Josh Eaton

A small plugin that lets you “hide” the front-end of a site, all front-end requests of logged-in users are redirected to the WP Dashboard (filterable).
Useful mainly for developers, if you’re developing a site and want to give users access to see the dashboard while you’re working on the front-end. Also can be used if you have a site with no front-end and always want users to stay on the dashboard.
Filters included:
<ul>
<li><code>rfe_redirect_caps</code>: Control capabilities required to bypass redirect, lets Administrators access front-end by default (default: <code>manage_options</code>) </li>
<li><code>rfe_redirect_url</code>: Change the redirect URL (default: <code>admin_url()</code>)</li>
</ul>

Redirect Front-end

A small plugin that lets you "hide" the front-end of a site, redirecting to the WP Dashboard.

Manesh Timilsina

Nilambar Sharma

WP Concern

This plugin allows you to customize admin interface of your WordPress site. Several options are available in a single plugin.
<h4>Features</h4>
<ul>
<li>Change logo in admin header</li>
<li>Custom CSS style for Admin and Login pages</li>
<li>Hide update nagging bar</li>
<li>Replace ‘Howdy’ with your own text</li>
<li>Rearrange Logout menu</li>
<li>Confirmation on Logout</li>
<li>Hide WordPress Default Dashboard widgets</li>
<li>Add new custom widget in Dashboard</li>
<li>Hide or customize admin footer</li>
<li>Change logo in Login page</li>
<li>Add background image in your Login page</li>
<li>Set maximum number of Revisions or disable completely</li>
<li>Change Default Email address and Name for sending emails</li>
</ul>
If you like this plugin, please <a href="https://wordpress.org/support/plugin/admin-customizer/reviews/" rel="ugc">rate and review</a>.

Admin Customizer

A plugin for customizing your admin panel.

Redirect Front-end vs Admin Customizer