DICOM (Digital Imaging and Communication in Medicine) is a standard for medical image storage and communication. It is used by doctors to share medical images with each other and with their patients. It was developed by the Institute of Electronic and Electrical Engineers (IEEE), the American Medical Association (AMA), and the National Institute of Standards and Technology (NIST).

DICOM image viewer is a free Chrome extension to view DICOM images. It can view DICOM images from a website, a file, or a URL. It does not need to download the image. You can view the images in a variety of formats, including GIF, JPEG, PNG, BMP, TIFF, and many more. You can adjust the image to fit the screen.