Dive

Dive is a command-line tool designed to help developers analyze and optimize their Docker/OCI images. It provides a detailed breakdown of an image's layers, allowing users to visualize the contents of each layer and identify changes (additions, modifications, removals) between them. This granular view helps in understanding how an image is constructed and where inefficiencies, such as duplicated files or unnecessary content, might exist. The tool is primarily for developers, DevOps engineers, and anyone working with Docker or OCI images who wants to reduce image size, improve build times, and enhance the overall efficiency of their containerized applications. By highlighting wasted space and providing an "image efficiency" score, Dive empowers users to make informed decisions about their Dockerfile instructions and build processes, leading to smaller, faster, and more secure images. Dive supports various image sources and container engines, including Docker and Podman, and can be integrated into CI pipelines to automate image analysis and enforce size constraints. Its interactive TUI (Text User Interface) allows for easy navigation and exploration of the file system within each layer.