Viewer

Viewer may refer to:


 * File viewer, application software that decodes and displays the data in a computer file
 * Image viewer, a computer program capable of displaying digital images
 * Pocket Viewer, a range of personal digital assistants marketed by Casio
 * A person who is engaged in remote viewing
 * Slide viewer, a device for viewing slides of reversal film
 * Television viewer, television industry term for a person watching television
 * ViEWER, a computer program developed for studying visual perception in a virtual 3D environment
 * Waveform viewer, a software tool for viewing the signal levels of either a digital or analog circuit design