Displays dual language subtitles on streaming platforms.
Users
1,000
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#29K
#24K among extensions
Version
3.0.2
updated 3 Sep 2026
Users
monthly, 14 months
Latest, 15 Oct 2026:1,000 usersMove the mouse over the chart for any month
Ratings count
monthly, 14 months
Latest, 15 Oct 2026:3 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About DualSub
DualSub - Dual Language Subtitles for Streaming
Transform your streaming experience with intelligent dual-language subtitles and AI-powered context analysis
🎬 What DualSub Does
DualSub revolutionizes how you watch streaming content by displaying original and translated subtitles simultaneously. Perfect for language learners, international viewers, or anyone who wants to enjoy content in multiple languages at once.
Supported Platforms: Netflix • Disney+
✨ Key Features
🌐 Smart Translation
• Choose from 5 translation providers (Google, Microsoft, DeepL, OpenAI)
• Automatic fallback ensures uninterrupted viewing
• Batch processing reduces API calls by 80-90%
🎨 Complete Customization
• Flexible layouts: Top/Bottom or Left/Right arrangements
• Adjustable font sizes, spacing, and positioning
• Hide platform subtitles to avoid overlap
• Precise timing controls with offset adjustment
🤖 AI Context Analysis (Revolutionary Feature)
• Click any word in subtitles for instant cultural, historical, and linguistic explanations
• Powered by OpenAI GPT or Google Gemini
• Perfect for understanding idioms, cultural references, and complex language nuances
• Cached results for efficient learning
🌍 Global Accessibility
• Interface available in 6 languages
• Support for 50+ translation languages
• Works seamlessly across different regions
🎯 Why Install DualSub?
📚 For Language Learners:
• See original dialogue alongside translations
• Get AI explanations for cultural references and idioms
• Learn naturally while enjoying your favorite shows
🌏 For International Viewers:
• Understand content in your native language while hearing original audio
• No more choosing between accuracy and comprehension
♿ For Accessibility:
• Enhanced subtitle options for better viewing experience
• Customizable appearance for visual comfort
🎭 For Content Enthusiasts:
• Appreciate original performances while understanding every nuance
• Discover cultural context behind dialogue and references
🚀 Easy Setup
1. Install DualSub
2. Visit Netflix or Disney+
3. Click the DualSub icon to enable dual subtitles
4. Optional: Set up AI Context with your OpenAI/Gemini API key
5. Enjoy enhanced viewing with intelligent subtitles!
🔒 Privacy & Performance
• Minimal data usage with smart caching
• Secure API connections
• No permanent data storage
• Optimized for smooth streaming performance
🆓 Free Features
• Dual subtitle display on Netflix and Disney+
• Multiple free translation providers
• Complete customization options
• Multi-language interface
💎 Premium Features (Optional)
• AI Context Analysis (requires API key)
• Premium translation providers (DeepL API, OpenAI)
• Advanced batch processing optimization
Transform your streaming experience today - Install DualSub and discover content like never before!
⚠️ Note: This extension is not affiliated with Netflix, Disney+, or any streaming platform. All trademarks belong to their respective owners.
https://*.disneyplus.com/*https://*.netflix.com/*https://*.media.dssott.com/*https://*.dssedge.com/*https://*.nflxvideo.net/*https://translate.googleapis.com/*https://edge.microsoft.com/*https://api-free.deepl.com/*https://api.deepl.com/*https://aiplatform.googleapis.com/*and 10 more
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