The pickLink checked Oct 9
Gemini Notebook
notebook.googleAsk questions across your PDFs and get answers with citations
Free tierSignup required
That one website that answers questions about a long PDF and shows where it found the answer
Why it's the pick
Gemini Notebook (Google renamed NotebookLM in July 2026) reads the PDFs, docs and links you add and answers with citations that jump to the exact passage, so you can check it. It is free with a Google account; like any AI it can still get things wrong, so read the cited parts before relying on an answer.
Know a better one? Tell us Made Gemini Notebook? Get the badgeYou might also need
That one website that
explains the confusing parts of a research paper in plain English
SciSpace scispace.com
Free tierSignup required
That one website that
finds research papers that answer your question
Elicit elicit.com
Free tierSignup required
That one website that
answers anything you ask, like a smart assistant you can chat with
ChatGPT chatgpt.com
Free tierSignup optional
That one website that
summarizes a YouTube video so you don't have to watch all of it
Glasp glasp.co
Free tierSignup optional
That one website that
keeps all your research sources organized and cites them for you
Zotero zotero.org
Free tierSignup optionalApp download
That one website that
answers questions with sources you can check
Perplexity perplexity.ai
Free tierSignup optional