DuoSub: AI-Powered Dual Subtitles for Streaming

Watch your favorite movies with fully customizable dual subtitles. 100+ languages on Netflix, HBO Max, YouTube, Disney+ and more.

Watch your favorite shows effortlessly with dual subtitles in any two languages. DuoSub adds a second subtitle line in your own language, translated naturally by Google or any AI you like! 🔎 Perfect For 🌍 Watching region-locked content with a VPN Get subtitles in your own language, even when they're unavailable on the streaming service. 📚 Learning a new language Watch with bilingual subtitles to improve listening, vocabulary, and comprehension while enjoying your favorite shows. • Supported Sites: Netflix, YouTube, Disney+, and Streamimdb. • Supported AI translation: ChatGPT, Gemini, DeepSeek 📍 Key Features • Display dual subtitles with support for 100+ languages • Fully customizable subtitle style: font size, color, weight, opacity, and background • Adjustable subtitle position, including its width and height • Works seamlessly in full-screen mode & sped up video • Automatically skip Netflix/HBO Max intros for faster playback 🔧 How It Works 1. After installation, click the extension icon to open settings. 2. Make sure to select CC subtitles in your player. 3. Select your secondary subtitle languages. 4. Dual subtitles will appear automatically after processing. ⚙️ Some Useful Hotkeys • A — Open menu • Q — Toggle the extension on / off • V — Toggle original subtitles • B (short press) — Switch between Google / AI translation • B (hold) — Start AI immersive translation Enjoy!