freeCodeCamp/guide/english/docker/docker-save/index.md

title
Docker save

Docker save

docker save stores a Docker image to a tar archive. It is useful to make an offline backup of an image or transfer an image to a computer in a corporate environment which does not have a direct access to the Internet.

For example, to save the nginx image already in local computer to a file named nginx-backup.tar, the following command can be run:

docker save -o nginx-backup.tar nginx

Or with a specific version:

docker save -o nginx-backup.tar nginx:1.15.5

More Information:

• Docker CLI docs: save