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QUESTIONS · ORGANIZING NOTEBOOKS

How do I make NotebookLM answer from only some sources?

Free + ProVerified · NotebookLM / Gemini Notebook·Markdown

Short answer

Untick the sources you want to exclude in the Sources panel; NotebookLM answers only from ticked sources. To avoid re-ticking, NotebookLM Ultra Exporter saves a selection as a view you can restore in one click. Free saves 2 views per notebook and 5 overall.

What to know

  • Use views for contexts such as "primary sources", "this week" or "one author".
  • Search and filter in the Sources panel help build a selection.
  • Studio items are generated from the selection that is active when you click generate.

Google changes these menus often. The item's own menu in your notebook shows what is built in today.

Free or Pro?

The basics are free; the advanced options listed on this page need Ultra Exporter Pro. Pro covers the extension only; it does not include a Google subscription or raise NotebookLM's own limits. Current prices are on the pricing page.

Frequently asked questions

Why does an answer ignore a source?

Check that the source is ticked and finished processing. A source that failed to import has no text to answer from.

Related guides

Source tools: search, filter, bulk download and delete

NotebookLM Ultra Exporter adds a tools row to the NotebookLM Sources panel: search and filter sources, save and restore source selections as views, download.

How do I organize NotebookLM notebooks into folders?

NotebookLM lists notebooks in one flat grid and has no folders of its own. NotebookLM Ultra Exporter adds collections, which behave like folders, plus tags.

How do I find a notebook quickly in NotebookLM?

The NotebookLM home page shows notebooks as a grid with little filtering, which gets slow past a few dozen.

How do I delete multiple sources in NotebookLM?

NotebookLM removes sources one at a time from each source menu. With NotebookLM Ultra Exporter, tick the sources in the Sources panel and choose delete.

How do I save prompts in NotebookLM?

NotebookLM has no saved prompts; you retype or paste them each time. NotebookLM Ultra Exporter adds a prompt library: save a prompt once, then type / in the.

What is the NotebookLM source limit?

Google documents a limit of 50 sources per notebook on the free tier, with each source limited to 500,000 words or 200 MB.

How do I work around the NotebookLM source limit?

You cannot raise the limit, but you can fit more into it. Merge related sources into one text source, combine small text files before importing, and split.

How do I add multiple URLs to NotebookLM at once?

NotebookLM accepts website links through its add-source dialog, a few at a time. To import a long list, paste the URLs, one per line or mixed into text, into.