100% Free

Organize Your
NotebookLM Library
Like a Pro

Folders, tags, favorites, smart rules, prompt library, statistics, and drag-and-drop — everything NotebookLM is missing, in one sidebar.

No account required. All data stays in your browser.

NLM Organizer
NLM Organizer
by Tim Mousel
Folders Tags Favorites Stats
The Problem

NotebookLM is powerful.
Organizing it is not.

No folders. Every notebook sits in one flat list that grows endlessly.
No tags or favorites. Finding the right notebook means scrolling and hoping.
No search filtering. 50+ notebooks? Good luck finding anything fast.
No sorting options. You can't sort alphabetically or by recent use.
The Solution

NLM Organizer
fixes all of that.

Nested folders with colors and icons. Organize notebooks into a clear hierarchy.
Tags, favorites, and search. Find any notebook in seconds.
Smart auto-folders. Rules that sort new notebooks into the right folder automatically.
Prompt library, stats, and more. Everything you need in one clean sidebar.

Everything You Need to Stay Organized

10 powerful features built into a single, lightweight sidebar that never leaves NotebookLM.

Nested Folders

Create unlimited folders and subfolders with custom colors and icons. Drag to reorder.

Tags & Labels

Add multiple tags to any notebook for flexible cross-cutting organization.

Favorites

Star your most important notebooks and access them with one click.

Smart Auto-Folders

Set rules that automatically sort new notebooks by title pattern — contains, starts with, or regex.

Prompt Library

Save, organize, and reuse your best prompts. One click to copy to clipboard.

Statistics Dashboard

See your library at a glance — folder distribution, tag usage, and a 30-day activity timeline.

Drag & Drop

Drag notebooks directly into folders from the sidebar. Reorder folders intuitively.

Duplicate Detection

Automatically spots notebooks with similar titles so you can clean up your library.

Recent & Sorting

View recently visited notebooks. Sort alphabetically, by date, or by recent activity.

Plus: resizable sidebar, notebook notes, import/export, archive, bulk actions, context menus, keyboard shortcuts, dark mode, and 8 languages.

Get Started in 30 Seconds

1
Install the Extension

Click "Install" below. It's free, no account needed. Works on Chrome & Edge.

2
Open NotebookLM

Go to notebooklm.google.com. The sidebar appears automatically.

3
Start Organizing

Create folders, add tags, drag notebooks in. You're done.

Install Now — It's Free

Works with Google Chrome, Microsoft Edge, Brave, and all Chromium browsers.

Your Data Stays Yours

NLM Organizer stores everything locally in your browser using the built-in storage API. Nothing is sent to external servers. No tracking. No analytics. No account required.

100% Local
No servers
No Tracking
Zero analytics
No Account
Install & go
Lightweight
Under 100 KB

Ready to Take Control of Your NotebookLM Library?

Join researchers, students, and professionals who use NLM Organizer to keep their notebooks tidy.

Install NLM Organizer — Free

User Manual

A simple guide to every feature in NLM Organizer.

Getting Started

  1. Install the extension from the install page (Chrome or Edge).
  2. Go to notebooklm.google.com.
  3. The NLM Organizer sidebar will appear on the left side of the page.
  4. If the sidebar is collapsed, click the arrow or press Alt + N.
NLM Organizer only runs on NotebookLM pages. It does not collect data from any other website.

The Sidebar

The sidebar is your command center. From top to bottom, it contains:

  • Search bar — Search notebooks, folders, and tags in real time.
  • Filter buttons — All Notebooks, Favorites, Recent, Duplicates (if any).
  • Sort dropdown — Change how notebooks are ordered.
  • Folder tree — Your folder hierarchy with notebook counts.
  • Tags list — All your tags with usage counts.
  • Prompt library — Your saved prompts.
  • Notebook list — A scrollable list of all notebooks.

You can resize the sidebar by dragging its right edge. Your preferred width is saved automatically.

Folders

Creating a folder:

  1. Click the + New Folder button in the sidebar.
  2. Enter a name, pick a color and icon.
  3. Optionally, select a parent folder to create a subfolder.
  4. Click Save.

Assigning notebooks to a folder:

  • Right-click any notebook card → choose Move to folder → select the folder.
  • Or drag a notebook card and drop it onto a folder in the sidebar.

Editing or deleting: Click the menu next to any folder.

