Dual Subtitles - Learn Languages with YouTube & Netflix

Learn languages with YouTube & Netflix using dual subtitles, bilingual translations, clickable dictionary and flashcards.

Learning languages while watching movies and series is now effortless, fun, and natural! Dual Subtitles brings simultaneous bilingual subtitles, an instant clickable dictionary, smart vocabulary flashcards, and real-time synchronization to movies, TV shows, and videos across the web (including YouTube, Netflix, and all HTML5 video streaming platforms). ✨ KEY FEATURES: 🎬 Built-In Subtitle Search for Movies & Series: - One-click subtitle finder: Simply enter the title of your favorite movie or TV series to search and load subtitles automatically via OpenSubtitles and Cinemeta libraries. - Drag & drop local subtitle files (.SRT or .VTT format) directly into any streaming video player. 📖 Clickable Smart Dictionary, Multilingual Translation & Audio: - Click any word in the subtitle track to instantly see its translation across 12+ languages, parts of speech (noun, verb, adjective), and alternative meanings. - Customize your source and target translation languages (English, Spanish, Turkish, German, French, etc.) anytime from the Settings tab. - Listen to accurate native audio pronunciation using the built-in text-to-speech (TTS) engine. ⭐ Smart Vocabulary Notebook & SRS Flashcards: - Click the ⭐ star icon next to any word you want to master and save it to your personal vocabulary notebook. - Review, filter, search, and export your personal vocabulary list as .CSV, .JSON, or .TXT files anytime. - Practice with 3D spaced-repetition (SRS) flashcards and quick quiz modes to master vocabulary in movie context. ⏱️ Interactive Subtitle Synchronization Desk: - Subtitles out of sync? Open the Sync tab and click the line corresponding to what you just heard; the extension instantly snaps the subtitle timing to that exact video moment! - Pop out the synchronization desk into a dedicated browser tab for dual-monitor or multi-window setups. - Fine-tune delays on the fly with millisecond precision using keyboard shortcuts (G / H for primary, B / N for secondary). 🎨 Fully Customizable Modern Glassmorphic Interface: - Customize subtitle font sizes, text colors, opacity, and shadow styles to match your personal viewing preferences. - Add an optional background contrast box or choose clean Netflix-style strong text shadows. - Intelligent placement ensures subtitles never overlap with native video player progress bars or control menus. 🔒 100% Privacy-Focused: - All subtitle parsing, preferences, and saved words are processed and stored locally on your device. - No personal data or browsing history is ever tracked, collected, or transmitted to external servers.