AI Note Taker

Your AI that takes perfect notes automatically

Paste a YouTube link, upload a PDF, or drop in audio — and get structured, section-by-section notes in seconds. Powered by Google Gemini. Works on any subject.

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No credit card required · 15 free credits/month

6+Source formats

30 secAverage to first note

7 assetsGenerated per session

40+Supported languages

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Exactly what you'll get

Real notes from a deep learning lecture — structured, accurate, and ready to review.

NotesFlashcardsQuizMind Map

STRUCTURED NOTES

Lecture 4 — Transformer Architecture & Self-Attention

Core Concept: The Attention Mechanism

Self-attention computes a weighted sum of all positions in a sequence — every token can "look at" every other token simultaneously.
Three learned matrices project each input into queries (Q), keys (K), and values (V). Attention score = softmax(QKᵀ / √d_k) · V.
Scaled by √d_k to prevent vanishing gradients when d_k (key dimension) is large.

Multi-Head Attention

Run h parallel attention heads, each with its own Q/K/V projection. Lets the model jointly attend to different representation subspaces.
Outputs are concatenated then projected back down: MultiHead(Q,K,V) = Concat(head₁, …, headₕ) · W_O.
Paper (Vaswani et al., 2017) uses h = 8 heads with d_model = 512, so each head has d_k = d_v = 64.

Key Takeaways

Attention replaces recurrence — no sequential bottleneck, fully parallelisable across GPUs.
Positional encodings inject token-order information that attention alone discards.

See full notes

Works with any source

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Everything included

Notes are just the beginning

Every session generates a full study workspace — notes, flashcards, quiz, and mind map, all from the same source.

Smart structure

Notes are organised into headings and bullet points — not a wall of text. The AI identifies main ideas and sub-points automatically.

Flashcards in one click

Any set of notes can be converted to a flashcard deck instantly. Same content, optimised for active recall.

Quiz generation

Turn your notes into a multiple-choice quiz to test yourself before the exam. Explanations included.

Mind map view

See how every concept in your notes connects visually. Great for understanding structure, not just memorising facts.

How it works

Three steps to structured notes

Add your content

Paste a YouTube link, upload a PDF, record audio, or type/paste any text. Notelify handles all formats in the same workflow.

AI reads and structures it

Google Gemini reads the full content, identifies key ideas, organises them into sections, and writes clean bullet-point notes.

Review, export, or extend

Read your notes in a clean workspace, export to PDF, or generate flashcards and quizzes from the same content.

Who it's for

Built for everyone who learns from content

🎓

Students

Get structured notes from any lecture recording, YouTube video, or PDF without spending hours typing.

👩‍💼

Professionals

Extract key points and action items from webinars, conference talks, and training sessions automatically.

🔬

Researchers

Turn dense academic papers into scannable bullet-point summaries you can reference quickly.

📚

Self-learners

Process online courses, podcasts, and tutorials into notes you'll actually review later.

Notes in your language

Notelify generates notes in the same language as the source — or translates everything to English with one click. 40+ languages supported.

FAQ

Common questions

What types of content can it take notes from?

YouTube videos, PDFs, Word documents, PowerPoint files, audio files (MP3/WAV/M4A), web articles, images, and plain text. All formats flow into the same note-taking pipeline.

How are the notes structured?

Notes are organised into titled sections with bullet-point sub-points. The AI identifies the main themes and groups related ideas together — similar to how a good student would outline a lecture.

Can I edit the notes after they're generated?

Yes — the notes workspace lets you read and copy the content, and PDF export preserves the full formatted structure for annotation in any PDF reader.

How long does it take?

Short content (a 10-page PDF or a 20-minute video) takes 10–20 seconds. Longer content like a 2-hour lecture typically completes in under 60 seconds.

Does it work for technical or scientific content?

Yes. Gemini handles technical vocabulary, equations, and domain-specific language well. It won't simplify away nuance — the notes stay accurate to the source.

Stop taking notes. Start learning.

Let AI handle the transcription, structure, and formatting — so you can focus on actually understanding the material.

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