How do I open a .DCM file on Windows or Mac?

You can open .DCM files using MicroDicom Viewer, Horos (macOS), RadiAnt DICOM Viewer, OsiriX. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .DCM to a standard format in your browser.

Is a .DCM file safe to open?

This format carries a safety rating of Low Risk. Ensure patient health information (PHI) is anonymized before sharing DCM files Magic bytes DICM located at byte offset 128

Can I convert a .DCM file to other formats?

Yes! .DCM can be converted to formats such as .PNG directly in your web browser.

What should I do if a .DCM file is corrupted or won't open?

If your .DCM file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .DCM files?

You can open .DCM files using MicroDicom Viewer, Horos (macOS), RadiAnt DICOM Viewer, OsiriX.

Medical & Science • MIME: application/dicom

.DCM – DCM File Format

Q: What is a .DCM file?

A .DCM file is a DCM File Format associated with Medical & Science. Complete guide to .DCM (DICOM) medical imaging files used in CT scans, MRI, ultrasound, and X-rays. Learn how to view DICOM files safely with HIPAA compliance.

Complete guide to .DCM (DICOM) medical imaging files used in CT scans, MRI, ultrasound, and X-rays. Learn how to view DICOM files safely with HIPAA compliance.

Primary Category Medical & Science

MIME Type application/dicom

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .DCM

MicroDicom Viewer

windows, mac, linux • Free

Horos (macOS)

windows, mac, linux • Free

RadiAnt DICOM Viewer

windows, mac, linux • Free

OsiriX

windows, mac, linux • Free