How people use Kortex.

Kortex adds memory and AI tools to Gemini Notebook (formerly NotebookLM). Here’s how 19 kinds of people use it, step by step.

Who is Kortex for?

Kortex is for people who keep their research in Gemini Notebook (formerly NotebookLM): students and teachers, researchers and industry scientists, lawyers, doctors, financial analysts and accountants, founders, product managers, marketers, salespeople, recruiters and developers. It saves AI chats, web pages, posts and YouTube videos into notebooks, keeps them organized and searchable, and exports everything back out.

Students and education

Studying, teaching and keeping up with reading.

Research and science

Papers, preprints, patents and AI research.

Law, health and finance

Research with sources, for fields where privacy matters.

Business

Projects, customers, deals and decisions.

Product and engineering

Evidence for specs, and notebooks your coding agent can read.

Creators and marketing

Research from feeds and videos, turned into briefs and drafts.

Running a lab, a class or a small team?

We set up shared prompt libraries, team notebooks and an admin dashboard for seats and usage by email. Tell us about your group.

Ask about team setup

Not on the list?

Kortex works for anyone who keeps research in Gemini Notebook. Start from every feature, copy-ready prompts or the free tools.

100,000+ users, rated 4.5 on the Chrome Web Store.

Questions before you start

Something we missed? Ask us.

Do I need Gemini Notebook to use Kortex?

Yes. Kortex is an independent Chrome extension that works in and around Gemini Notebook (formerly NotebookLM), with the Google account you already use there. It is not made by Google.

Which AI chats can Kortex save?

ChatGPT, Claude, Gemini, Perplexity, Grok, Kimi, Genspark and OpenEvidence get a Send to Notebook button, and so do posts on X, Reddit and LinkedIn, YouTube and Google Docs. On any other page, highlight text and right-click to send it.

Can I use Kortex for confidential work?

Kortex sends what you import to Gemini Notebook in your own Google account, and doesn’t keep your chats or the contents of your sources. Lawyers, clinicians, financial professionals and HR teams should follow their organization’s confidentiality and data policies on what goes in. We don’t claim any compliance certification.

Can a team use Kortex?

Yes. Each person installs Kortex for their own account, and notebooks are shared from Gemini Notebook. For shared prompt libraries, team notebooks and an admin dashboard for seats and usage, tell us about your group and we will set it up by email.

Pick the notebook you’re in now.

Add Kortex to Chrome and send the next chat, page or video to it.

100,000+ users, rated 4.5 on the Chrome Web Store.

Talk to the Kortex team

This opens a pre-filled email in Gmail. We usually reply within a day.