krazykoder

Freedom Permalinks can help you to change permalinks to any format you want. 
Update slug structure, change domains, remove/add slashes or add extensions (.html, .php or anything you want) etc.
<pre><code>PS. While this gives you freedom to play with permalinks, you should know that you have to make those link structures work with your themes yourself.
</code></pre>
For example if your theme is installed on subdomain1.domain.com, changing permalink to subdomain2.domain.com will break the existing links and you have to move your theme manually to subdomain2.domain.com to make it work.
<pre><code>Things you must know before trying this plugin:
1. It's best suited for custom/smaller themes.
2. Always create backup of your database before trying this plugin.

Examples:
Some permalink examples to just give you some idea to what we can do with "Freedom Permalinks".
Permalink : http://subdomain-anydomain2.com/blog/%post_id%/%post_slug%
Becomes : http://subdomain-anydomain2.com/blog/23/this-is-smaple-page-post

Permalink : http://subdomain.com/blog/%post_id%/%post_slug%.html
Becomes : http://subdomain.com/blog/23/this-is-smaple-page-post.html

Permalink : http://subdomain.com/blog/%post_slug%.html
Becomes : http://subdomain.com/blog/this-is-smaple-page-post.html

Permalink : http://subdomain.com/blog/%post_category%/%post_slug%.html
Becomes : http://subdomain.com/blog/health/this-is-smaple-page-post.html

Permalink : http://nes.subdomain.com/news/%post_category%/%post_slug%-%post_id%
Becomes : http://nes.subdomain.com/news/mobile/some-ceo-retired-23
</code></pre>

Freedom Permalinks

Change permalinks for standard or custom post types while using any domain name you want.

John James Jacoby

Felix Arntz

Ryan McCue

Jonny Harris

Turn your WordPress Multisite installation into many multisite networks, surrounding one global set of users.
<ul>
<li>Reveals hidden WordPress Multisite functionality.</li>
<li>Includes a “Networks” top-level Network-Admin menu.</li>
<li>Includes a List Table for viewing available networks.</li>
<li>Allows moving subsites between networks.</li>
<li>Allows global administrators to create new networks with their own sites and domain arrangements.</li>
<li>Group sites into logical networks using nearly any combination of domain (example.org) and path (/site/).</li>
</ul>

WP Multi Network

Thanks for keeping this plugin updated to work with the latest versions of WordPress. The plugin continues to work great. Much appreciated!

Latest Update

Considering to move all my small WP installation to multinetwork 

amazing plugin!

This has enabled me to use two separate domains in a multi-site for testing before roll-out to production.

Use this for staging


I just started playing with Multi Networks and having all my projects (subfolders and different domains together) is just brilliant. 


Nice!

Muti Perfect

A WordPress plugin that provides a network management interface for global multisite administrators.

Freedom Permalinks vs WP Multi Network