If you have multiple WordPress installations using the same database, this plugin makes it possible for one 
installation to run off the user table of another installation. Main user table selection is completely configurable 
through the options panel, and permissions of the users can be different from blog to blog.
When you switch the user table from one blog to another, all level 10 users (administrators) of the blog you are 
switching to are also made level 10 users on the blog in which you installed the plugin. Only a level 10 user can 
make the switch.
After you switch, you should visit the Users section of the Admin panel to setup permissions for all other users. 
They will be listed as “No role for this blog” in WordPress 2.3, or with an empty Role column under “All Users” in WordPress 2.5/2.6.
Note that ideally the blog you are switching should not have more than the default admin user. Content created by all other users 
will automatically be assigned to more or less random users from the main blog when you switch (based on <code>user_id</code>). Future versions 
of the plugin may support migrating existing users and content.

Shared Users

Have your blog run off the user table of another blog, in the same database.

Amrit Anandh

Kuppuraj

infinitewp

<a href="https://infinitewp.com/" title="Manage Multiple WordPress" rel="nofollow ugc">InfiniteWP</a> allows users to manage unlimited number of WordPress sites from their own server.
Main features:
<ul>
<li>Self-hosted system: Resides on your own server and totally under your control</li>
<li>One-click updates for WordPress, plugins and themes across all your sites</li>
<li>Instant backup and restore your entire site or just the database</li>
<li>One-click access to all WP admin panels</li>
<li>Bulk Manage plugins & themes: Activate & Deactive multiple plugins & themes on multiple sites simultaneously</li>
<li>Bulk Install plugins & themes in multiple sites at once</li>
<li>and more..</li>
</ul>
Visit us at <a href="https://infinitewp.com/" title="Manage Multiple WordPress" rel="nofollow ugc">InfiniteWP.com</a>.
Check out the <a href="https://www.youtube.com/watch?v=s35ZoW95cnU" rel="nofollow ugc">InfiniteWP Overview Video</a> below.
<iframe loading="lazy" title="InfiniteWP - Multiple WordPress Management" width="750" height="422" src="https://www.youtube.com/embed/s35ZoW95cnU?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
Credits: <a href="http://prelovac.com/vladimir" rel="nofollow ugc">Vladimir Prelovac</a> for his worker plugin on which the client plugin is being developed.

InfiniteWP Client

We have 100 sites that we manage, update, review and monitor on a daily, weekly and monthly basis for customers.  Infinitewp makes this so simple to manage.  You can instantly see needed updates, You can setup staging sites to manage updates before updating live sites which is essential for our highly custom ecommerce sites.  

Support is top notch.  We have had 2 issues.  One was a 2 second fix where we simply did not RTFM and missed the step.  The other issue was recent and had to do with the recent update in WP All in One Security in which a specific setting was blocking access.  The support team could have taken the easy way and said - this setting is blocking our access, you have to leave it unchecked and not use it, but the infinitewp team did things the right way and updated their plugins to work around the security setting.  

This plugin is well worth the price.  It saves us hours every week and we highly recommend. 

BEST tool for any wordpress dev who manages sites

I have been using InfiniteWP for years, and highly recommend. It provides a quick way to see what sites have updates, and a way to target updating only specific sites/plugins/core. I've tried others, like ManageWP, but they lack features I need, like being able to only update specific plugins, or get a list of all sites I just updated so I can log into each, and check the updates didn't break anything. Most of my clients' sites use WP Engine's Smart Plugin Manager, and I use InfiniteWP so I can ensure the automatic updates keep running (they've stopped on quite a few of my sites, and InfiniteWP is how I track when this happens so I can get the automatic updates running again). I have InfiniteWP set up to send me an email of all sites that have updates daily. Asvin has provided fast, awesome support anytime I've had an issue over the years - which has only happened a couple of times when dealing with more advanced settings.

A must-have to manage site updates

Install this plugin on unlimited sites and manage them all from a central dashboard. This plugin communicates with your InfiniteWP Admin Panel.

Shared Users vs InfiniteWP Client