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RadiAnt DICOM Viewer alternatives: 4 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave RadiAnt DICOM Viewer: windows only, and time-limited subscription; access ends when the plan expires. We ranked 4 alternatives by how directly each one replaces RadiAnt DICOM Viewer, then by reviews, real visits and how recently each app's facts were checked against its own website. Weasis currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1OsiriX MD logoOsiriX MDPaidNomacOS, iOS4 of 450.3
  1. OsiriX MD logo

    1. OsiriX MDTop pick

    Best for: Radiologists and clinics on Macs who need a certified DICOM workstation

    PaidmacOS, iOS

    50.3

    score / 100

    Why switch from RadiAnt DICOM Viewer

    Certified Mac workstation with more advanced 3D and 4D post-processing.

    Pros

    • FDA-cleared and CE-labelled for diagnostic use
    • Deep 2D, 3D and 4D post-processing, including PET-CT
    • Plugin system for custom research tools

    Cons

    • Runs only on Apple hardware
    • Subscription pricing adds up compared with free viewers
    • Free Lite version marks images as not for medical use
    Visit OsiriX MD Details and reviews
    How this score is calculated
    Editorial fit ×0.346
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is OsiriX MD a good RadiAnt DICOM Viewer alternative?

    Verified facts

    4 of 4 verified
    Starting price
    $69.99/month
    Checked Oct 29, 2026osirix-viewer.com(opens source in a new tab)
    Certification
    FDA Class II, CE IIa
    Checked Oct 29, 2026osirix-viewer.com(opens source in a new tab)
    Platforms
    macOS only
    Checked Oct 29, 2026osirix-viewer.com(opens source in a new tab)
    Free version
    OsiriX Lite (not for medical use)
    Checked Oct 29, 2026osirix-viewer.com(opens source in a new tab)

The best RadiAnt DICOM Viewer alternative for…

The highest-ranked app in this list for each need.

Weasis logo

Best RadiAnt DICOM Viewer alternative for most people

Weasis

Free and open source, runs on Windows, macOS and Linux, and has stronger PACS and web portal integration.

Horos logo

Best RadiAnt DICOM Viewer alternative for a free option

Horos

Free open-source option for anyone moving to a Mac who wants a full DICOM workstation.

3D Slicer logo

Best RadiAnt DICOM Viewer alternative for open source

3D Slicer

Free and cross-platform, with much more segmentation and 3D analysis for research work.

OsiriX MD logo

Best RadiAnt DICOM Viewer alternative for Mac

OsiriX MD

Certified Mac workstation with more advanced 3D and 4D post-processing.

Weasis logo

Best RadiAnt DICOM Viewer alternative for Windows

Weasis

Free and open source, runs on Windows, macOS and Linux, and has stronger PACS and web portal integration.

Weasis logo

Best RadiAnt DICOM Viewer alternative for Linux

Weasis

Free and open source, runs on Windows, macOS and Linux, and has stronger PACS and web portal integration.

RadiAnt DICOM Viewer alternatives: common questions

What is the best alternative to RadiAnt DICOM Viewer?

Weasis ranks first right now. Free and open source, runs on Windows, macOS and Linux, and has stronger PACS and web portal integration. Horos and 3D Slicer follow it in our ranking.

Is there a free alternative to RadiAnt DICOM Viewer?

Yes. Weasis (open source), Horos (open source) and 3D Slicer (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to RadiAnt DICOM Viewer?

Yes: Weasis, Horos and 3D Slicer.

Which RadiAnt DICOM Viewer alternatives work on Linux?

Weasis and 3D Slicer run on Linux.

Why do people switch from RadiAnt DICOM Viewer?

The complaints we hear most: windows only; time-limited subscription; access ends when the plan expires; no FDA or CE certification, so not for diagnosis.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces RadiAnt DICOM Viewer, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.