container-diff is a tool for analyzing and comparing container images. container-diff can examine images along several different criteria, including Docker Image History, Image file system, Image size, Apt packages, RPM packages, pip packages, npm packages. These analyses can be performed on a single image, or a diff can be performed on two images to compare. The tool can help users better understand what is changing inside their images, and give them a better look at what their images contain.

WWW: https://github.com/GoogleContainerTools/container-diff
