offline.translator

What Happens on Your Screen, Stays on Your Device.

# offline.translator ### AI-Powered Local Webpage Translation with Chrome AI and Gemini Nano Translate webpages directly on your device using Chrome's built-in AI. Improve difficult passages with Gemini Nano, inspect original text context, and enjoy a privacy-first reading experience without relying on a developer-hosted translation server. --- ## Why offline.translator? Most translation extensions send webpage content to external translation services. offline.translator takes a different approach. By leveraging Chrome's built-in AI capabilities, webpages can be translated locally on your device, helping you protect privacy while maintaining a fast and seamless reading experience. ### Key Benefits * AI-powered webpage translation * Local processing with Chrome AI * Privacy-first design * Gemini Nano translation refinement * Original source context inspection * Side panel workflow that stays out of your way * No developer-hosted translation server --- ## Quick Start 1. Open any `http` or `https` webpage. 2. Open the offline.translator side panel. 3. Select the source language and target language. 4. Start translation. 5. Use **Optimize** or enable **Auto Optimize Translation** for improved wording and readability. ### Important To use Gemini Nano Optimization, first enable: `chrome://flags/#prompt-api-for-gemini-nano` Then relaunch Chrome. --- # Main Features ## 1. AI-Powered Local Webpage Translation offline.translator uses Chrome's built-in Translator API to translate webpage content directly on your device. Unlike traditional translation extensions, webpage content does not need to be routed through a developer-operated translation server. ### Why this helps * Better privacy for sensitive content * Fast translation using local AI capabilities * Reduced dependency on external services * Seamless reading experience inside Chrome --- ## 2. Gemini Nano AI Translation Refinement Some content requires more than direct translation. Technical documentation, research papers, legal text, financial analysis, and expert articles often benefit from a second AI-assisted refinement pass. Gemini Nano can improve: * Clarity * Readability * Translation quality * Wording accuracy * Natural expression This is especially useful when a translation is understandable but still feels too literal or awkward. ### Important Translation refinement is optional. Basic translation works without Gemini Nano. To enable refinement, Chrome's Prompt API must be enabled through: `chrome://flags/#prompt-api-for-gemini-nano` --- ## 3. Source Context Inspection Hover over translated content to view the original source segment and surrounding context. ### Why this helps * Compare source and translated text instantly * Verify difficult or ambiguous passages * Improve confidence when reading professional content * Better understanding of technical and academic material --- ## 4. Glossary Support (Coming Soon) Define preferred translations for product names, technical terminology, brand names, and organization-specific vocabulary. ### Benefits * Consistent terminology across pages * Improved translation quality for specialized content * Easier comparison between original and translated text * Better reading experience for technical documentation --- ## 5. Privacy-First Local Processing offline.translator is designed around local-first processing. User preferences are stored locally in the browser, and translation results can be reused locally to improve future reading sessions. ### Why this helps * Better privacy protection * Greater control over your data * Reduced reliance on external services * More trustworthy reading experience --- # Built on Chrome AI offline.translator leverages the latest Chrome AI technologies, including: * Translator API * Prompt API * Gemini Nano * On-device AI processing By combining local translation and local AI refinement, offline.translator delivers a modern AI translation experience while keeping webpage content on your device. --- # No Translation Server offline.translator does not operate or depend on a developer-hosted translation server. Translation is performed using Chrome's built-in AI capabilities directly on your device. This approach provides stronger privacy, greater transparency, and more control over your browsing experience. --- # Recommended Usage ## Casual Reading * Open a webpage * Start translation * Continue reading as additional content loads ## Technical Documentation * Start with standard translation * Enable Gemini Nano refinement * Inspect source context when needed * Use glossary support for consistent terminology ## Research and Academic Reading * Translate the article * Use AI refinement for complex passages * Compare source and translated content when accuracy matters ## Privacy-Sensitive Content * Keep translation local * Avoid external translation services * Use Chrome AI capabilities directly on your device --- # When Gemini Nano Refinement Is Most Useful Gemini Nano refinement provides the greatest benefit for: * Technical documentation * Software development content * Research papers * Legal and policy documents * Financial analysis * Business reports * Expert blogs * Professional articles In these scenarios, AI-assisted refinement can significantly improve readability and translation quality. --- # Before Using Gemini Nano Enable: `chrome://flags/#prompt-api-for-gemini-nano` Relaunch Chrome, then return to offline.translator to use Gemini Nano translation refinement. ### Read Any Website with Chrome AI Translate webpages with Chrome AI and Gemini Nano — locally, privately, and without a translation server.