PRECISE TRANSLATE · FREE AI TRANSLATION

A world to read.
In your language.

Bilingual webpages, video captions and PDFs, with AI that considers context. No personal model API key needed.

Other browsers / manual install

For Chrome, Edge and Firefox on desktop

precisetranslate.app
Interactive illustration · No data is sent

好奇心,
让世界更开阔。

学习始于一个简单的问题。保持好奇,平凡的一天也能为新想法打开一扇门。

Precise Translate

Learning begins with a simple question. When we stay curious, even an ordinary day can open a door to a new idea.

当语言不再成为障碍,世界便有更多值得发现的事。

The world has more to offer when language is no longer a barrier.

Interactive illustration · No data is sent
Illustrative translation · Review AI results for accuracy

16 translation languagesBilingual readingContext-aware AIYour own glossary

FOR EVERYDAY CURIOSITY

Good ideas travel beyond language.

AI + CONTEXT

More than words. Context.

Contextual translation considers relevant headings, nearby passages or captions to help preserve meaning. Your glossary can guide the translation of specialist terms.

“一点好奇心,能带来意想不到的收获。”

A little curiosity goes a long way.

Illustrative translation · Review AI results for accuracy

Your words. Consistently.

Guide specialist translations with your own glossary, keeping terminology consistent from one passage to the next.

机器学习machine learningPreferred translation

Pricing

Start free. Translate more when you need to.

Choose your translation quota. Pro includes 20 times the monthly Free allowance.

Free

0

  • Existing translation models, webpages, subtitles and PDF features included
  • 1,000,000 tokens per month
  • Resets on the first of each month, Beijing time
Add to Chrome

Pro

$59.99/year

Equivalent to $5.00/month, billed annually

Save 28% with annual billing

  • Existing translation models, webpages, subtitles and PDF features included
  • 20,000,000 tokens per month
  • Resets monthly on your first paid billing anniversary. No rollover.
Subscribe in the extension

Try free for 7 days with 2,000,000 extra tokens. No card required. Your trial ends automatically and you return to Free without a charge.

A paid subscription starts when you purchase it and renews automatically at the selected price and interval. Cancel renewal in Account & Service.

Install or update the extension, open Account & service and sign in to claim your free trial or choose a subscription. Payments are securely processed by Stripe.

Usage counts input plus output tokens. No overage charges.

FAQ

A few things to know

Do I need my own model API key?

No. Precise Translate operates the model connections and currently offers a free usage allowance. Translation requires an account and internet access. The extension tells you when a limit is reached or the service is busy.

Which languages are supported?

Simplified Chinese, Traditional Chinese, English, Japanese, Korean, French, German, Spanish, Portuguese, Russian, Italian, Dutch, Turkish, Vietnamese, Thai and Indonesian. The extension interface is available in Simplified Chinese, Traditional Chinese and English. This website offers 19 language and region options.

Can it translate every YouTube video?

It supports on-demand YouTube videos with available captions. It does not perform speech recognition or support captionless videos or live streams. If captions cannot be retrieved, you can import an existing SRT / VTT file.

What about scanned PDFs and translated PDF exports?

Text-based PDFs are supported; OCR is not. You can export bilingual text, but not a rebuilt translated PDF. Review the reading order of complex layouts. The maximum file size is 50 MiB.

Will it translate every website automatically?

Translation starts with your action by default. Automatic translation requires a separate site setting and permission. A persistent button alone does not start full-page translation. You can stop translation, restore the original or revoke access.

How do I delete data or get support?

Clear local caches, file tasks, glossary entries and usage records separately in the extension. Contact support@precisetranslate.app for server-account deletion or privacy requests. Signing out or uninstalling does not delete your server account.

START WITH YOUR BROWSER

There’s more worth understanding.

Visit the Chrome store, or choose a browser package below.

Add to Chrome

For Chrome, Edge and Firefox on desktop

ChromeVersion 125 or later
Add to Chrome

ZIP · Manual installation

Download ZIPv0.2.9 · 3.5 MiB ↓
How to install
  1. Download and extract the ZIP. Keep the extracted folder.
  2. Open chrome://extensions and enable Developer mode.
  3. Choose Load unpacked and select the extracted folder.
Microsoft EdgeVersion 125 or later

ZIP · Manual installation

Download ZIPv0.2.9 · 3.5 MiB ↓
How to install
  1. Download and extract the ZIP. Keep the extracted folder.
  2. Open edge://extensions and enable Developer mode.
  3. Choose Load unpacked and select the extracted folder.
FirefoxVersion 140 or later

ZIP · Manual installation

Download ZIPv0.2.9 · 3.5 MiB ↓
How to install
  1. Download and extract the ZIP. This package is not signed by Mozilla.
  2. Open about:debugging#/runtime/this-firefox and choose Load Temporary Add-on.
  3. Select manifest.json in the extracted folder. Reload the temporary add-on after restarting Firefox.

Google sign-in only. New accounts require Gmail or Google Workspace. Contact support if you have trouble signing in. Free use is subject to account limits and availability. The Firefox package is unsigned and temporary installations are removed when the browser exits.

  1. 01

    Install the extension

    Visit the Chrome store, or download a ZIP and follow the browser instructions.

  2. 02

    Sign in and choose a language

    Read the privacy policy, sign in with Google and choose a translation language.

  3. 03

    Start exploring

    Open a webpage, video or file and start a translation.