shouldiuse.io

Categories

VERDICT

Should I use Horosproject?

Skip to content - horosproject.org

Worth it. Buy if you're a Mac-using clinician, vet, or researcher who needs free DICOM viewing with 3D reconstruction and volumetrics. Skip it if you're on Windows, need a full PACS, or expect vendor-grade support.

Confidence

Medium. Based on 25+ public sources; independent written reviews were sparse, and no quotable verbatim user reviews surfaced.

Ratings

  • Value for money
  • Ease of useNo usable usability evidence in sources
  • Feature depth
  • Support quality
  • Security posture

Pricing

$0

Horos

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Mac-based radiologists and clinicians
  • Academic researchers doing volumetrics
  • Veterinary imaging practices
  • Budget-strapped clinics viewing DICOMs

Not for

  • Windows or Linux users — no PC version exists
  • Hospitals needing a full PACS or enterprise imaging
  • Teams requiring vendor SLAs and responsive support
  • Anyone handling patient data without IT oversight

Gotchas - check before you buy

high

Mac-only — a mixed-OS team needs a second viewer for Windows staff

high

Medical imaging tools get exposed online; keep this off the public internet

medium

Beyond the community forum, real help means paid Horos Experts support

medium

Cloud reporting is a third-party Purview product, not built into Horos

Pros and cons

Pros

  • Completely free and open source
  • Used in numerous peer-reviewed clinical studies
  • Handles 3D CT reconstruction and volume measurement
  • Plugin ecosystem extends functionality
  • Physicians on Reddit recommend it for Mac MRI viewing

Cons

  • No PC version — Mac only
  • No integrations listed
  • Sparse independent reviews; comparison pages lack user ratings
  • Not a full PACS; cloud reporting is a separate product
  • Project depends on donations to survive

Sources & method

Analyzed 10/04/2026 - 12 sources - No known vulnerabilities found in the sources reviewed; open source with a published security page, but research flags internet-exposed medical imaging systems as a real risk.

official x5review x3security x1news x3

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 5/5. Completely free and open source, no tier limits
  • Ease of use. No usable usability evidence in sources
  • Feature depth: 4/5. 3D reconstruction, volumetrics, plugins per clinical studies
  • Support quality: 3/5. Community forum plus paid expert option
  • Security posture: 3/5. Open source with security page; exposure risks documented
  • $0 Price Free, open source
  • Yes Free tier Entire product is open source
  • 3,000+ Adoption Reported users/locations per SourceForge
  • 15+ Peer-reviewed use Clinical studies in reviewed evidence

Pricing

Horos

$0

  • Full DICOM viewer
  • 3D reconstruction
  • Plugin support

Security

No known vulnerabilities found in the sources reviewed; open source with a published security page, but research flags internet-exposed medical imaging systems as a real risk.

What users say

Reddit physicians recommend Horos as the go-to free Mac DICOM viewer, and researchers rely on it for 3D reconstruction and volumetric analysis.

Alternatives

Compare Horosproject with each alternative.

  • MicroDicom

    Free Windows DICOM viewer; natural pick for PC users

  • 3D Slicer

    Free, cross-platform research platform for heavier 3D analysis

  • RadiAnt

    Fast, lightweight Windows viewer built for ease of use

    Horosproject vs RadiAnt
Full analysis

Based on 25+ public sources; independent written reviews were sparse, and no quotable verbatim user reviews surfaced.

Free, open-source Mac DICOM viewer validated by researchers. Useless on Windows; not a PACS or enterprise imaging system.

Methodology

Based on 25+ public sources; independent written reviews were sparse, and no quotable verbatim user reviews surfaced.

Sources

  1. horosproject/horos on GitHub — free, open source medical image viewergithub.com
    official
  2. Download Horoshorosproject.org
    official
  3. Product security pagehorosproject.org
    official
  4. Horos Technical Supporthorosproject.org
    official
  5. Does Horos Have a PC Version?blog.horosproject.org
    official
  6. Horos Reviews in 2026 — SourceForgesourceforge.net
    review
  7. Compare Horos vs. MicroDicom in 2026slashdot.org
    review
  8. Reddit, r/medicine — seeking Mac MRI viewerreddit.com
    review
  9. 3D volumetric assessment of resected gliomas assisted by Horoscureus.com
    news
  10. How-To: Creating a 3D Reconstruction of Your Patient's CT Scanweb02.ctsnet.org
    news
  11. Is That Really My X-Ray? Measuring Internet-Exposed Medical Imagingarxiv.org
    security
  12. Horos launches Cloud Reporting (with Purview)purview.net
    news

Rate this review

Anonymous. You can change your vote.

Loading votes…

Comments

One queue. No nested comments. Give a display name first. Limit: 200 words per comment and 7 comments per day. You can edit or delete yours.

Save a name to write a comment.

0 / 200 words

No comments yet.