NIS-Elements Viewer is a free standalone program to view image files and datasets. It offers the same powerful view and image selection modes as the NIS-Elements core packages: Volume View with 3D Rendering, Tile View for Time, Z and Multipoint datasets, and Slice View for Z and Time datasets. The NIS-Elements Viewer also has the same look and feel as the NIS-Elements core packages. For example, calibrations, and binary layers (thresholded objects) created in the core package also port over to the NIS-Elements Viewer. In addition, image header information and experimental information such as time interval, Z step and device parameters are accessible (Windows version only). Saving ND datasets to TIFF files is also built into the NIS-Elements Viewer.