Natural translations, not word by word
Translate emails, documents, product descriptions or messages into English, Brazilian or European Portuguese, Spanish, French, German, Italian, Japanese, Chinese and more. The translator keeps names, numbers and your formatting, and reads like it was written in the target language.
PDFs
Open a PDF and its text is read right in your browser; only the text goes to the translator, in parts of up to 1,000 words, so documents up to 15,000 words work. You get plain translated text: paragraphs are kept, layout and images are not. Scanned PDFs need OCR PDF first.
Credits
Each run uses credits for what the model actually costs, about 1 credit per 1,000 words. A free account gets 50 credits a month; Plus and Pro include more.
Private
Your text is sent over HTTPS to the AI model on Cloudflare's network, processed and returned. It isn't stored by UtilNest, logged by the AI gateway or used to train models.
How this works
An AI language model (Gemma 4 on Cloudflare Workers AI) translates the text into the chosen language, keeping names, numbers, formatting and line breaks. It ignores any instructions inside the text. The source language is detected automatically, and regional variants (Brazilian or European Portuguese, Simplified Chinese) are respected, so spelling and vocabulary match the readers you are writing for.
Frequently asked
Which languages can I translate into?
20: English, Portuguese (Brazil and Portugal), Spanish, French, German, Italian, Dutch, Polish, Romanian, Swedish, Turkish, Russian, Ukrainian, Arabic, Hindi, Indonesian, Japanese, Korean and Chinese. The source language is detected.
Can I translate a PDF?
Yes. Open it with the PDF button: the text is extracted in your browser (the file is never uploaded) and translated in parts, up to 15,000 words. The result is plain text with the original paragraphs. For a scanned PDF, run OCR PDF first.
Is it free?
With a free account you get 50 credits a month, enough for roughly 50,000 words. Plus and Pro include more, and credit packs top them up.
Is my text private?
Your text is sent over HTTPS to the AI model on Cloudflare's network, processed and returned. It isn't stored by UtilNest, logged by the AI gateway or used to train models.
Is it good enough for legal or medical documents?
Use it to understand them, but have official or high-stakes documents translated by a professional.
Sources
- Cloudflare Workers AI — Gemma 4 26B A4B (model card, limits and pricing)
- Cloudflare Workers AI — Pricing (per-model unit prices and neurons)
Reviewed Oct 19, 2026 · test vectors fixtures/tools/text/ai-translator/