Just add the following alias to your .bashrc (or .bash_profile in OSX):

alias uglify='docker run --rm -v `pwd`:/workdir -w /workdir semenovp/tiny-uglify:latest'

Its usage: uglify <command> [input files] [options].

These are two obvious commands:

Now your shell is ready to go. For example, do like this:

uglify js --compress --mangle --toplevel --output output.js input.js uglify css --expand-vars --max-line-len 500 --output output.css input.css

docker build --build-arg vcsref="$(git rev-parse --short HEAD)" -t semenovp/tiny-uglify:latest .

Review the sizes of another uglify images retrieved from DockerHub against current one built on Node.js v15.3.0. Note, the original node:alpine is of 37.85Mb / 109Mb.