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DICOM File Format

DICOM Medical Image category

DICOM is the ISO standard for medical imaging — CT/MRI slices carry patient metadata, window/level display parameters and pixel data in one file. Only uncompressed transfer syntaxes are supported.

Typical use: Convert an uncompressed DICOM slice to PNG or JPG for slides and reports, with patient/study metadata dumped alongside.

About the DICOM format

DICOM is the ISO standard for medical imaging — every CT/MRI slice bundles patient metadata, display parameters (window centre/width) and pixel data. The converter renders uncompressed transfer syntaxes through proper window/level mapping, exactly as a workstation would show it.

Patient and study metadata (name, ID, modality, date) are exported alongside the image as a text sidecar. Compressed transfer syntaxes (JPEG inside DICOM) are out of scope and reported clearly.

Strengths

  • ✓ Correct window/level greyscale mapping
  • ✓ Metadata exported as a text sidecar
  • ✓ MONOCHROME1/2, RGB and rescale handled

Limitations

  • ✗ Compressed transfer syntaxes unsupported
  • ✗ Multi-frame volumes take the first frame
  • ✗ Huge CT stacks render slice by slice
Structure
DICM preamble + tag dataset
Types / schema
8/16-bit, MONOCHROME1/2, RGB
Compatibility
Horos, RadiAnt, workstation exports
Best for
Slides, reports, teaching files

Convert DICOM to…

7 direct directions, sorted A–Z; 🔥 marks popular targets.

Frequently asked questions

What is a DICOM file?

DICOM is the ISO standard for medical imaging — CT/MRI slices carry patient metadata, window/level display parameters and pixel data in one file. Only uncompressed transfer syntaxes are supported.

How do I convert DICOM files online?

Pick a target format from the "Convert DICOM to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.

Is it safe to convert DICOM files here?

Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.

Which formats can DICOM convert to?

This page lists all 7 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.