koter84

wpDefaultPrivate makes all your posts private when you publish them.
At first the changes are only in the front-end and are not saved to the database, this way you can still use statuses like draft, pending and future. 
When the status of a post changes to published it is instead changed to private. After the initial “publish” you can change the post-status to public if you would like some posts to be public.
by default private posts and pages are not visible for all users, this plugin has settings to make private pages visible for all logged-in users
bugs and feature-requests can go to: <a href="https://github.com/koter84/wpDefaultPrivate/issues" rel="nofollow ugc">GitHub</a> or <a href="https://wordpress.org/support/plugin/wpdefaultprivate" rel="ugc">WordPress</a>
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wpDefaultPrivate

WordPress plugin to make posts private by default

Rob Scott

Creates a ‘Coming Soon’ page that will show for all users who are not logged in. Useful for developing a site on a live server, without the world being able to see it. This is an ad-free fork of the great Under Construction plugin by Jeremy Massel.

Eazy Under Construction

Creates a 'Coming Soon' page that will show for all users who are not logged in

wpDefaultPrivate vs Eazy Under Construction