cli/docs/reference/commandline/save.md

docker save

Save one or more images to a tar archive (streamed to STDOUT by default)

Aliases

docker image save, docker save

Options

Name	Type	Default	Description
-o, --output	string		Write to a file, instead of STDOUT
--platform	stringSlice		Save only the given platform(s). Formatted as a comma-separated list of os[/arch[/variant]] (e.g., linux/amd64,linux/arm64/v8)