English Dashboard for Administrators Only
Keeps the dashboard in English for administrators while the site and everyone else's dashboard stay in the site language, handy for developers supporting non-English sites.
Snippet Library
Multilingual snippets for WordPress
Snippets for multilingual sites: language switchers, translated strings and per-language behavior with WPML, Polylang and similar plugins. For sites that serve readers in more than one language.
Quick Dashboard Language Switch in the Admin Bar
Adds a language menu to the toolbar so each user can switch their own dashboard language in one click, using the languages installed on the site.