qtranslate-xt

qTranslate-XT (eXTended) - reviving qTranslate-X multilingual plugin for WordPress. A new community-driven plugin soon. Built-in modules for WooCommerce, ACF, slugs and others. Maintained by qtranslate on GitHub, where it has earned 601 stars from the community.

It's actively developed around i18n, php, qtranslate-x, and is a solid reference for anyone building with these tools.