YouTube guides

How to summarize YouTube videos in NotebookLM

Yes — NotebookLM can summarize YouTube videos. Add the video as a source, then ask for a summary, key takeaways, or study notes in plain language. The fastest path is importing the URL in one click with NotebookTools, then chatting with your notebook.

Whether you are researching a lecture series, reviewing a podcast-style video, or pulling facts from a long explainer, NotebookLM turns YouTube content into something you can query alongside PDFs, articles, and notes — all in one notebook.

Step 1: Add the YouTube video to a notebook

Manual method (copy URL)

  1. Open NotebookLM and sign in.
  2. Create a new notebook or open an existing one.
  3. Click Add source and paste the YouTube watch URL.
  4. Wait for NotebookLM to process the video.

Faster method: NotebookTools (one click)

NotebookTools is a free Chrome extension built for this workflow:

  1. Install NotebookTools and keep NotebookLM signed in.
  2. Visit any YouTube watch page.
  3. Click the NotebookLM button on the page.
  4. Pick a notebook (or create one) — the video is added instantly.

No tab switching. No copy-paste. The video appears as a source ready to summarize.

Step 2: Ask NotebookLM to summarize the video

Once the source is loaded, open the notebook chat and try prompts like:

  • “Summarize this video in 5 bullet points.”
  • “What are the main arguments or claims?”
  • “Create study notes I can review before an exam.”
  • “List any tools, names, or dates mentioned.”
  • “How does this video compare to my other sources?”

NotebookLM works best when you combine the video with other sources — articles, PDFs, or highlights you saved with right-click → Add to NotebookLM.

Why summarize YouTube videos in NotebookLM?

  • Searchable knowledge — ask questions instead of re-watching.
  • Cross-source synthesis — connect videos with papers and web pages.
  • Study and research — turn long videos into outlines and flashcard-style notes.
  • Free workflow — NotebookLM and NotebookTools are free to use.

Common issues

Video not importing? Make sure you are on a watch page (not just YouTube Home) and signed into NotebookLM in Chrome.

Summary feels shallow? Ask follow-up questions or combine the video with a transcript-style prompt: “Go deeper on section 2.”

FAQ

Can NotebookLM summarize any YouTube video?
Most public watch URLs work. Private or restricted videos may not.

Do I need NotebookTools?
No — pasting the URL in NotebookLM works. NotebookTools just removes friction.

Is NotebookTools affiliated with Google?
No. It is an independent extension that uses your existing NotebookLM session.