Is there a way to install the command adduser on other distros?

In ubuntu, there is a command adduser, I want to install it in other distros.
How could I install?

You have asked a rather broad question.

Here’s one way:

  1. Get the source code.
  2. Ask in the support venues of those other distros how to install it.

Since this is not a topic about improving or contributing to Ubuntu, closing.