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Preview of SelectTranslate - Translate Webpage & Document

SelectTranslate - Translate Webpage & Document by SelectTranslate

A free AI translation extension for bilingual translation of websites, PDFs, EPUB eBooks, and video subtitles.

Available on Firefox for Android™Available on Firefox for Android™
5 (1 review)5 (1 review)
16 Users16 Users
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About this extension
🎉 The "AI Experts" and "Termbases" features are now live! They include multiple built‑in experts and termbases, and also support custom experts and terms, making translations in specialized fields more accurate and professional. 👍👍👍

🥇 The industry’s first Optimal Translation:
It runs multiple translation models in parallel and uses an intelligent scoring model to evaluate their outputs and select the best one, significantly improving translation accuracy and reliability. That’s where the name SelectTranslate comes from. ✅

🌐 Bilingual Webpage Translation:
Intelligently identifies and translates webpage content, displaying the translation beneath each original paragraph for a clean, seamless bilingual reading experience. Enjoy barrier‑free access to global knowledge.

📄 PDF Bilingual Translation:
A completely free PDF translation feature that preserves the original document’s format and layout while delivering fast translation of foreign-language content. It also provides a bilingual side‑by‑side reading experience for your daily PDF translation needs.

📕 PDF Plus:
An advanced PDF translation feature designed specifically for academic papers and professional documents. Powered by multimodal AI and OCR-based visual processing, it accurately recognizes complex content such as text, formulas, images, and tables, effectively resolving issues like layout distortion and content recognition errors.

📖 EPUB eBook Translation:
Converts foreign‑language EPUBs into bilingual editions, fully compatible with major e‑readers like Kindle — so you can enjoy the world’s best literature without language barriers.

📚 More Document Translation:
Also supports translating DOCX, TXT, HTML, Markdown, and subtitle formats such as SRT, ASS, LRC, and VTT.

📺 Video Subtitle Translation:
Supports bilingual subtitle translation on major global streaming platforms such as YouTube, Netflix and Disney+, allowing you to enjoy content in its original context with ease.

👩‍💻 Online Meeting Translation:
Supports real‑time translation in Zoom, Microsoft Teams, and Google Meet — including chat translation, input translation, and subtitle translation — to make cross‑language communication smoother and more efficient.

⌨️ Input Translation:
Enter text in any webpage input field and translate it with one click, allowing you to write, reply, and communicate across languages using your native language. Single‑model translation is fast and efficient, while multi‑model optimal translation delivers greater accuracy and reliability.

🆃 Selection Translation:
Select any word or text to trigger an instant pop‑up translation. It provides part of speech, phonetics, pronunciation, and example sentences, and also offers more accurate interpretations by taking the surrounding context into account.

🖱️ Hover Translation:
Hover your mouse over any paragraph on a webpage and press the shortcut key to instantly display the translation right below the original text. Translate only when needed, read in a bilingual format, and make language learning more flexible and effective.

👩‍🎓 AI Experts:
AI translation prompts customized for different domains, defining specialized roles and translation rules to deliver more accurate and professional translations for domain‑specific content.

🗂️ Termbases:
Used to store and manage standardized translations of specialized terms across different contexts, ensuring accuracy and consistency in terminology translation.

🪩 20+ Translation Services/Models Integrated:
Gemini, DeepSeek, OpenAI, Qwen, Google Translate, and more.

📩 Service and Support:
If you have any questions or suggestions during use, feel free to contact us via our service email.
Email address:service@selecttranslate.com

🎯 SelectTranslate’s mission is to enable everyone to read without barriers and to work and communicate across languages using their native language, advancing information equality and making native‑language freedom a reality.
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Permissions and data

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation
  • Access your data for all websites

Optional permissions:

  • Access your data for all websites

Required data collection, according to the developer:

  • Browsing activity
  • Website activity
  • Website content

Optional data collection, according to the developer:

  • Technical and interaction data
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Add-on Links
  • Homepage
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Version
2.4.5
Size
5.58 MB
Last updated
3 days ago (Feb 25, 2026)
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  • translate
  • twitter
  • youtube
  • zoom
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