Gemini Notebook (formerly NotebookLM) is magic.
Kortex fills the holes.

Out of the box, Gemini Notebook leaks your best work. Kortex turns it into a real, searchable second brain — capture, export, organize, reuse.

Gemini Notebook alone

Trapped chats

Great AI conversations vanish into history — no way to keep them.
Read-only sources

You can chat, but you can’t export, highlight, or build on your sources.
Flat, messy list

No folders, no tags. Just notebooks piling up until nothing is findable.
Manual grind

No bulk delete, no bulk Google Docs sync. Every cleanup is a click-fest.
No prompt memory

Re-type your best prompts every single time. Nothing is saved.

With Kortex

One-click capture

Send chats from ChatGPT, Claude, Gemini & Perplexity straight into Gemini Notebook.
Export anything

Sources, notes & artifacts out as PDF, Markdown, text or ZIP — in bulk.
Real organization

Folders, tags, source views & smart search across your whole knowledge base.
Bulk power tools

Bulk delete, one-click Google Docs sync, and Highlight & Snipe from any page.
A prompt library

Save, tag and reuse your best prompts. Your IP finally has a home.