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QUESTIONS · ORGANIZING NOTEBOOKS

How do I delete multiple sources in NotebookLM?

FreeVerified · NotebookLM / Gemini Notebook·Markdown

Short answer

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 selected sources from the tools menu to remove them together. Deleting cannot be undone, so download or archive them first.

What to know

  • Deleting a source also removes it from the grounding of future answers.
  • Existing notes stay, but their citations to that source no longer open.
  • To free slots without losing content, merge sources instead.

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

Free or Pro?

Free, with no daily export quota and no website account needed. 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

Can I recover a deleted source?

No. Re-add it from the original link or file, or restore it from an archive.

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.

Merge NotebookLM sources into one to free source slots

When a notebook reaches its source limit, NotebookLM Ultra Exporter can combine several sources into one text source that keeps a table of contents, the.

Export NotebookLM sources to Markdown

How to export NotebookLM sources to Markdown. You get the extracted text of each selected source as a .md file that keeps headings and lists where NotebookLM.

.md
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.

How do I make NotebookLM answer from only some sources?

Untick the sources you want to exclude in the Sources panel; NotebookLM answers only from ticked sources.

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.

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.