TranslateRocket – Free Multilingual Translation, Unlimited Languages

TranslateRocket makes your site multilingual, and everything it does is free. No word limits, no charge per language, and nothing switched off to push you towards an upgrade — it is not a trimmed-down version of a paid plugin.

You do not need an API key at all. Chrome and Edge on a computer carry a translator that runs on the device itself, and TranslateRocket can drive it: install the plugin, pick your languages, press one button and the site is translated. It costs nothing, needs no account, and the text never leaves your machine. Quality sits below DeepL and the AI models and it works one phrase at a time — so it is the fastest way to a translated site rather than the finest one — and everything it translates is kept, so adding a provider later never repeats the work.

Switching from another translation plugin? Your existing translations come with you. One click imports everything you have already paid for or typed by hand from TranslatePress, Polylang, WPML or Weglot — WPML’s are read straight from its own tables, so the import still works after WPML has been deactivated, and Weglot’s come in from its CSV export.

It detects translatable text as you browse — visible text, link titles, image alt, placeholders, ARIA labels, page titles and SEO meta — and serves each language under its own clean URL prefix (/it/, /de/), friendly to SEO and to page caches.

You translate however you like:

• 🆓 In your browser, with no key — Chrome and Edge translate the whole page, or the whole site, on the device itself. Nothing to sign up for, nothing to pay, nothing sent anywhere. Available both on the live page and on the bulk screen.
• 🖱️ On the live page — switch on the visual editor and click any text to translate it in a small, draggable popup, with Previous/Next, a progress bar and a “skip already-translated” mode.
• 🆓 Free with Google Translate (no key) — every field has a link that opens Google Translate prefilled, so you translate for free on Google’s own site and paste the result back.
• ✍️ By hand, in a clear per-page editor (also inside the post/page screen) with red highlighting for what’s still missing — plus a copy & paste box for bulk Google translation.
• 🤖 With AI — bring your own key for DeepL, OpenAI, Google Gemini, Anthropic (Claude) or Google Cloud Translate. Text is sent only to the provider you choose, only when you ask.

Highlights

• 🔑 No API key required — and not just “by hand”. Chrome and Edge translate the whole site automatically, on your own computer, for free. Or do it by hand in the visual editor, or free with Google Translate, and edit any translation later. There is no signup, no account and no key to create — AI providers are optional and only used if you add one yourself.
• 🌍 Unlimited languages (36 built in), 100% free. Donations welcome, never required.
• ⚡ Built for huge sites: past ~20,000 strings the engine switches by itself to indexed per-page lookups — flat memory and the same render time at 500 or 500,000 strings (load-tested), where map-loading translation plugins hit the PHP memory limit.
• 🖱️ On-page visual editor: click text to translate it in a draggable popup — no admin round-trips.
• 🧩 Interface too: translates theme & plugin interface strings, not just page content.
• 🔗 SEO-ready URLs: translated slugs (e.g. /it/chi-siamo/) and hreflang tags.
• 🚦 Per-page visibility: if a page has no equivalent in a language, redirect it, show a custom message, or 404 — per page, per language.
• 🎌 Flexible language switcher as a shortcode [translaterocket_switcher], a Gutenberg block, or a widget — inline, dropdown, or a scrollable bar with ‹ › arrows for many languages — with original SVG flags that render everywhere (including Windows). Show a switcher on desktop only, on mobile only, or both, to style a different menu for each.
• 📥 One-click import of your existing translations from TranslatePress, Polylang, WPML or Weglot — WPML’s are read straight from its tables, so the import works even after WPML is deactivated.
• 🛒 WooCommerce aware: product and category slugs per language, the AJAX mini-cart and JS strings translated too, and customer emails rendered in the language the order was placed in.
• 👀 Preview mode: review new translations or a fresh import on the real pages while visitors still see the default language — publish with one click when ready.
• 📂 Built for scale: searchable, sortable page list for sites with hundreds of pages.
• ✅ You stay in charge — every machine translation can be reviewed and edited by hand. Translations live in your own database.

Languages

Translate your site into the languages your visitors actually speak: Spanish, French, German, Italian, Portuguese and Brazilian Portuguese, Dutch, Polish, Russian, Ukrainian, Turkish, Romanian, Greek, Arabic, Hindi, Indonesian, Vietnamese, Thai, Chinese, Japanese, Korean — 36 languages ship built in, and you can add unlimited custom ones (any language code works). The plugin’s own admin interface is translated into nine languages besides English: Japanese, Spanish, German, French, Brazilian Portuguese, Italian, Dutch, Russian and Polish.

Need a hand?

Want a professional multilingual setup or a custom feature? Help is available as a service from the author — see the plugin’s “Help & Feedback” screen.

External services

This plugin can connect to third-party services, but only with your involvement:

• AI translation providers (optional). If you add an API key and ask to translate, the relevant text is sent to the provider you selected so it can return a translation. No text is sent until you configure a provider and trigger a translation. Providers and policies:
  • DeepL — service: https://www.deepl.com/en/pro , privacy: https://www.deepl.com/en/privacy
  • OpenAI — service: https://platform.openai.com , privacy: https://openai.com/policies/privacy-policy/
  • Google Cloud Translation / Gemini — service: https://cloud.google.com/translate , privacy: https://policies.google.com/privacy
  • Anthropic (Claude) — service: https://www.anthropic.com , privacy: https://www.anthropic.com/legal/privacy
• Google Translate (manual, always available). Every editor offers a per-phrase link and a copy-paste box that open Google Translate (translate.google.com) prefilled, so you translate on Google’s own site and paste the result back. This is just a convenience link — your browser, not the plugin, contacts Google. Service: https://translate.google.com , terms: https://policies.google.com/terms , privacy: https://policies.google.com/privacy
• Optional one-click Google auto-fill (off by default). A site owner can opt in (the TRROCKET_AUTO_GOOGLE constant / the trrocket_auto_google filter) to let the server fetch a translation from Google’s free endpoint with one click. This uses an undocumented endpoint and is best-effort, so it is disabled out of the box and the plugin never calls it on its own. For dependable automatic translation use the official AI providers below.
• translaterocket.com support ticket (optional, on request). The Diagnostics screen has a form that opens a support ticket for you. It sends nothing until you fill it in and press Send, and what it sends is exactly what the page shows you: your name, your email address (so the answer can reach you), your subject and message, your site address and the plugin version, plus the technical report if you leave that box ticked. The report never contains API keys. To prove the request really comes from your site and not from a spam robot, the support site then makes one request back to your site’s home URL with a one-time token. Nothing else is transmitted, nothing is stored on your site, and if you would rather not use it the same page still offers the copy-and-paste route. Service: https://translaterocket.com , privacy: https://translaterocket.com/privacy-policy/
• translaterocket.com (optional). The “Help & Feedback”, “Request customization”, “Send feedback” and “Get tips & updates” links open translaterocket.com in your browser with your site’s domain in the URL. Nothing is sent automatically — these are links you choose to click. Service: https://translaterocket.com , privacy: https://translaterocket.com/privacy-policy/