DSmidge

<p>When WP is opened through HTTPS, all local absolute links in content are replaced from HTTP to HTTPS.<br />
Additional hosts can be specified through admin interface (like graph.facebook.com which works on HTTP and on HTTPS).<br />
Options HOME and SITEURL shuld be changed to HTTPS when enabling this plugin.</p>


HTTP to HTTPS link changer by Eyga.net

When WP is opened through HTTPS, all local absolute links in content are replaced from HTTP to HTTPS.

LightPlugins

<p>The plugin forcibly redirects your website to https protocol, keep your website safe and fix the mixed content problems.</p>
<h4>Key Features</h4>
<ul>
<li>Your entire website SSL in one click</li>
<li>Force HTTPS Protocol</li>
<li>Automatic fix mixed content by redirects all links to HTTPS protocol.</li>
<li>A simple lightweight plugin</li>
</ul>


Simple HTTPS Redirect

Good plugin

The plugin forcibly redirects your website to https protocol, keep your website safe and fix the mixed content problems.

HTTP to HTTPS link changer by Eyga.net vs Simple HTTPS Redirect