<p>This plugin allows you to switch your WordPress installation to use any of the<br />
languages available on <a href="http://translate.wordpress.org" rel="nofollow ugc">GlotPress</a></p>
<p>Some of the features:</p>
<ul>
<li>No gettext compiler required!</li>
<li>Does all the dirty work from editing <code>wp-config.php</code> to downloading the right files</li>
<li>Can switch between versions. Available: stable and dev</li>
<li>Uses GlotPress api!</li>
</ul>
<div class="embed-vimeo" style="text-align: center;"><iframe loading="lazy" src="https://player.vimeo.com/video/19433386" width="750" height="422" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe></div>


Localize WordPress

Easily switch to any localization from GlotPress

moxu

<p>I created this plugin because i wanted this feature (to set a specific locale for frontend) out of my themes. I’m assuming i’m not the only one who would preffer to have the backend en_US only, so here it is…</p>
<p>It’s not tested with other versions of wordpress except 3.4, but it should work without a problem at least from 3.0 onwards.</p>
<p>This plugin assumes you’re not using a translation plugin , so, if you have bilingual or multilimgual blogs, use with caution (and let me know … especially with qtranslate 🙂 ).</p>
<p>I’t not multisite tested/ready yet.</p>


LanguageBack

Simple , minimalistic plugin that lets you set different locale for frontend and backend.

Localize WordPress vs LanguageBack