Bring your material in
Put PDFs, notes, Docs, and lectures into a library you can organize by collection and topic.
Start with what you already study
A workspace built around your material
One place for what you study. Pick up where you left off.
Shelf keeps your PDFs, notes, questions, quizzes, and plans connected. Read and highlight your material, ask questions grounded in it, practice what you learned, then pick up from the same place tomorrow.
Free to start. Your library is private to your account.
Live product walkthrough
How it works
From your first page to your next session
Each step stays attached to your material, so you can continue instead of starting over in another app.
Read with context
Highlight and take notes as you read. Ask Tutor about a passage, a file, or your library, with links back to your sources.
Explore reading and Tutor →Check what stuck
Make a quiz from your own material, answer it, and revisit the results before your next session.
See how practice works →Pick up tomorrow
Resume the page you were reading and open tasks linked to your material. Use AI Planner when you want a draft schedule from a goal.
Plan the next session →Product walkthrough
See how Shelf fits your study flow
Built to return to
The context you create does not disappear after one answer.
A PDF chat can answer a question. Shelf also gives your reading, notes, practice, and next session a shared home.
Explore the reader workspaceYour place
Return to the page and reading position you saved.
Your thinking
Highlights and notes stay with the document.
Your questions
Saved document chats remain available in Tutor.
Your practice
Open past quizzes and review what you answered.
Your next step
Planner items can link back to the page you need.
Good to know
A few direct answers
Start with your own material, or browse the free library before signing in. Compare workflows or see current plans.
What is Shelf?
Shelf is a personal workspace for people who read, study, teach, or research from their own material. Keep PDFs, notes, Docs, and lectures together with reading, source-grounded questions, quizzes, and planning.
Can I ask questions about more than one document?
Yes. Tutor can work with a page, a topic, a collection, or your wider indexed library, and link answers back to source pages.
Can Shelf make quizzes from my PDFs and notes?
Yes. You can create practice from your library or an upload, choose question types and a timer, and review the results afterward.
Why come back instead of starting another AI chat?
Shelf saves your reading position, highlights, document chats, and past quizzes. Planner items can take you back to the page you scheduled, so the next session starts with context.
How is Shelf different from ChatGPT or Gemini Notebook (formerly NotebookLM)?
ChatGPT is useful for general-purpose conversation. Gemini Notebook explores sources and offers quizzes and flashcards. Shelf focuses on a personal PDF reader and library with saved reading state, annotations, questions, quizzes, and page-linked plans. Choose the workflow that fits you.
Can I try Shelf for free?
Yes. The free plan includes a personal library, reading tools, Tutor, quizzes, and a planner, with usage limits. Check the pricing page for current limits and paid options.