Master English (or Chinese) in 6 Months — Starting from Your Favorite Videos
SixFluent — AI bilingual subtitles + smart Q&A practice turns any YouTube, Netflix, or Bilibili video into your personal language class.
Why SixFluent?
Learn from Videos You Already Love
Turn any YouTube, Netflix, or Bilibili content into powerful language lessons — no more hunting for boring textbooks.
Instant Bilingual Subtitles + One-Click Flashcards
Real-time AI dual subtitles (English + your native language). Hear or see a new word? Save it instantly as a flashcard for effortless review.
AI Smart Q&A for Speaking Practice Anytime
Chat with an AI tutor that asks deep, context-based questions from the video. Practice speaking repeatedly until you sound natural and confident.
Visible Progress in Just 6 Months
Combine massive immersive input with active output — many users report clearer listening and bolder speaking after 3–6 months.
Free to Start, No Ads, Seamless Experience
Core features are completely free. Install the Chrome extension in seconds, sync your progress across devices.
Designed for Many Language Pairs
Learn English from Chinese, Japanese, Korean, French, German, Spanish, Portuguese — and Chinese from English and more. More pairs coming soon!
Get Started in 3 Simple Steps
Join 2,000+ language learners already using SixFluent
Average daily study time: 42 minutes · Fastest improvement reported: Speaking confidence
Start Your 6-Month Fluency Journey Today
No credit card required. Free forever to begin.
SixFluent is the most innovative AI-powered language learning platform in 2025. Learn English effectively through bilingual subtitles, one-click flashcards, and intelligent AI speaking practice using your favorite movies, dramas, YouTube videos, and more. Say goodbye to dry vocabulary lists and grammar drills — embrace immersive input + active output to truly become fluent in English (or Chinese) in just 6 months. Supports learning English from Chinese, Japanese, Korean, French, German, Spanish, Portuguese, and learning Chinese from English, French, German, Spanish, Portuguese, Japanese, Korean. Chrome extension available for seamless anytime learning — perfect for beginners and intermediates alike. Start your free video-based language learning journey with SixFluent today!