DICOM to JPG converter
Convert DICOM to JPG online for free. Turn .dcm medical images into ordinary JPG pictures you can email or print. Runs in your browser.
What it does
JPG is the format everything understands. Once your scan is a JPG you can attach it to an email, put it in a document, print it or send it over a messaging app — none of which is possible with the original DICOM.
The converter renders each image exactly as the viewer shows it, applying the correct window so the result looks right rather than washed out, and writes a plain JPG with no medical metadata attached.
Single image or whole study
Convert one slice or every image you have loaded, delivered as a ZIP.
Adjustable quality
Trade file size against detail with a quality slider.
Correct windowing
The stored window is applied so the anatomy is visible, not a flat grey rectangle.
No metadata carried over
The exported JPG contains pixels only — no patient name, no identifiers.
How to use it
Add your DICOM files
One file, several, or a ZIP of the study.
Choose what to convert
The current image or everything loaded.
Set the quality
Higher quality means a bigger file.
Download
A single JPG, or a ZIP when there is more than one.
When people use it
Emailing an image to a doctor
Most inboxes reject a folder of DICOM but accept a JPG happily.
Putting a scan in a report or a claim
Word processors and insurance forms take JPG, not DICOM.
Keeping a personal copy you can actually open
A picture you can still view in ten years without special software.
Supported files
- Uncompressed DICOM (implicit and explicit VR, little and big endian)
- RLE lossless compression
- JPEG baseline and extended, decoded by your browser
- Files with a .dcm extension, and DICOM files with no extension at all
- ZIP archives containing a whole study or several series
Limitations
- A JPG is lossy and flat. It keeps no measured values, so it cannot be re-windowed later and is not a substitute for the original file.
- JPEG Lossless, JPEG-LS, JPEG 2000 and deflated transfer syntaxes are not decoded — they need heavy codecs we deliberately do not ship. You will get a clear message instead of a blank screen.
- This is a technical tool. It does not read your scan, does not look for findings and does not produce any diagnosis.
- Very large studies of several hundred megabytes may be slow, because all the work happens on your own machine.
Privacy and security
Processed in your browser — nothing is uploaded
Your files never leave your device. Everything runs inside your browser using JavaScript — there is no upload, no server copy and no queue.
Because nothing is uploaded, there is nothing for us to store or delete. Closing the tab removes the files from memory.
We never put file names, patient identifiers or metadata values into analytics or logs. Product events only count how many files were opened.
If you later choose the paid AI explanation, that is a separate, explicit step: you decide which files to attach and nothing is sent until you confirm.
Frequently asked questions
Does converting to JPG remove patient information?
It removes the metadata, because a JPG produced from a canvas carries none. It does not remove text that the scanner printed into the image itself — check the picture before you share it.
Will I lose quality?
Some. JPG is lossy and stores 8 bits per channel, while a CT slice may hold 12 or 16 bits. For looking and sharing that is fine; for anything clinical, keep the DICOM.
Can I convert a whole folder at once?
Yes. Load everything and choose to convert all images; you get a ZIP back.
JPG or PNG — which should I pick?
JPG for smaller files and email. PNG when you want a lossless copy and file size matters less.