DuoSub

Watch streaming video with fully customizable dual subtitles — supports 100+ languages on Netflix, YouTube, Disney+ and more.

Watch your favorite shows effortlessly with dual subtitles in any two languages. 🔎 Who It's For If a movie only ships with an English CC track, DuoSub adds a second subtitle line in your own language, translated naturally by Google or AI so it actually reads like your language. ✨ What's New in the Latest Version • 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 intros for faster playback 🔧 How It Works 1. After installation, click the extension icon to open settings. 2. Make sure to select English (CC) 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!