Stop Studying. Start Watching.
Turn Netflix, YouTube, and any website into your private language tutor. Lingoku highlights words, gives instant AI context, and helps you build real vocabulary — while you stream.
✓ 30-second setup ✓ No signup needed ✓ Works on Netflix & YouTube
YouTube · Netflix · Bilibili · Reddit · Twitter/X · Hacker News · CNN · Any Website
Language acquisition, not language studying
There's a difference between memorizing words and actually acquiring them. Lingoku is built on the science of comprehensible input — the method behind every successful language learner.
i+1 Learning (Comprehensible Input)
We show you content that's just slightly above your current level — challenging enough to grow, easy enough to understand. This is how children acquire their first language, and it works for adults too.
Real Context, Not Flash Cards
You learn words where they live — inside a sentence, inside a story, inside a conversation you actually care about. Context makes words stick 3x longer than rote memorization.
Smart Review at the Right Moment
Lingoku tracks words you've seen and resurfaces them at the optimal interval. You never forget what you've learned, without disrupting your stream.
How Natural Language Acquisition Works
Start your journey to fluency in four simple steps — no boring drills required.
Install
Add to your browser in 30 seconds. No signup required.
Set Your Level
Tell us your goals. We match content to your level for optimal learning.
Watch & Browse
Use Netflix, YouTube, or any website. Immersion language learning happens automatically.
Learn Naturally
Hover for instant translations. Our AI helps you acquire vocabulary in context.
Why Immersion Works Better
Immersion language learning with comprehensible input is the most effective way to acquire a new language. See how we compare:
Real learners. Real results.
"After 3 months with Lingoku, I can watch Japanese business presentations without subtitles. The daily exposure to real content made all the difference — no other app got me here."
Sarah Chen, Marketing Manager
Sarah Chen
Marketing Manager
"I went from understanding nothing on Hacker News to reading technical discussions in Chinese within 2 months. It just clicks when you learn from content you actually care about."
Marcus Johnson, Software Engineer
Marcus Johnson
Software Engineer
"Finally confident speaking English after just 2 months. Traditional methods never worked for me — Lingoku was the breakthrough. Real content, real progress."
Yuki Tanaka, Graduate Student
Yuki Tanaka
Graduate Student
Lingoku works for every stage of your journey
"I know almost nothing"
You don't need a foundation first. Start with beginner-matched content and build vocabulary from day one — the extension guides you through everything.
"I've been learning for years but feel stuck"
This is exactly who Lingoku is built for. Moving from textbooks to real content is the breakthrough moment. Thousands of intermediate learners call it their turning point.
"I'm already advanced — will this help?"
Absolutely. Use it to pick up nuance, slang, regional expressions, and domain-specific vocabulary. Advanced learners use Lingoku to make the jump from "good" to "natural."
Quick answers before you dive in
Start learning in context
Ready to watch your way to fluency?
Join learners who stopped memorizing and started understanding. Lingoku is free to start — no credit card, no signup, just install and go.
✓ Free browser extension
✓ Works on Netflix, YouTube, Reddit & millions of sites
✓ AI adapts content to your exact level
✓ Start in 30 seconds