Greg Ross

Sergey Biryukov

David Decker

Rami Yushuvaev

Dion Hulse

Pascal Birchler

Alex Kirk

Pedro Mendonça

Gilbert Pellegrom

Andrew Nacin

Brad Touesnard

Daisuke Takahashi

Ryan McCue

Dominik Schilling

Nikhil Chavan

Iain Poulson

javorszky

Yoav Farhi

Anton Timmermans

tobifjellner (Tor-Bjorn “Tobi” Fjellner)

A5hleyRich

Jesús Amieiro

Xavi Ivars

Henrik Björklund

孙锡源

Samuel Sidler

Petya Raykovska

Mattias Tengblad

Erica Varlese

Vlad

Chantal Coolsma

Ken Chan

Many open source projects span regions, countries and dialects and need to support a variety of translations, GlotPress is here to help you collaborate online with your translators to ensure your users see your software in their native language.
For more information about GlotPress, feel free to visit the channels listed below in the “Communication” section.
So who should use GlotPress?
Any developer of software that uses <a href="https://www.gnu.org/software/gettext/" rel="nofollow ugc">gettext</a>, like WordPress theme or plugin authors. But that’s just the start, anyone who uses a gettext bases system can use GlotPress to help their translators collaborate.
This plugin wouldn’t be possible without all the hard work that has gone in to the standalone version of GlotPress and we’d like to thank all those who contribute to it.
<h4>Support</h4>
For basic support questions, please use the <a href="https://wordpress.org/support/plugin/glotpress/" rel="ugc">WordPress.org support forums</a>.
If you have a bug or feature request please visit <a href="https://github.com/GlotPress/GlotPress/issues" rel="nofollow ugc">the issues list</a> to help improve it in future.
If you’d like to work on something and there’s not currently an issue for it, open a new issue and describe your proposed change before jumping into coding.
<h4>Communication</h4>
<ul>
<li><a href="https://github.com/GlotPress/GlotPress" rel="nofollow ugc">GitHub Home</a></li>
<li><a href="https://glotpress.blog/" rel="nofollow ugc">Blog</a></li>
<li><a href="https://chat.wordpress.org/" rel="nofollow ugc">WordPress Slack</a>: #glotpress (for development only)</li>
</ul>

GlotPress

We are using Glotpress as part of our translation process and in general the community loves it.



Best translation solution, even for non-WP projects

Great work!

Glad to know that Glotpress is available as plugin. Thanks!



Awesome resource!

GlotPress is a WordPress plugin to let you set up your own collaborative, web-based software translation tool.

unclego

Lets you have your backend administration panel in english or any installed language, even if the rest of your blog is translated into another language. Language preferences can be set per user basis in user profile screen.
Tested on MultiSite.
Deals with frontend ajax requests
Notice: 
After release of WordPress 4.7 this plugin is a bit obsolete.
In WordPress 4.7 users are able to select their preferred locale (language) when editing their profile. Plugin add exact same functionality to pre 4.7 WordPress.
I still maintain it for people with outdated WordPress sites. And the plugin is still usefull for sites with outdated plugins that not obey get_user_locale(). 
<a href="https://make.wordpress.org/core/2016/11/07/user-admin-languages-and-locale-switching-in-4-7/" rel="nofollow ugc">More info</a>

Admin Language Per User

a must have for multilingual sites

Switch your backend administration panel in any installed language per user basis.

GlotPress vs Admin Language Per User