NotebookLM Importer

About

NotebookLM Importer
A simple Chrome extension to quickly add websites as sources to your Google NotebookLM notebooks.

Features:

One-Click Sourcing: Add your current browser tab to NotebookLM with a single click.
Bulk Adding: Add all of your open tabs to NotebookLM at once.
Simple Setup: Just save your Notebook URL once, and you're ready to go.
Polished UI: A clean, Material Design-inspired interface that feels right at home in Chrome.
Clear Feedback: The extension provides visual feedback (loading spinners, success checkmarks, and failure icons) so you always know what's happening.
Built-in Help: A simple help guide to get you started.
Installation
Since this extension is not on the Chrome Web Store, you can load it manually in Developer Mode.

Download: Download the extension files and unzip them into a folder on your computer.
Open Chrome Extensions: Open Google Chrome and navigate to chrome://extensions.
Enable Developer Mode: In the top right corner of the extensions page, toggle on "Developer mode".
Load the Extension: Click the "Load unpacked" button that appears, and select the folder where you unzipped the extension files.
The NotebookLM Importer icon should now appear in your Chrome toolbar. You may need to click the puzzle piece icon to pin it.
How to Use
First, you need to tell the extension which notebook to add sources to.

Open your notebook in a browser tab. The URL should look something like https://notebooklm.google.com/notebook/....
Copy the URL of your notebook.
Click the extension icon in your toolbar to open the popup.
Paste the URL into the "Notebook URL" box and click Save. This is a one-time setup for each notebook you want to use.
Once set up, you can add websites:

To add a single website: Navigate to the page you want to add, then click Add Current Tab in the extension popup.
To add all open websites: Click Add All Tabs. The extension will automatically gather all your open, valid websites and add them in one batch.

Support the Project
If you find this extension useful, please consider supporting its development by using the Tip Jar button inside the extension!

Disclaimer: This extension relies on the structure of the NotebookLM web page. If the NotebookLM interface is significantly updated, the extension may require updates to continue functioning correctly.