Lang Forge – Multilingual, Translation & hreflang SEO

Lang Forge makes a WordPress site multilingual. Add as many languages as you need, link every post, page, product or custom post type to its translations, and give each language its own address: a subdirectory such as /fr/, a query parameter, a subdomain, or a separate domain per language.

Search engines and visitors find the right version. Lang Forge prints hreflang tags, including the x-default entry, for every translated URL and generates an hreflang sitemap. Visitors switch language with a widget, a shortcode or an item in the admin bar, shown as flags, native language names or both. Right-to-left languages (Arabic, Hebrew, Persian, Urdu, Kurdish) are supported.

Texts of your active theme are picked up automatically: a string that passes through WordPress translation functions appears on the String Translation screen when it is shown on the front end, so you translate it there without editing .po files. To list the texts of other plugins, add their text domains under Settings → String Auto-Registration Domains. A glossary keeps brand and product names consistent. Terms can be marked Do Not Translate, and when you save a translation Lang Forge lists the glossary terms it does not follow.

On a WooCommerce store you can translate product content, product categories and tags, and store strings such as cart and checkout labels from the same Language panel you use for posts.

Moving from another multilingual plugin

The built-in migration tool reads the data of WPML, Polylang or TranslatePress and recreates translated posts and their language links, string translations, taxonomy translations and your language URL structure. The old plugin stays installed and untouched until you confirm the result. For sites built around WPML there is also a WPML compatibility layer with icl_object_id(), icl_get_languages(), icl_get_current_language() and icl_get_default_language(), so integrations written against WPML run without edits. One difference to check: a translation that is still a draft counts as “no translation” for visitors until you publish it.

Free

• Unlimited languages
• Language URLs in four formats: directory, query parameter, subdomain, domain mapping
• Manual translation linking for posts, pages and custom post types
• String translation with automatic registration of strings
• Language switcher: widget, shortcode, admin bar
• hreflang tags with x-default and an hreflang sitemap
• Glossary with Do Not Translate terms
• WooCommerce product, category, tag and store string translation
• WPML compatibility layer
• REST API and WP-CLI commands
• One-click migration from WPML, Polylang and TranslatePress
• Right-to-left support

Pro add-on (separate plugin, not part of this download)

• AI translation with translation memory, paid with Forge credits
• Visual editor and frontend translation
• Elementor and ACF fields in the visual editor
• Content diff and translation QA
• Analytics dashboard
• XLIFF and CSV import and export
• Bulk AI translation, translator roles, media and comment translation, live preview

The free plugin runs on your own site and contacts no external service.

Documentation: https://langforgewp.com/docs/
Comparison with other multilingual plugins: https://langforgewp.com/compare/

External services

Every outbound request this plugin makes is listed below. Activating it, and opening its screens, contacts nobody.

This plugin contacts no external service. Translation, the language switcher, string translation, hreflang and migration run on your own site, and the plugin has no analytics, no telemetry and no licensing calls of its own. AI translation and quality checks belong to the separate Lang Forge Pro add-on, which describes the services it uses in its own documentation.