Introduction

SelectTranslate is a free, user‑friendly, innovative, and open AI translation extension. It offers a wide range of intelligent and practical translation features, including optimal translation, bilingual webpage translation, PDF translation, video subtitle translation (YouTube, Netflix), online meeting translation (Zoom, Teams, Meet), ePub ebook translation, input translation, selection translation, and hover translation. Powered by 20+ top-tier AI translation models - including DeepSeek, OpenAI, Gemini, Claude, Qwen, and GLM - it supports translation in 100+ languages. SelectTranslate helps you break language barriers and explore the world’s knowledge with ease.

Features

• 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: 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 chat translation, input translation, and subtitle 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.
  
  
• Innovative Input Translation: Translate webpage input field content with one click, intelligently selecting the best translation for a smooth, input-method-like experience. Whether you're chatting on Discord, talking to an AI platform, or searching on Google, typing in a foreign language becomes effortless.
  
  
• 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.
  
  
• Termbases: Used to store and manage standardized translations of specialized terms across different contexts, ensuring accuracy and consistency in terminology translation.
  
  
• 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. 👍👍👍
  
  
• 20+ Translation Models： Integrated with over 20 translation models, include Google Translate, Microsoft Translator, DeepSeek, OpenAI (ChatGPT), Gemini, Claude, Qwen, GLM, Doubao, Kimi, Grok, Azure, Mistral, MiniMax, DeepL, Baidu Qianfan, Tencent Hunyuan, SiliconFlow, Tencent TranSmart, Yandex, Ollama, and more. Additional translation models are continuously being added.
  
  

Service & Support

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

Mission of SelectTranslate

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.