NotebookLM Manager: Organize, Bulk Delete & Find Duplicates

Organize your NotebookLM sources in a smart sidebar: see every label (group) at a glance, bulk delete sources and find duplicates automatically. NotebookLM Manager adds features Google doesn't offer yet: - Sidebar showing all labels and sources in your notebook - Bulk delete: select and remove multiple sources at once, with confirmation to prevent mistakes - Automatic duplicate source detection - One-click navigation between groups - Auto-open sidebar per notebook - Quiet mode that hides NotebookLM's own notifications Great for anyone working with many sources: students, teachers and researchers. Privacy: no data collection, no server. Everything runs locally in your browser. Works on notebooklm.google.com and notebook.google.com.