Just want to convert one slice fast? Use the dedicated tool: DICOM to JPG converter →. Drop your file, pick the slice, download. No install, no upload.
How do I convert DICOM (.dcm) to JPEG?#
Step 1 — Export one slice the responsible way#
Scroll to the level you need, adjust brightness so anatomy is visible, then export. Mention which direction you are viewing (axial, sagittal, etc.) in the filename or caption so recipients know what they are seeing.
Step 2 — Export using the dedicated converter#
The fastest path is the dedicated converter at /tools/dicom-to-jpg. Drop your DICOM file, pick the slice, click Download. PNG, PDF, and JPG export are all available — JPG is the most universal.
Step 3 — Understand what disappears#
JPEG throws away subtle shades. DICOM window settings, slice thickness, and measurement tags vanish in a flat image. That is why remote second opinions still want DICOM.
Step 4 — When JPEG is the wrong tool#
If a doctor is deciding surgery or cancer staging, send DICOM through their portal. JPEG is for "this is the area I'm asking about," not for definitive reads.
What goes wrong when exporting DICOM to JPEG?#
- My JPEG looks blocky
- Increase quality or switch to PNG; heavy compression mimics disease.
- Colors look wrong
- MRI is grayscale; color maps are display tricks, not new data.
- Someone asked for JPEG but I am exporting from a different machine than usual
- Export there, then transfer the images with the same caution you would use for any medical file.
- I need to remove my name before sharing a screenshot
- Use the anonymization guide — cropping the corner is not enough if metadata still ships with DICOM.
Common questions#
Is PNG better than JPEG for scans?
Yes. PNG avoids lossy compression artifacts that can masquerade as pathology. PNG export is available in OpenMyScan; JPG is also offered for compatibility.
Can a doctor still use my JPEG?
For quick context, maybe. For decisions, they need DICOM.
Does this work offline?
Yes, after the first successful load. OpenMyScan caches in your browser, so you can use it on a plane or without WiFi as long as the page loaded once. Your files stay local either way.
What if my hospital CD has an installer (.exe / .app)?
Ignore it. Those launchers are often broken on modern computers. Copy the DICOM folder off the disc and open that folder in OpenMyScan instead.