Tags

  1. Click + New Tag to create a tag with a name and color.
  2. Right-click a notebook card → Tags → check or uncheck tags.
  3. Click any tag in the sidebar to filter notebooks by that tag.

Notebooks can have multiple tags at once, making it easy to categorize across different dimensions (e.g., by topic and by project).

Favorites & Recent

Favorites: Click the star icon on any notebook card, or right-click → Add to favorites. Click the Favorites filter in the sidebar to see only starred notebooks.

Recent: Click the Recent filter to see the 20 notebooks you've visited most recently. This is tracked automatically.

Smart Auto-Folders

Auto-assign rules automatically move notebooks into folders based on their title.

  1. Edit a folder (click → Edit).
  2. In the edit dialog, scroll to Auto-Assign Rules.
  3. Choose a match type:
    • Contains — title contains the text (e.g., "Biology")
    • Starts with — title begins with the text
    • Regex — advanced pattern matching
  4. Enter the pattern and click Add Rule.

Rules run automatically when new notebooks appear. You can also click Run Rules to apply them to all existing notebooks that aren't yet assigned to a folder.

Prompt Library

Save prompts you frequently use with NotebookLM's AI features.

  1. Click + New in the Prompts section of the sidebar.
  2. Enter a title, optional category, and the prompt text.
  3. Click Save.

Using a prompt: Click any saved prompt to copy it to your clipboard. A green flash confirms the copy. Then paste it into NotebookLM.

Prompts are grouped by category. Use the filter input to search through large collections.

Notebook Notes

Add private notes or annotations to any notebook:

  1. Right-click a notebook card → Add note.
  2. Type your note in the text area and click Save.

Notebooks with notes show a small icon. Hover over it to see the note content. Right-click → Edit note to change it.

Drag & Drop

Moving notebooks: Click and drag any notebook card onto a folder in the sidebar. The folder will highlight when you hover over it. Release to assign.

Bulk move: If you have multiple notebooks selected (via checkboxes in the notebook list), dragging one will move all selected notebooks.

Reordering folders: Drag folders up or down in the sidebar to change their order.

Duplicate Detection

NLM Organizer automatically scans for notebooks with similar titles (ignoring capitalization, "(copy)" suffixes, and trailing numbers).

  • If duplicates are found, a Duplicates filter button appears in the sidebar.
  • Duplicate notebooks show an orange DUPE badge.
  • Click the Duplicates filter to see only the duplicates, then delete the ones you don't need directly in NotebookLM.

Statistics Dashboard

Click the stats icon in the sidebar header to open the dashboard. It shows:

  • Summary cards — Total notebooks, active, favorites, archived, folders, and tags.
  • Notebooks per folder — A colored bar chart showing distribution.
  • Tag usage — How many notebooks use each tag.
  • 30-day activity timeline — A mini chart showing which days you used NotebookLM.

Import & Export

Importing sources: Click the popup icon or use Alt + I to quickly import a URL, YouTube video, or other source into NotebookLM.

Exporting data: Right-click the sidebar → Export, or use the popup menu. This exports your organizational data (folders, tags, assignments) as a JSON file for backup or transfer to another computer.

Restoring: Use Import to load a previously exported JSON file and restore your organization.

Sorting & Search

Search: Type in the search bar at the top of the sidebar (or press Alt + F). Results filter in real time across notebook titles, folder names, and tag names.

Sorting: Use the dropdown below the filter buttons to sort by:

  • Default — NotebookLM's original order
  • A → Z — Alphabetical ascending
  • Z → A — Alphabetical descending
  • Recent first — Most recently visited on top
  • Oldest first — Least recently visited on top

Keyboard Shortcuts

ShortcutAction
Alt + NToggle sidebar open/closed
Alt + FFocus the search bar
Alt + IQuick import current page

You can customize these at chrome://extensions/shortcuts (Chrome) or edge://extensions/shortcuts (Edge).

Settings

Access settings by clicking the gear icon in the sidebar, or through the extension's options page.

Available settings:

  • Panel width — Default sidebar width (also adjustable by dragging).
  • Theme — Follows your system theme automatically (light/dark).
  • Data management — Export all data, import a backup, or reset to defaults.

Start Organizing for Free

No sign-up. No payment. Just install and go.

Built by Tim Mousel — Evolve AI Institute