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About

Kortex is a browser extension that turns Google’s NotebookLM into an interconnected, dynamic knowledge base, helping users stop losing ideas by capturing and organizing valuable insights that would otherwise remain trapped in chat histories and scattered tabs. It lets you archive full AI conversations from services like ChatGPT, Gemini, Claude, and Perplexity with one click and save any highlighted text on a webpage as a perfectly cited source directly to NotebookLM. Kortex also offers effortless exporting of sources, chats, or curated notes into Markdown, JSON, or a downloadable .zip file, and integrates with Google Docs so you can send documents to NotebookLM with a single click. For notebook management, Kortex enables bulk deletion of multiple notebooks from the dashboard at once. Designed to help users find anything they’ve saved and never lose an insight again, Kortex installs in seconds and supports thousands of users building their own “second brain”.

About

Gemini Notebook (formerly known as NotebookLM) is an AI-powered research and learning tool that helps users understand information using their own uploaded sources. The platform lets users add notes, documents, reports, and other materials, then ask questions and receive responses grounded in the provided content. Gemini Notebook can turn source material into formats such as Audio Overviews, Mind Maps, Reports, Flashcards, Quizzes, Video Overviews, Data Tables, Infographics, and Slide Decks. Users can also explore public notebooks on topics such as aging research, life advice, Shakespeare, and corporate earnings reports. The product emphasizes privacy, stating that organizational and school data stays private and is not used to train Gemini Notebook. Built for learning, research, productivity, and content understanding, Gemini Notebook helps users move from raw sources to summaries, insights, study materials, and structured outputs faster.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

Researchers, students, and knowledge workers who want to capture, organize, and save AI chats and web research into a unified, searchable knowledge base

Audience

Gemini Notebook is best suited for students, researchers, educators, knowledge workers, analysts, writers, teams, schools, organizations, and lifelong learners that need source-grounded AI answers, document summaries, Audio Overviews, Mind Maps, Reports, Flashcards, Quizzes, Data Tables, Infographics, Slide Decks, and private AI-assisted research workflows

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
$20/month for NotebookLM Plus
Free Version Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 4.5 / 5
ease 4.5 / 5
features 4.5 / 5
design 4.0 / 5
support 4.0 / 5

Pros & Cons from Real Users

Pros

  • NotebookLM makes organizing and understanding research materials much easier. It uses AI to summarize long documents, generate key insights, and connect related information efficiently. The interface is clean, and its ability to handle multiple sources helps save time when working on detailed projects.
  • Easy to add source documents. Fast processing Several variations of information processing (guide, quiz, mind map)

Cons

  • It’s currently in its early stages, so some advanced collaboration and export features are still limited.
  • The podcast extract information is currently only in English.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Kortex
Founded: 2025
USA
yaksh1.github.io/Kortex-Landing-Page/

Company Information

Google
Founded: 1998
United States
notebooklm.google/

Alternatives

Alternatives

Categories

AI Productivity Supported

Categories

AI Productivity Supported
AI Research Tools Supported
AI Tools Supported
AI Workspaces Supported
Note-Taking Supported

Integrations

Google Docs Supported
Claude Supported
Gemini 3 Pro Image Not Supported
Gemini 3.1 Flash-Lite Not Supported
Gemini 3.5 Pro Not Supported
Gemini 3.8 Flash TTS Not Supported
Gemini 3.8 Flash-Lite TTS Not Supported
Gemini Deep Research Not Supported
Gemini Enterprise Not Supported
Gemini Notebook Supported
Google AI Plus Not Supported
Google AI Pro Not Supported
Google AI Ultra Not Supported
Google Chrome Supported
Kortex Not Supported
Nano Banana Not Supported
Nano Banana 2 Not Supported
Nano Banana Pro Not Supported
NativeMind Not Supported
Perplexity Supported

Integrations

Google Docs Supported
Claude Not Supported
Gemini 3 Pro Image Supported
Gemini 3.1 Flash-Lite Supported
Gemini 3.5 Pro Supported
Gemini 3.8 Flash TTS Supported
Gemini 3.8 Flash-Lite TTS Supported
Gemini Deep Research Supported
Gemini Enterprise Supported
Gemini Notebook Not Supported
Google AI Plus Supported
Google AI Pro Supported
Google AI Ultra Supported
Google Chrome Not Supported
Kortex Supported
Nano Banana Supported
Nano Banana 2 Supported
Nano Banana Pro Supported
NativeMind Supported
Perplexity Not Supported
Claim Kortex and update features and information
Claim Kortex and update features and information
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