NotebookLM Mindmap Extractor - Corrected Hierarchy
Extension Actions
Extract NotebookLM mindmaps with corrected X-coordinate level detection and connection-based parent-child mapping
Export Mindmaps from NotebookLM with One Click
NotebookLM Mindmap Extractor is a Chrome extension that allows users to export mindmaps created in Google NotebookLM into portable formats such as FreeMind (.mm), OPML, and structured XML. It helps researchers, students, professionals, and content creators preserve and share mindmaps outside the NotebookLM environment.
Key Benefits
Offline Access & Portability: Export mindmaps and use them with popular tools like FreeMind, Freeplane, and other compatible editors.
Multiple Export Formats: Choose from FreeMind (.mm), OPML, and structured XML formats.
High Accuracy: Maintains the original structure of your mindmap, including parent-child relationships and text content.
No Internet Required: All processing is done locally in your browser—your data never leaves your device.
Features
Smart Node Detection: Extracts nodes accurately from NotebookLM’s SVG-based interface.
Hierarchical Mapping: Identifies root nodes and builds structured trees using path and position analysis.
Noise Filtering: Removes interface elements and irrelevant data during export.
Visual Preview: See the structure of your mindmap before exporting.
Automatic File Naming: Generates clean, descriptive filenames using node content and timestamps.
How It Works
Open any NotebookLM page with a mindmap.
Click the extension icon and start detection.
Preview the structure, choose a format, and export.
Who It's For
Researchers & Students: Preserve study notes and literature reviews for offline use.
Project Managers: Export planning mindmaps for team collaboration.
Writers & Educators: Save outlines and structures for integration with writing or learning platforms.
Privacy & Security
All data is processed locally in your browser.
The extension does not collect or transmit any user data.
Requires minimal permissions.
Get Started
Install the extension, open a mindmap in NotebookLM, and export in just a few clicks. No setup required.
Latest reviews
- Yukie Chen
- The mindmap generated by NotebookLM has 5 topics on its first level, but the 'NotebookLM Mindmap Extractor' only captured 3 topics and failed to display the complete mind map.
- Asterion Daedalus
- Only "exports" 1st and 2nd level leafs, but not all the tree. Does not convert mind map nodes to notes and so does not export the useful data.
- J Gordon (Jeffy G)
- AWESOME TIMESAVER! I use Workflowy (similar to Notion), and OPML import is KING! Just be sure if you are importing into Workflowy that you add in the header section ownerEmail tags before and after the email address on the workflowy account (eg <ownerEmail>[email protected]</ownerEmail>)
- Ezequias Rocha
- It would be great if that extension could export to CSV or hierarchically by tabs, so I can load it in Miro or Whimsical.
- Hosein GSD
- Add markdown format.
- Siam
- well that work
- Aya Burstein
- Great tool! very useful, would be nice to have more formats like svg.
- M R
- Awesome! I extract to .mm and open in SimpleMind. Great and very needed extension since NotebookLM doesn't help you there.
- rohit Chakarverty
- easy to use, it enable me to have opml format that is suitable on all other platforms to use. Thanks for this extension
- Виталий Титаренко
- great. the solution that hits the target!. exactly what was necessary
- Євген Житарюк
- Cool! Immediately outputs a converted mind map in any of three formats: .mm .opml .xml Thank you guys!