Study notes and mind maps from your
Notlu turns lectures, PDFs and YouTube videos into summaries, flashcards, quizzes and mind maps — in about 30 seconds.
We design intelligent study workflows that turn raw lectures, dense papers, and videos into structured retention decks — quietly, precisely, at speed.
Turn raw chaos into mastery.
From your first audio recording to your final exam revision, Notlu handles the heavy lifting of transcription, synthesis, and flashcard generation so you focus on actual understanding.
Multi-Source Voice & Video Transcription
Transcribes 2-hour audio lectures, YouTube videos, and PDFs with domain-specific accuracy and zero fluff.
Instant Active-Recall Flashcards & Quizzes
Generates 3D flashcards and interactive practice questions mapped directly to your exam syllabus.
Hierarchical Concept & Mind Maps
Visualizes complex multi-variable relationships in clean node trees so difficult topics click immediately.
What students say about Notlu
“Notlu saved my life during anatomy finals. Just record the 2-hour lecture and get a structured summary with active recall flashcards in 30 seconds.”
Alex Rivera
Medical Student, Johns Hopkins
“The transcription accuracy handles complex academic jargon effortlessly. The summaries capture all the nuances without any fluff.”
Sarah Chen
PhD Candidate, MIT
“Notlu's PDF summarizer is a game changer for 60-page case law readings. It extracts holding principles into clean, memorable bullet points.”
James Wilson
Law Student, Harvard
“The mind maps feature is incredible. Seeing enzyme pathways and cellular respiration mapped out visually made the material click immediately.”
Elena Rodriguez
Biochemistry, UC Berkeley
“I drop long YouTube algorithmic lectures into Notlu; it produces timestamped breakdown notes and self-test quizzes in minutes.”
Michael Chang
Computer Science, Stanford
“The spaced-repetition flashcards ensure I review concepts right before forgetting them. My exam scores jumped significantly.”
Priya Patel
Cognitive Science, NYU
“The practice exam quizzes let me pinpoint exactly which organic chemistry reactions I was weak on before walking into the midterm.”
David Kim
Pre-Med Student, Columbia
“Being able to search through all my spoken lecture transcripts in seconds saved me tens of hours during finals week.”
Lucas Hayes
Engineering Student, Georgia Tech
“Notlu saved my life during anatomy finals. Just record the 2-hour lecture and get a structured summary with active recall flashcards in 30 seconds.”
Alex Rivera
Medical Student, Johns Hopkins
“The transcription accuracy handles complex academic jargon effortlessly. The summaries capture all the nuances without any fluff.”
Sarah Chen
PhD Candidate, MIT
“Notlu's PDF summarizer is a game changer for 60-page case law readings. It extracts holding principles into clean, memorable bullet points.”
James Wilson
Law Student, Harvard
“The mind maps feature is incredible. Seeing enzyme pathways and cellular respiration mapped out visually made the material click immediately.”
Elena Rodriguez
Biochemistry, UC Berkeley
“I drop long YouTube algorithmic lectures into Notlu; it produces timestamped breakdown notes and self-test quizzes in minutes.”
Michael Chang
Computer Science, Stanford
“The spaced-repetition flashcards ensure I review concepts right before forgetting them. My exam scores jumped significantly.”
Priya Patel
Cognitive Science, NYU
“The practice exam quizzes let me pinpoint exactly which organic chemistry reactions I was weak on before walking into the midterm.”
David Kim
Pre-Med Student, Columbia
“Being able to search through all my spoken lecture transcripts in seconds saved me tens of hours during finals week.”
Lucas Hayes
Engineering Student, Georgia Tech
“Notlu saved my life during anatomy finals. Just record the 2-hour lecture and get a structured summary with active recall flashcards in 30 seconds.”
Alex Rivera
Medical Student, Johns Hopkins
“The transcription accuracy handles complex academic jargon effortlessly. The summaries capture all the nuances without any fluff.”
Sarah Chen
PhD Candidate, MIT
“Notlu's PDF summarizer is a game changer for 60-page case law readings. It extracts holding principles into clean, memorable bullet points.”
James Wilson
Law Student, Harvard
“The mind maps feature is incredible. Seeing enzyme pathways and cellular respiration mapped out visually made the material click immediately.”
Elena Rodriguez
Biochemistry, UC Berkeley
“I drop long YouTube algorithmic lectures into Notlu; it produces timestamped breakdown notes and self-test quizzes in minutes.”
Michael Chang
Computer Science, Stanford
“The spaced-repetition flashcards ensure I review concepts right before forgetting them. My exam scores jumped significantly.”
Priya Patel
Cognitive Science, NYU
“The practice exam quizzes let me pinpoint exactly which organic chemistry reactions I was weak on before walking into the midterm.”
David Kim
Pre-Med Student, Columbia
“Being able to search through all my spoken lecture transcripts in seconds saved me tens of hours during finals week.”
Lucas Hayes
Engineering Student, Georgia Tech
“Notlu saved my life during anatomy finals. Just record the 2-hour lecture and get a structured summary with active recall flashcards in 30 seconds.”
