Set a Different Language for Individual Pages
Adds a "Page language" box to the editor so a single post or page written in another language gets the correct lang attribute (and text direction) for screen readers, spell checkers and search engines.
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.