Your sources in.
Real understanding out.
NotebookLM.work turns your PDFs, lecture notes, articles and ideas into a notebook you can actually ask questions of. Summaries, study guides and answers grounded in your material — not the open internet.
No account required. Your notebooks stay on your device.
Everything a research notebook should do
Built for students, researchers and anyone with more to read than time to read it.
Bring any source
PDFs, Word files, plain text, Markdown, web links and your own typed notes. Drop them in and the notebook does the rest.
Instant summaries
A clear overview of every document the moment you add it — key points, definitions and the argument in plain language.
Ask, grounded
Every answer is drawn from the sources you added and points back to the exact passage it came from. No invented facts from nowhere.
Study guides & quizzes
Turn a reading list into flashcards, revision outlines and practice questions calibrated to what you actually need to remember.
Audio overviews
Listen to a spoken walkthrough of your notebook on the commute, at the gym, or anywhere reading is not an option.
Yours alone
No account, no profile, no ad tracking. Notebooks live in the app’s protected storage on your device and never sync to us.
Three steps, then it is just answers
Create a notebook
Give it a name — a module, a project, a case file. Notebooks keep unrelated material from bleeding into each other.
Add your sources
Import from Files, share a PDF straight from Safari or Mail, or paste text. Everything is indexed locally on your iPhone or iPad.
Ask and revise
Question it, summarise it, quiz yourself on it, or generate an audio overview. Each response cites the source it came from.
Built to know as little about you as possible
We designed the app so that the sensitive part — your documents — has nowhere to leak to. There is no login, no cloud library, and no advertising SDK.
Read the full policy- No account, ever. Open the app and start — nothing to sign up for.
- Notebooks stay on device. Stored in the app sandbox, protected by iOS encryption.
- No ads, no data sales. We do not sell or share personal information, ever.
- Delete means deleted. Remove a notebook, or the app, and it is gone.
Common questions
Do I need an account to use the app?
No. There is no sign-up, no email verification and no profile. You download the app and start a notebook immediately.
Where are my documents stored?
Inside the app’s private storage area on your device, protected by iOS file encryption. They are not uploaded to a library on our servers and we have no way to browse them.
Then how does the AI read my sources?
When you ask a question or request a summary, the app sends only the relevant excerpts needed to answer — not your whole library — to a third-party AI provider for processing, over an encrypted connection. The excerpt is processed and returned; it is not used to train models. Everything else, including indexing and search, happens on your device. This is explained in detail in the Privacy Policy.
Can I use it offline?
Reading, organising and searching your notebooks works offline. Generating summaries, answers and audio overviews needs a connection, because that step is processed remotely.
Is it accurate enough to rely on?
It is a study and research aid, not an authority. Answers are grounded in your sources and cited so you can check them, but AI systems can still misread or omit something. Always verify anything that matters against the original text. It is not a substitute for professional, legal, medical or financial advice.
Which devices are supported?
iPhone and iPad running a currently supported version of iOS or iPadOS. See system requirements.
How do I get help or report a bug?
Email info@notebooklm.work or use the contact form. We reply to every message, usually within two business days.
Start your first notebook
Free to download. No account, no tracking, no reason not to try it.