Alex Rivera
Medical Student, Johns Hopkins
“The transcription accuracy handles complex academic jargon effortlessly. The summaries capture all the nuances without any fluff.”
Sarah Chen
PhD Candidate, MIT
“Notlu's PDF summarizer is a game changer for 60-page case law readings. It extracts holding principles into clean, memorable bullet points.”
James Wilson
Law Student, Harvard
“The mind maps feature is incredible. Seeing enzyme pathways and cellular respiration mapped out visually made the material click immediately.”
Elena Rodriguez
Biochemistry, UC Berkeley
“I drop long YouTube algorithmic lectures into Notlu; it produces timestamped breakdown notes and self-test quizzes in minutes.”
Michael Chang
Computer Science, Stanford
“The spaced-repetition flashcards ensure I review concepts right before forgetting them. My exam scores jumped significantly.”
Priya Patel
Cognitive Science, NYU
“The practice exam quizzes let me pinpoint exactly which organic chemistry reactions I was weak on before walking into the midterm.”
David Kim
Pre-Med Student, Columbia
“Being able to search through all my spoken lecture transcripts in seconds saved me tens of hours during finals week.”
Lucas Hayes
Engineering Student, Georgia Tech
Find your weak spots before the exam does
Notlu writes practice questions from your notes, marks your answers and shows you which topics are not sticking — so your revision time goes where it is actually needed.
What is the primary function of mitochondria?
What is Ohm's Law?
Tap to flipFlashcards built from your own material
One tap turns a set of notes into a study deck. Notlu picks the concepts worth memorising and schedules them with spaced repetition, so you review each card right before you would forget it.
Summaries you can revise from
Upload a PDF, record a lecture or paste a YouTube link. Notlu pulls out the key points, groups them by topic and gives you a structured summary — not a wall of transcript.
Introduction to Quantum Mechanics
Wave-particle duality is a fundamental concept where particles exhibit both wave and particle properties
The Heisenberg Uncertainty Principle states that position and momentum cannot both be precisely determined
Schrödinger's equation describes how the quantum state of a system changes over time
Quantum entanglement allows particles to be correlated regardless of distance
Turn dense notes into a mind map
Notlu reads your notes and draws the structure behind them — how each concept branches, connects and depends on the others. It is the fastest way to see a whole topic at once instead of re-reading ten pages.
Study Smarter, Retain Faster: 6 Powerful AI Engines.
Built for the real student workflow — from recording live lectures to acing final exams.
Live Lecture Recording
Record lectures and seminars with instant multi-speaker transcription and smart bullet summaries.
PDF & Textbook Summarizer
Turn 50-page slide decks and heavy syllabi into clear structured study takeaways in seconds.
YouTube Lecture Breakdown
Paste any video link to extract full transcripts, timestamped notes, and core insights.
Spaced-Repetition Flashcards
Auto-generate active recall study cards scheduled with smart review intervals before you forget.
Practice Exam Quizzes
Generate multiple-choice tests from your notes to diagnose and fix weak spots before test day.
Concept Mind Maps
Transform dense paragraphs into branching concept diagrams to master relationships at a glance.
Real experiences from students who study daily.
How medical, law, and engineering students use Notlu to cut review time and ace exams.
Alex Rivera
Med Student, Johns Hopkins
“Notlu saved me during anatomy finals. I record 2-hour lectures and get a structured summary and active recall flashcards in 30 seconds.”
Sarah Chen
PhD Candidate, MIT
“I process dozens of dense research papers weekly. Notlu cuts my reading time in half and never misses a critical experimental finding.”
James Wilson
Law Student, Harvard Law
“The PDF summarizer turns 80-page briefs and case law into crisp bullet points with key precedents highlighted.”
Elena Rodriguez
Bioengineering, UC Berkeley
“The mind maps feature helped me visualize how all concepts in thermodynamics connect. My exam scores jumped a full letter grade.”
Michael Chang
CS Student, Stanford
“I paste long YouTube algorithm lectures and get instant timestamped notes and practice quizzes to test my understanding.”
Priya Patel
Pharmacy Student, NYU
“Spaced repetition flashcards help me memorize hundreds of drug interactions before exams without cramming or burning out.”
Frequently Asked Questions
Everything you need to know about Notlu.
Yes! You can get started with Notlu completely for free. We offer a generous free tier that includes transcription, YouTube summaries, and PDF analysis. No credit card required.
Notlu transcribes in 95+ languages using current neural speech models, and handles technical terminology and accents well. Accuracy depends on your recording — a phone on the desk beats a phone in a bag.
Absolutely. All your notes, transcripts, and files are encrypted both in transit and at rest. We do not train our models on your private data.
Yes, Notlu can handle long-form content including hour-long lectures, podcasts, and meetings. It breaks them down into digestible summaries, chapters, and key takeaways.
You can upload audio files (MP3, WAV, M4A), PDF documents, and paste YouTube video links. We're constantly adding support for more formats.
Once a note exists, Notlu analyses it and draws a mind map showing how the key concepts branch and connect. It is the quickest way to see the shape of a whole topic before an exam.