WP Translate Engine | Multilingual WordPress plugin with AI

Making a WordPress site multilingual usually means duplicating every page and keeping the copies aligned by hand, or paying a subscription for each language. WP Translate Engine takes a different route: the site stays one, and translation happens on the finished page.

It is the plugin that translates this site: the IT/EN switch at the top right is it.

The plugin reads the page as WordPress outputs it, extracts the text, translates it and stores every translation in an archive. The next time, the translated page is served straight away, without calling the model again.

Every sentence can be reviewed and corrected by hand from the dashboard, and the correction applies wherever that sentence appears. There is a list of terms never to translate — product names, brands — and a find-and-replace tool to make a whole language consistent in one go.

The translation engine is chosen from a menu: DeepL, LibreTranslate, OpenAI and Anthropic models, or an open model running locally through Ollama. Anyone with confidential text, or who does not want pay-per-use costs, can translate the whole site without a single sentence leaving their own server.

Working with local models required the most delicate part of the development: instructions and examples that keep the model on task, and checks that discard unusable answers before they end up online.

A translation Google cannot find is not much use. Each language has its own addresses, with the option of translating the last part of the URL too; pages declare their alternate versions with hreflang tags, and a dedicated sitemap lists all languages. The title and description for search engines are translated as well.

The plugin also works with WooCommerce: catalogue, cart, messages and forms included.

It comes from a concrete need in studio projects: sites with many pages, languages to add quickly, clients who do not want one more subscription. It is also a good example of how I use artificial intelligence in everyday work: not as a special effect, but inside a tool that does one precise thing and can be checked.

Need to take your site into another language? See the service for website and e-commerce development or write to me.