Louy Alakkad

This plugin gives you the ability to run the site in a language (Arabic for example) and use the admin panel in another (like English).
Just go to Settings » General and choose your language.

Admin Locale

This plugin allows you to change the language of the admin panel without changing the whole site language.

Gesundheit Bewegt GmbH

Artem P.

Define the second site language, which will be used if the installed plugins don’t have translations for the first site language.
If the plugin does not have a translation file in a specific language, it will use the default translation (English). But in some cases it will be more useful to load another language other than English. This plugin allows to define this second language to be used when the first default language is not available.
Usage examples: 
– German formal (Sie) language by default and German (Du) language as second option. 
– Portuguese language by default and Spanish language as second option.

Second default language

Define the second site language, which will be used if the installed plugins don't have translations for the first site language.

Admin Locale vs Second default language