Vincent Robic

This plugin updates all URLs in the database after moving your site from one domain to another. It is useful for switching between development, testing and production stages.
Why this plugin ? WordPress stores absolute URLs in :
<ul>
<li>posts (including pages and custom post types), drafts</li>
<li>excerpts</li>
<li>medias</li>
<li>custom fields</li>
<li>options (including ‘siteurl’ and ‘home’, in wp_options table)</li>
<li>GUIDs (only for development)</li>
</ul>
When moving your website to a new domain, all these links will point to your old domain name and become outdated.
<h3>Prerequisite</h3>
Before moving the website, consider making a backup of the database. Then, once the site has been moved, you will need to manually update ‘siteurl’ in the ‘wp_options’ table, in order to access the WordPress Administration panel. 
For further information, see https://codex.wordpress.org/Changing_The_Site_URL

UmanIT Update URLs

Updates all URLs in the database after moving your site from one domain to another.

Nimbus Digital

Redirects http://somedomain.tld to http://someotherdomain.tld
Assuming you have 2 or more domains in use for a single WordPress site. This plugin forces the use of only one no matter which is entered in the address bar.
If, for some reason, your host won’t automatically redirect from one domain to another, then this plugin will do it. It checks the URL used to access the site and does a 301 redirect if incorrect.
In theory htaccess should do this, but in my case it didn’t. Perhaps because I am using domain aliases (or CNAMEs) and I wanted to insure that the main one was always in use, even when accessed using old links.

Force Domain Redirect

Forces your Wordpress site to load on the domain registered in the WP admin.

UmanIT Update URLs vs Force Domain Redirect