Master
Ace Your FAANG Interview
Transform 2-hour DSA & system design tutorials into 2-minute summaries. Get AI-powered insights and interactive learning on every video.
You're Grinding
But Not Learning
Every engineer preparing for FAANG interviews faces the same brutal reality:
2-Hour Videos
Watching entire system design tutorials takes forever. You're already time-constrained with evenings and weekends.
Low Retention
You watch, understand in the moment, then forget everything by interview day. Passive learning doesn't stick.
No Structure
Random video hopping with no clear roadmap. You're flying blind trying to figure out what to learn next.
Hard to Review
Need to revisit load balancing concepts? Good luck scrubbing through that 90-minute video again.
Sound familiar?
// You're not alone. Thousands of engineers face this daily.
Watch LearnLens
Transform Learning
See how engineers use LearnLens to master DSA and system design 3x faster
Interview Prep,
Quantified
Time Saved
2-hour videos → 2-min summaries
Engineers
Preparing for FAANG daily
Videos
DSA & system design
Faster Learning
Compared to passive watching
Join engineers at Google, Meta, Amazon, and Microsoft
// They're already using LearnLens to prepare smarter
The LearnLens
Difference
See how studying DSA and system design transforms with AI
Without LearnLens
Your Current Reality
No Structure
Just watching, hoping something sticks
Zero Retention
Forget 70% within 24 hours
Wasted Time
2+ hours per video × 100s of videos
With LearnLens
The New Way
Structured Learning
AI organizes key concepts for you
Active Recall
Remember 75% more long-term
70% Time Saved
30 minutes vs 2+ hours per video
Everything You Need
To Ace Your Interview
Purpose-built features for software engineers preparing for FAANG DSA and system design interviews
Instant Video Summaries
Transform 2-hour DSA and system design tutorials into structured 2-minute summaries with key concepts, timestamps, and actionable insights.
- Save 70% of study time
- Jump to specific topics instantly
- Review concepts in minutes
AI Interview Tutor
Ask questions about any concept. Get instant, context-aware explanations as if you had a senior engineer next to you.
- Clarify confusing concepts immediately
- Get multiple explanation angles
- Practice articulating technical ideas
Knowledge Verification
AI-generated quizzes test your understanding in real-time. Identify gaps before your actual interview.
- Active recall strengthens memory
- Identify weak areas immediately
- Build interview confidence
Visual System Diagrams
Complex architectures automatically converted into clear, interactive diagrams. See the big picture instantly.
- Understand complex systems faster
- Visual learning for better retention
- Interview-ready architecture knowledge
All Features. Zero Cost During Beta.
// We're building this for engineers like you
Recommended
4-Week Learning Path
A proven roadmap used by engineers to master DSA and system design for FAANG interviews.
DSA Fundamentals
Advanced DSA
System Design Basics
Real-World Systems
Follow This Path With LearnLens
Use LearnLens on any YouTube DSA or system design tutorial to accelerate your learning at each stage.
Loved By
Chrome Users
5.0 rating with 15 reviews on Chrome Web Store
View all 15 reviews
Rahul Subramaniam
"Found it really useful to learn new content. Everything from consuming new lectures on AI to watching chess tournaments and learning about the moves made by the players. Love it!!"
Stan Huseletov
"What a remarkable extension! It makes every youtube video a fun learning, which has me retaining knowledge like never before!"
Leonardo Gonzalez
"What a great way to engage with informative video content. It takes passive viewing and transforms it into active learning."
Arleif Braganza
"One of those simple things in life that you didn't realise you needed, and now can't do without. So simple, yet so effective."
Anuj Jadhav
"The knowledge check is super useful and keeps me on track without having to rewatch parts. I also like how the key insights are laid out so neatly, it saves a lot of time scrolling back and forth and organizes the video for me."
Rahul Subramaniam
"Found it really useful to learn new content. Everything from consuming new lectures on AI to watching chess tournaments and learning about the moves made by the players. Love it!!"
Stan Huseletov
"What a remarkable extension! It makes every youtube video a fun learning, which has me retaining knowledge like never before!"
Leonardo Gonzalez
"What a great way to engage with informative video content. It takes passive viewing and transforms it into active learning."
Arleif Braganza
"One of those simple things in life that you didn't realise you needed, and now can't do without. So simple, yet so effective."
Anuj Jadhav
"The knowledge check is super useful and keeps me on track without having to rewatch parts. I also like how the key insights are laid out so neatly, it saves a lot of time scrolling back and forth and organizes the video for me."
Frequently Asked
Questions
Everything you need to know about using LearnLens for FAANG interview prep
LearnLens transforms lengthy DSA and system design tutorials into concise summaries with key concepts, timestamps, and interactive quizzes. Jump directly to specific topics like "Dynamic Programming" or "Load Balancing" without watching entire videos. The AI tutor answers your questions instantly, helping you understand complex concepts 3x faster.
Yes! LearnLens is currently 100% free during our beta phase. All features including AI summaries, Q&A, knowledge checks, and visual diagrams are available at no cost. Install the Chrome extension and start learning smarter today.
LearnLens works with any educational content, but it's particularly powerful with interview prep channels like NeetCode, System Design Interview, Tech Dummies, Gaurav Sen, and coding tutorial channels. It also works great with university lectures on algorithms and data structures.
On average, engineers save 70% of their study time. A 2-hour system design video can be reviewed in 30 minutes with LearnLens summaries. Instead of spending 20+ hours per week passively watching videos, you can actively learn the same material in 6-8 hours with better retention.
Absolutely. We only process the video content you choose to analyze. We don't track your browsing history, and all data is handled securely. Your learning data stays private. Check our privacy policy for full details.
Nope! Just install the extension and start learning immediately. We respect your privacy and don't require any sign-up or personal information to get started.
Still have questions?
Reach out to us directly or try LearnLens yourself—it's free!
Start Preparing
The Smart Way
Join 200+ engineers who are mastering DSA and system design with AI-powered learning.
100% free during beta.
// Master System Design. Ace Your FAANG Interview.