SelectTranslate: Web & PDF Translator | Free

Tracking since Apr 1, 2026.

Changelog

• May 21, 2026
  description

  🎉 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. 👍👍👍
  
  
  🌐 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, Disney+, and TED. The AI Subtitle feature enables instant translation even for videos without subtitles.
  
  👩‍💻 Online Meeting Translation:
  Supports real‑time translation in Zoom, Microsoft Teams, and Google Meet — including subtitle translation, chat translation, and input translation  — to make cross‑language communication smoother and more efficient.
  
  🥇 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.  ✅
  
  ⌨️  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, GPT, 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：[email protected]

  🎉 【AI Expert】 and 【Termbase】 are now live! Built-in popular experts and termbases are ready to use, and custom experts and terms are also supported, making translation for specialized domains more accurate and professional!👍👍👍
  
  🌐 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 Translation:
  (1) Completely free PDF translation function, offers rapid translation of foreign language documents while preserving the original document format and layout. It features bilingual side-by-side translation to meet your daily PDF document translation and reading needs.
  (2) PDF Plus - The advanced PDF translation function is designed specifically for translating academic papers and various professional PDF documents. Utilizing advanced multimodal AI + OCR vision processing technology, it accurately recognizing text, formulas, images, tables, and scanned documents, effectively solving the problems of inaccurate recognition and layout disorder.
  
  📖 ePub e-book translation:
  With SelectTranslate, you can easily convert various foreign language ePub eBooks into bilingual versions, which are perfectly compatible with various e-book readers such as Kindle, helping you break down language barriers and enjoy high-quality global literary resources.
  
  📚 More Document Translation Features:
  Also supports translating Word, TXT, HTML, Markdown, and subtitle files (SRT/ASS).
  
  📺 Video Subtitle Translation:
  Supports bilingual subtitle translation on major global streaming platforms such as YouTube, Netflix, Disney+, and TED. The AI Subtitle feature enables instant translation even for videos without subtitles.
  
  👩‍💻 Online Meeting Translation:
  Supports real-time translation for Zoom, Microsoft Teams, and Google Meet online meetings (voice subtitle translation, chat message translation, chat input translation), making cross-language communication smoother and more efficient.
  
  🥇 Optimal Translation:
  An industry‑first approach that runs multiple translation models in parallel and uses a scoring model to intelligently score the outputs and automatically select the best translation, significantly improving both accuracy and reliability. ✅
  
  💥 Comic Translation:
  Deeply adapted for selected comic websites, breaking language barriers with intelligent recognition and in-place translation for a smoother reading experience!
  
  🏞️ Image Translation:
  Supports quick translation of webpage images by right-click or hover, with the translated text fitted in place so reading stays uninterrupted. Local image upload translation is also supported, making multilingual image reading much easier.
  
  ⌨️ Input Translation:
  Simply type text into webpage input fields for quick translation. Works seamlessly across Google, Reddit, Twitter, Discord, and many other online input scenarios, significantly improving cross‑language communication and writing efficiency.
  
  🆃 Selection Translation:
  Simply highlight words or text to translate, giving you a convenient and lightweight translation experience. Word translation: part of speech, phonetic symbols, pronunciation, example sentences, comprehensive learning. Provide detailed translation explanations based on the word’s contextual usage.
  
  🖱️ Hover Translation:
  Hover your mouse over a webpage paragraph, press the shortcut key, and the translation will appear below the original text. On-demand translation and bilingual comparison make foreign language learning more flexible and effective.
  
  👩‍🎓 AI Expert:
  AI translation prompts tailored for different domains, with dedicated roles and translation rules that make specialized content more accurate and professional.
  
  🗂️ Termbase:
  Stores and manages standard translations of specialized terms across different scenarios to keep terminology accurate and consistent.
  
  🪩 20+ Integrated Translation Services/Models:
  GPT, Gemini, DeepSeek, Google Translate, and more.
  
  📩 Service & Support:
  If you encounter any issues or have suggestions during use, feel free to contact us via our service email.
  Email: [email protected]

• May 21, 2026
  short_description

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

  Free AI translator for bilingual Web, PDF, papers, video, meetings, images & ebooks. 20+ top models (GPT, DeepSeek).

• May 21, 2026
  name

  SelectTranslate - Web & PDF Translator

  SelectTranslate: Web & PDF Translator | Free

• Apr 16, 2026
  description

  🎉 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. 👍👍👍
  
  
  🌐 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, Disney+, and TED. The AI Subtitle feature enables instant translation even for videos without subtitles.
  
  👩‍💻 Online Meeting Translation:
  Supports real‑time translation in Zoom, Microsoft Teams, and Google Meet — including subtitle translation, chat translation, and input translation  — to make cross‑language communication smoother and more efficient.
  
  🥇 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.  ✅
  
  ⌨️  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：[email protected] 
  
  🎯 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.

  🎉 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. 👍👍👍
  
  
  🌐 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, Disney+, and TED. The AI Subtitle feature enables instant translation even for videos without subtitles.
  
  👩‍💻 Online Meeting Translation:
  Supports real‑time translation in Zoom, Microsoft Teams, and Google Meet — including subtitle translation, chat translation, and input translation  — to make cross‑language communication smoother and more efficient.
  
  🥇 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.  ✅
  
  ⌨️  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, GPT, 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：[email protected]

• Apr 16, 2026
  permissions

  tabs, activeTab, contextMenus, storage, cookies, webNavigation, declarativeNetRequest

  tabs, activeTab, contextMenus, storage, declarativeNetRequest

Permissions & access

Permissions

tabsactiveTabcontextMenusstoragedeclarativeNetRequest

Host access

<all_urls>

Screenshots

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