regulatory requirements.