Free online DICOM viewer. Open a .dcm file or drag a whole folder to view CT/MRI series and metadata in your browser — window/level with CT presets (Hounsfield units), zoom, multi-frame & series slice scrolling with cine play-back, and on-image distance & area measurements in mm and µm. Human-readable tag names, linked OP/OPT fundus + OCT viewing, compare two DICOM files for tag differences, DICOM tag lookup, and export to a searchable HTML report. 100% client-side: your files never leave you