Powerful Features to Make You Fluent — Faster

SixFluent transforms everyday videos into immersive, interactive language lessons. No boring textbooks. Just real content + smart AI tools to build listening, vocabulary, and speaking skills in English or Chinese.

Install Chrome Extension Free → Start Learning Now

Discover What Makes SixFluent Different

Bilingual Subtitles Powered by AI
  • Instant, accurate dual subtitles (your native language + English/Chinese) on any YouTube.
  • Real-time translation that matches context and natural speech.
  • Adjustable timing and font size for comfortable reading.
  • Click any word to see definitions, pronunciation, and examples.
One-Click Flashcard Creation
  • Save useful words and phrases instantly while watching — no pausing or switching apps.
  • Auto-capture context from the video (sentence and timestamp).
  • Built-in spaced repetition for long-term retention.
  • Review flashcards anytime in your personal dashboard.
AI Conversation Practice from Video Content
  • Turn what you just watched into real speaking drills with an intelligent AI tutor.
  • Get follow-up questions based on the exact video scene.
  • Receive natural feedback on your spoken responses.
  • Practice pronunciation, fluency, and confidence — repeat until it feels natural.
Video-First Immersive Learning
  • Learn from content you already enjoy — dramas, vlogs, tutorials, movies — instead of scripted lessons.
  • Use short clips or full episodes for flexible sessions.
  • Accelerate natural acquisition with massive input variety.
  • Track progress tied to real-world media, not artificial exercises.
Seamless Chrome Extension Experience
  • One-click install, works instantly on your favorite sites.
  • No separate app needed — learn right in your browser.
  • Cloud sync across desktop and laptop.
  • Lightweight, fast, and privacy-focused (no intrusive tracking).
Multi-Language Pair Support
  • Built for high-demand language pairs to help you reach fluency efficiently.
  • Learn English from Chinese, Japanese, Korean, French, German, Spanish, Portuguese.
  • Learn Chinese from English, French, German, Spanish, Portuguese, Japanese, Korean.
  • More language pairs and improvements coming soon.
Progress Tracking & Insights
  • See real growth without guesswork.
  • Daily and weekly stats on words saved, speaking time, and videos completed.
  • Confidence scores and weak-spot highlights.
  • A 6-month fluency roadmap based on your habits.
Free Core Access, No Ads
  • Start powerful learning today without paying or interruptions.
  • All main features free forever.
  • Optional premium upgrades for advanced analytics and unlimited AI sessions.

How SixFluent Turns Videos into Fluency

1. Install & Activate Add the free Chrome extension and open any video.
2. Watch with Smart Subtitles Enable bilingual mode — read, listen, and save new language instantly.
3. Practice & Speak Jump to AI chat for targeted questions and speaking drills from the content.

Real Learners, Real Results

Join 2,000+ active users turning videos into daily language wins.
Average session: 42 minutes of enjoyable, effective learning. Users report faster listening comprehension and speaking confidence in 3–6 months.

Ready to Make Every Video a Language Lesson?

No credit card needed. Install in seconds and start for free.

Install Chrome Extension Now → Explore on Web

SixFluent features: AI bilingual subtitles, one-click flashcards, video-based AI speaking practice, and multi-language support for learning English or Chinese. Master a language in 6 months using your favorite YouTube, Netflix, or Bilibili videos. Free Chrome extension for immersive, effective language learning.