Dual Subtitles — Language Learning Player

Dual subtitles for YouTube & Netflix. Interactive words, auto-pause learning mode, phonetics, and 1-click Anki export.

⚡ Dual Subtitles: Master foreign languages naturally with synchronized bilingual subtitles on YouTube, Netflix, Coursera & Udemy (Manifest V3). Learn languages effortlessly while watching your favorite movies, TV shows, documentaries, and online courses. Dual Subtitles combines instant interactive word translations, smart auto-pause, phonetic pronunciation, and 1-click Anki export into one ultra-lightweight player. 🌟 KEY FEATURES: 🚀 1. Multi-Platform in One Single Extension • Works seamlessly on YouTube, Netflix, Coursera, and Udemy — no need to install separate extensions for each website. • Unified subtitle controls, hotkeys, and vocabulary deck across all streaming platforms. 🔒 2. Unlimited & 100% Private (Zero Tracking) • 100% local browser sync: your watch history, video titles, and saved words NEVER leave your machine. • No accounts, no logins, and zero cloud surveillance. • Completely unlimited: no daily video caps, no VIP memberships, and no monthly paywalls. ✨ 3. Interactive Word Hover & Audio Pronunciation • Hover over any unfamiliar word in the subtitle: 1. The video smoothly auto-pauses so you don't miss dialogue. 2. See instant definitions and IPA phonetic transcriptions (/rɪˈzɪl.jəns/). 3. Click 🔊 to listen to authentic native pronunciation. 4. Click "+ Save to Vocabulary" to create a spaced-repetition card in 1 click. • Moving your mouse away resumes video playback effortlessly. 🗂️ 4. 1-Click Anki SRS Export (RFC 4180 CSV) • Export your saved vocabulary directly into Anki or Quizlet with UTF-8 BOM encoding (prevents character corruption in Excel and Anki). • Exports 5 essential study fields: Front Word, Back Translation, Phonetics, Context Sentence, and Video Source URL. • Direct "Copy to Clipboard (TSV)" button for instant pasting into Anki's Import dialog. 🎨 5. 4 PRO Cinema & OLED Subtitle Presets • 🎬 Netflix Studio Amber: warm cinematic amber contrast. • 🌌 OLED Cinema Sapphire: deep contrast tuned for dark OLED screens. • ⚡ Cyberpunk Neon: vibrant cyan and gold accents. • 🔲 High-Contrast Master: maximum clarity for fast dialogue and dark scenes. • Real-time video preview stage with timing sync offset slider (-1500ms to +1500ms). ⚡ 6. Ultra-Lightweight Bundle (~80 KB) • Pure native web standards: zero heavy frameworks, zero remote telemetry scripts. • 80 KB total package size (over 190x lighter than bloated 15 MB alternatives). • Instant video player loading without dropping frames or lagging playback. ⌨️ KEYBOARD SHORTCUTS: • Alt + Shift + D : Toggle dual subtitles on / off instantly • Hover word : Auto-pause video & inspect word card • Click 🔊 : Play audio pronunciation 🛡️ PRIVACY & SECURITY: This extension operates 100% locally inside your browser. It does not collect, transmit, or sell any personal data, watch history, or browsing activity. ⚖️ LEGAL DISCLAIMER: This independent extension is not affiliated with, endorsed by, or sponsored by YouTube, Google LLC, Netflix, Inc., Coursera, Inc., or Udemy, Inc. All trademarks belong to their respective owners.