🚀 v2.9 Free & Pro

Libre Translate

Fast, SEO-Optimized Engine

Download FREE Plugin

PRO upgrades are managed securely inside the plugin via Freemius.

📖 Read Documentation
Speed, SEO & Stability

Automated WP Translation. Reimagined.

NorthPublisher Libre Translate connects your website to the powerful, privacy-first LibreTranslate engine. Stop bloating your database with traditional multilingual plugins. Translate the DOM in real-time, scale your WooCommerce store, and conquer international SEO without monthly word-count fees.

Libre Translate Language Switcher

Explore Core Capabilities

Choose Your Tier

Start for free on smaller blogs, or upgrade to PRO inside the plugin to unlock peak performance preloading, WooCommerce stability, and enterprise SEO capabilities.

FREE

Basic Edition

Perfect for smaller sites wanting a fast start with automated translations and no complex setup.

  • ✅ Real-time frontend translation engine
  • ✅ Floating language switcher (9 languages)
  • ✅ URL parameter mode (e.g., ?lang=es)
  • ✅ WordPress proxy fallback for stability
  • ✅ Local browser caching
  • ✅ Basic Performance tuning (Throughput & Intensity)
  • ✅ Built-in Debug mode for diagnostics
Download Free Version
PRO

Professional Edition

$39.95 Lifetime Updates

Unlock ultimate speed and indexing. Built for production sites, Woo stores, and SEO-driven projects.

  • ➕ Everything in Free, plus:
  • ⚡ Peak Performance Preloader: Translate the entire site in the background for zero-wait load times.
  • 🌍 Crucial SEO Subdomains: Route users to native domains (e.g. fr.site.com). Mandatory for global Google indexing.
  • 🔍 Translated SEO Slugs: Auto-translates URLs & meta titles.
  • 🗄️ JSON Dictionary Cache: Ultra-fast disk cache in WP uploads.
  • 🛒 WooCommerce Tools: Advanced observers, cooldowns, and churn protection.
  • 🚀 Coming Soon: Fully-managed, premium LibreTranslate Server access add-on.

Peak Performance Tuning

Achieving top-tier speed requires the right tools. PRO unlocks the ultimate performance combination: The Bulk Preloader and JSON caching.

🚀 The Ultimate Speed Unlock: Resumable Bulk Preloader (PRO)

Don't make your visitors wait for real-time API calls. The PRO preloader is the cornerstone of top-tier performance. It automatically crawls your sitemap and translates your pages in the background. By the time a user visits, the translations are already waiting in a blazing-fast JSON file cache, resulting in 0.1ms load times.

Bulk Cache Preloader Interface

Shared Hosting Mode

Uses smaller, safer API batches (25 strings instead of 100) to drastically reduce memory usage and prevent 504 Gateway Timeouts on limited cPanel/shared hosting.

Available in Free & PRO

Translation Throughput

Controls the base size and frequency of API calls. Choose Conservative for weak hosting, Balanced for typical setups, or Aggressive for strong VPS environments.

Available in Free & PRO

Recommended Settings by Environment

Hosting Type Shared Mode Throughput Intensity
Standard Shared Hosting ON Conservative Normal
Mid-Range VPS (2-4 Cores) OFF Balanced Normal / Turbo
High-End Dedicated (8+ Cores) OFF Aggressive Turbo / Max

SEO & WooCommerce Mastery PRO

Translating standard blogs is easy. Translating dynamic eCommerce stores and making them rank globally requires advanced architecture.

🌍 Crucial for SEO: Subdomains & Native Slugs

Search engines demand dedicated, localized URLs to index your content properly. URL parameters (?lang=es) are not enough for serious ranking. PRO unlocks Subdomain Routing (e.g., es.yourstore.com) and natively translates your URL slugs.

  • Canonical Alignment: Strict 301 redirects ensure search engines always land on the correct language URL.
  • Hreflang Tags: Automatically injects hreflang and x-default links into the header for perfect international targeting.
  • First-Load Speed: Fast Subdomain Paint mode bypasses initial dictionary warmups for instant navigation.

Note: Do not use other SEO plugins to duplicate hreflang tags while this feature is active to avoid conflicts.

🛒 Dynamic WooCommerce Protection

Modern Woo themes inject text via AJAX (cart drawers, popups, variations) long after the page loads. Our Vanilla JS MutationObserver catches and translates these instantly. To prevent infinite API loops, PRO adds:

  • Observer Cooldown: Forces a pause (e.g., 3000ms) between translation passes.
  • Min Segments: Waits until a specific number of new text strings are detected before hitting the API.
  • Skip Noisy Blocks: Ignores high-churn elements (login modals, Google Pay widgets) where ROI is low but API cost is high.

Stop Paying Per Word

Let's look at the real cost of translating a WooCommerce store (approx. 50,000 words) over one year.

12-Month Projected Translation Costs

Solution Approach / Tech Estimated 1-Year Cost
Weglot (Pro Plan) Cloud / SaaS API ~$590 / year (Recurring)
WPML (Multilingual CMS) Database Row Duplication $99 / year (+ DB Hosting)
Libre Translate PRO + VPS Frontend DOM + Self-Hosted API $39.95 (One-Time) + ~$60/yr VPS
Coming Soon: Don't want to host your own server? We will soon offer a fully managed, ultra-fast LibreTranslate API add-on exclusively for our PRO users.

Troubleshooting & FAQ

Built-in developer tools and answers to common setup questions.

🛠️ Developer Debug Tools

If translations aren't appearing, use the built-in diagnostic tools:

  • Append ?nlt_debug=1 to any frontend URL to open the floating Debug Panel and Console logger.
  • In the WP Admin, navigate to the Tools tab and use the "Open Debug on any URL" feature.
  • Use the Test API Connection button in Settings to verify your LibreTranslate server is reachable.

Common Fixes: Check for valid API URLs (no trailing slashes), ensure your firewall isn't blocking CORS requests, and purge your CDN cache (Cloudflare/LiteSpeed) if old JS files are lingering.

Ready to deploy your API?

Read our comprehensive documentation on how to link your API and maximize performance.

Read Full Manual
English
German
Italian
French
Spanish
Portuguese