List Docker images

List images stored in the current Docker engine with:

docker image ls

Show dangling layers with docker image ls --filter dangling=true, or inspect a specific repository with docker image ls nginx. A tag is only a human-readable pointer; two tags can refer to the same image, and a tag can later point to a different digest.

Use docker image inspect image:tag for metadata and docker system df for disk usage. Remove an image only after checking which containers depend on it:

docker image rm image:tag

Do not delete image storage files by hand. If the list is not what you expect, inspect the active Docker context and registry credentials. Desktop and remote engines have separate image stores.

Sources

• docker image ls CLI reference

• Docker documentation