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World's largest classroom
Master any topic.Built for your mind.
LearnLens Studio
YouTube meets learning science.
800 million videos, structured the way your brain retains.
Free during beta • No credit card required
Why LearnLens Studio
YouTube's best content.
Structured for your brain.
LearnLens Studio curates and organizes the world's best educational videos into learning paths designed for retention.
Curated by clarity
We rank teachers by how well they explain, not by views or subscribers.
Scaffolded learning
Concepts build on each other, from foundations to advanced topics.
Active recall
In-video quizzes at optimal moments to cement what you've learned.
How it works
Learning designed for retention.
Every feature in LearnLens Studio is built on cognitive science—how your brain actually learns and remembers.
Best teachers, ranked
Teaching clarity over view counts. Educators who explain the way your brain processes.
Distraction-free
We've trimmed the intros so you can focus. Only the teaching moments.
Structured for retention
Foundations first, then complexity. Your brain builds on what it knows.
Practice built in
Active recall at the right moments. Science shows you'll retain more.
Start learning
What do you want to learn today?
Enter any topic. We'll build your personalized course in minutes.
Or try an example
Or browse by subject
Curated learning paths
Featured courses
Start learning in minutes
Bite-sized courses to master fascinating concepts.
Questions
Frequently asked questions
Authentic Connection Beats Synthetic Perfection.
The Persona Effect: Real educators use emotion, humor, and eye contact to build trust. AI avatars lack authenticity—students tune out.
Cognitive Hygiene: AI "reads the slide," overloading your brain. Humans use Dual Coding—speaking + complementary visuals—doubling retention.
Concrete Accuracy: No visual hallucinations. Just real artifacts, maps, and evidence that anchor concepts in reality.
The 'Moneyball' Approach: An All-Star Cast for Every Concept.
"Moneyball" Optimization: No teacher is perfect at everything. We curate the single best explanation for each concept—best-in-class quality, every time.
Attention Resets: Switching speakers triggers your brain's orienting reflex, preventing boredom and keeping focus razor-sharp.
Zero-Fluff Precision: Only the teaching moments. No intros, ads, or filler—just high-density learning that respects your time.
Every Feature Backed by Peer-Reviewed Research.
Segmentation & Coherence: Content broken into focused chunks. Extraneous material removed. You learn faster when information is digestible.
Retrieval Practice: Quizzes during learning—not just at the end. Active recall strengthens memory far more than passive reviewing.
Cognitive Load Optimization: Minimal UI distractions. Your working memory focuses on learning, not navigating complex interfaces.
Learning Outcomes Over Watch Time.
vs. YouTube: No searching, no filtering, no ads. Just pure teaching segments with pedagogical sequencing and retrieval practice.
vs. Coursera/Udemy: No fixed catalog. Learn anything on-demand—niche topics, cutting-edge tech, customized to your exact needs.
vs. Playlists: Playlists aren't courses. We extract teaching segments, sequence by prerequisites, and add active learning techniques.
Master Concepts in Your Timeframe.
The Promise: You will master what you set out to learn, within your time constraints. Structured paths designed for comprehension and retention.
Intelligent Scaffolding: AI builds a logical dependency tree. Master prerequisites before tackling advanced concepts—simple to complex.
Surgical Segmentation: Extract exact teaching moments. Zero non-educational noise—intros, outros, sponsors removed automatically.
Achievable Mastery in a Single Sitting.
The "Deep Work" Window: 45 minutes hits your biological peak for focus—deep enough for mastery, short enough to prevent burnout.
Psychological Closure: Finishing a module delivers a tangible "win" that triggers motivation for the next session.
Narrative Context: Modules teach cause-and-effect, turning disconnected facts into deep comprehension.