Explore a container image

Enter an image from Docker Hub or another public registry. We fetch metadata, show a reconstructed Dockerfile, and let you browse layer files on demand.

On Docker Hub, we open the most recently pushed tag when you omit a tag. You can pick another tag on the next page.

Public images only.

How images and layers work

Each command in a Dockerfile adds a new layer on top of the existing image.
If a file is deleted in a later layer, it can still be accessed in an earlier layer.
ENV and ARG values in the Dockerfile are published in image metadata, even when they were only used at build time.
If a .git directory is in the image, Docker Explorer exposes an embedded gitweb view so you can browse that repository from the layer file listing.
.dockerignore hides files from the Docker image build, but they may still be present in the git repository if .git is not ignored by .dockerignore.