
NotebookLM has no way to organize sources inside a notebook, which turns your sources panel into a flat unscrollable list fast.
Finding anything means scrolling through all of them by hand.
I built an extension to fix these specific UI gaps.
The Upgrade:
🗂️ Native Source Folders: Organize sources inside any notebook into nested folders. Drag-and-drop to file them.
🔍 Source Search: Live filter for the Sources panel: find any source in a notebook with 50+ items instantly.
📂 Notebook Folders: Group your notebooks on the home page by project, topic, or subject.
🗑️ Trash Bin: Soft-delete notebooks instead of losing them forever. Restore with one click.
💾 Universal Export: Export your chat, sources, or any Studio artifact (mind maps, slides, briefings, flashcards) as Markdown, PDF, or plain text. Bulk download as a ZIP.
⚙️ Full Control: Toggle OFF anything you don't use.
➕ ...and much more: (Prompt Library, Prompt Chains, Word counter, Wide chat mode, Keyboard shortcuts, etc.)
🔒 Privacy & Safety:
I built this for my own work, so privacy was the #1 priority.
No private servers: It runs 100% locally on your machine.
Permissions: Strictly scoped to notebooklm.google.com. It cannot see your other tabs.
Try it here (works on Chrome, Edge, Brave, and any Chromium browser): Chrome Web Store