#1 AI Note Taking App & Study Workspace for Students

Study notes and mind maps from your

Meetings

Notlu is the AI powered note taking app that turns lectures, PDFs and YouTube videos into summaries, flashcards, quizzes and mind maps — in about 30 seconds.

4.9/5 (1,000+ ratings) • 50,000+ students
/ MULTI-MODAL RECOGNITION/ INSTANT AI SYNTHESIS/ ACTIVE RECALL STUDY DECK

We design intelligent study workflows that turn raw lectures, dense papers, and videos into structured retention decks — quietly, precisely, at speed.

100+ Hours Saved Per Student

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.

01

Multi-Source Voice & Video Transcription

Transcribes 2-hour audio lectures, YouTube videos, and PDFs with domain-specific accuracy and zero fluff.

02

Instant Active-Recall Flashcards & Quizzes

Generates 3D flashcards and interactive practice questions mapped directly to your exam syllabus.

03

Hierarchical Concept & Mind Maps

Visualizes complex multi-variable relationships in clean node trees so difficult topics click immediately.

Capabilities

Everything you need to master your courses

Document AI

PDF Lecture Notes

Transform slides, syllabi, and multi-page textbooks into structured summaries.

AI Study EngineNotlu
Speech-to-Text

Voice & Audio Transcripts

Record live lectures or study discussions with accurate speech recognition.

AI Study EngineNotlu
Video to Notes

YouTube Video Notes

Turn educational YouTube videos into clear summaries with timestamps and key takeaways.

AI Study EngineNotlu
Spaced Repetition

Active Recall Flashcards

Auto-generate question and answer card decks ready for spaced repetition practice.

AI Study EngineNotlu
Exam Prep

Practice Quizzes

Test comprehension with tailored multiple-choice and conceptual practice questions.

AI Study EngineNotlu
Visual Graph

Interactive Mind Maps

Explore node-based concept maps that connect complex topics and academic hierarchies.

AI Study EngineNotlu
Document AI

PDF Lecture Notes

Transform slides, syllabi, and multi-page textbooks into structured summaries.

AI Study EngineNotlu
Speech-to-Text

Voice & Audio Transcripts

Record live lectures or study discussions with accurate speech recognition.

AI Study EngineNotlu
Video to Notes

YouTube Video Notes

Turn educational YouTube videos into clear summaries with timestamps and key takeaways.

AI Study EngineNotlu
Spaced Repetition

Active Recall Flashcards

Auto-generate question and answer card decks ready for spaced repetition practice.

AI Study EngineNotlu
Exam Prep

Practice Quizzes

Test comprehension with tailored multiple-choice and conceptual practice questions.

AI Study EngineNotlu
Visual Graph

Interactive Mind Maps

Explore node-based concept maps that connect complex topics and academic hierarchies.

AI Study EngineNotlu
Document AI

PDF Lecture Notes

Transform slides, syllabi, and multi-page textbooks into structured summaries.

AI Study EngineNotlu
Speech-to-Text

Voice & Audio Transcripts

Record live lectures or study discussions with accurate speech recognition.

AI Study EngineNotlu
Video to Notes

YouTube Video Notes

Turn educational YouTube videos into clear summaries with timestamps and key takeaways.

AI Study EngineNotlu
Spaced Repetition

Active Recall Flashcards

Auto-generate question and answer card decks ready for spaced repetition practice.

AI Study EngineNotlu
Exam Prep

Practice Quizzes

Test comprehension with tailored multiple-choice and conceptual practice questions.

AI Study EngineNotlu
Visual Graph

Interactive Mind Maps

Explore node-based concept maps that connect complex topics and academic hierarchies.

AI Study EngineNotlu
Document AI

PDF Lecture Notes

Transform slides, syllabi, and multi-page textbooks into structured summaries.

AI Study EngineNotlu
Speech-to-Text

Voice & Audio Transcripts

Record live lectures or study discussions with accurate speech recognition.

AI Study EngineNotlu
Video to Notes

YouTube Video Notes

Turn educational YouTube videos into clear summaries with timestamps and key takeaways.

AI Study EngineNotlu
Spaced Repetition

Active Recall Flashcards

Auto-generate question and answer card decks ready for spaced repetition practice.

AI Study EngineNotlu
Exam Prep

Practice Quizzes

Test comprehension with tailored multiple-choice and conceptual practice questions.

AI Study EngineNotlu
Visual Graph

Interactive Mind Maps

Explore node-based concept maps that connect complex topics and academic hierarchies.

AI Study EngineNotlu

Features

Quizzes

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.

Multiple ChoiceQuestion 3 of 10

What is the primary function of mitochondria?

Protein synthesis
Energy production (ATP)
DNA replication
Cell division
Flashcards • SM-2Card 5 of 24
QUESTION

What is Ohm's Law?

Tap to flip
Flashcards

Flashcards 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

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.

PDF Document14 Pages
Synthesized

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

Machine Learning
Supervised Learning
Classification
Unsupervised Learning
Regression
Neural Networks
Clustering
Reinforcement Learning
Deep Learning
Mind Maps

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 Audio

Live Lecture Recording

Record lectures and seminars with instant multi-speaker transcription and smart bullet summaries.

PDF & Slides

PDF & Textbook Summarizer

Turn 50-page slide decks and heavy syllabi into clear structured study takeaways in seconds.

YouTube

YouTube Lecture Breakdown

Paste any video link to extract full transcripts, timestamped notes, and core insights.

Active Recall

Spaced-Repetition Flashcards

Auto-generate active recall study cards scheduled with smart review intervals before you forget.

Exam Prep

Practice Exam Quizzes

Generate multiple-choice tests from your notes to diagnose and fix weak spots before test day.

Visual Map

Concept Mind Maps

Transform dense paragraphs into branching concept diagrams to master relationships at a glance.

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.