INTEGRATIONS · MIND MAPS AND OUTLINERS
NotebookLM to OmniOutliner: outlines from mind maps
Short answer
OmniOutliner opens OPML. Export a NotebookLM mind map as OPML with NotebookLM Ultra Exporter, which is free, and open it as a nested outline.
Quick facts
| Item | Detail |
|---|---|
| Destination | OmniOutliner |
| Formats to export | OPML |
| Plan | Free |
| Direction | One-way, from NotebookLM to OmniOutliner. Each export is a snapshot. |
Steps
- Install NotebookLM Ultra Exporter in desktop Chrome, then refresh any open NotebookLM (Gemini Notebook) tab.
- In NotebookLM, export the content in a format OmniOutliner accepts (see the table below).
- Open the .opml file in OmniOutliner.
- Save it as an OmniOutliner document to add columns and styles.
- Open the downloaded file and check it before you rely on it or share it.
What to export for OmniOutliner
| NotebookLM content | Format | Guide |
|---|---|---|
| Mind maps | OPML | How to export |
Good to know
OPML carries hierarchy and text only, which is exactly what an outliner needs.
The extension creates files on your computer. It does not sign in to OmniOutliner, and nothing is sent to OmniOutliner until you import the file yourself.
Free or Pro?
Free, with no daily export quota and no website account needed. Pro covers the extension only; it does not include a Google subscription or raise NotebookLM's own limits. Current prices are on the pricing page.
Frequently asked questions
Does NotebookLM have a built-in OmniOutliner integration?
No. Gemini Notebook has no built-in connection to OmniOutliner. The working route is a file: export from NotebookLM in a format OmniOutliner reads (OPML), then import or open it there.
Can a slide deck become an outline too?
Yes, with Pro: see export slides to an outline.
Does my content pass through a server on its way to OmniOutliner?
No. Files are converted in your browser and saved to your downloads folder. You move them into the other app yourself.
Related guides
How to export NotebookLM mind maps to OPML. You get a structured outline file that outliners and mind-mapping tools import as a hierarchy.
Workflowy accepts OPML pasted into a list. Export a NotebookLM mind map as OPML with NotebookLM Ultra Exporter, which is free, open the file in a text.
Markmap turns a Markdown outline into an interactive mind map. Export a NotebookLM mind map as Markdown with NotebookLM Ultra Exporter, which is free, and.
Yes. Export a NotebookLM mind map as FreeMind (.mm), OPML or Markdown with NotebookLM Ultra Exporter, all free with no daily quota, then use File, Import in.
MindNode imports FreeMind, OPML and Markdown files. Export a NotebookLM mind map in one of those formats with NotebookLM Ultra Exporter, which is free, and.
Freeplane and FreeMind open .mm files natively. Export a NotebookLM mind map as FreeMind with NotebookLM Ultra Exporter, which is free, and open the file; no.
MindMeister imports FreeMind files. Export a NotebookLM mind map as FreeMind (.mm) with NotebookLM Ultra Exporter, which is free, and use Import in.
Yes. With Ultra Exporter Pro you publish NotebookLM Audio Overviews to a private RSS feed and follow it in Apple Podcasts with Follow a Show by URL.