YouTube

Kortex adds a NotebookLM button to YouTube. It sends a video, a playlist, a channel's uploads or search results into a Gemini Notebook (formerly NotebookLM) notebook as sources. One click adds up to 50 videos.

Why add videos to a notebook?

A notebook can read the words in a video and answer questions about them. You collect the videos on one topic, and then you ask the notebook what they say.

How to add one video

1. Open a video on YouTube.
2. Click NotebookLM, beside Like and Share.
3. Choose a notebook, or create a new one.

How to add many videos at once

On three kinds of pages, the button adds many videos in one go. It adds up to 50.

• A channel page: its uploads, newest first.
• A playlist page: the playlist, in order.
• A search results page: the videos in the current results, with your filters.

1. Open the channel, playlist or search results.
2. Click NotebookLM.
3. Choose a notebook. The button says what it is doing as it works.
4. When it is done, the button says how many videos went in, and the notebook opens.

Save to folder

Next to the NotebookLM button is Save to folder. It files the video, a playlist, a channel's latest videos or search results in a Library folder instead of a notebook. The folder that fits best is marked Suggested. You can type a new name to make a folder.

Videos you keep in a folder get their transcript saved, so search can land on the very moment you remember. To see what Kortex keeps, and how to pause or wipe it, see Videos in the Library.

Good to know

• A batch of up to 50 videos counts as one import on the free plan. The free plan has 10 imports a day.
• If the notebook already has a video, Kortex warns you first.
• Saving your YouTube history is off until you say yes. Kortex asks the first time you use Save to folder.

Related: The NotebookLM button on AI sites, Videos in the Library.