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features
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Description

Kortex is a browser extension that transforms Google’s NotebookLM into a cohesive and interactive repository of knowledge, enabling users to capture and organize essential insights that might otherwise be lost in chat histories and various tabs. With just one click, it allows for the archiving of complete AI conversations from platforms like ChatGPT, Gemini, Claude, and Perplexity, while also enabling the saving of any highlighted text from webpages as accurately cited references directly to NotebookLM. Furthermore, Kortex simplifies the process of exporting sources, chats, or curated notes in formats such as Markdown, JSON, or as a downloadable .zip file, and it seamlessly integrates with Google Docs, allowing for easy document transfers to NotebookLM. To enhance notebook management, Kortex provides the functionality to delete multiple notebooks simultaneously from the dashboard. Created with the goal of ensuring users can easily access their saved information and never overlook an idea again, Kortex can be installed within seconds and currently supports a growing community of users developing their own "second brain" for enhanced productivity and creativity. This innovative tool not only streamlines the organization of thoughts but also encourages users to harness their creativity in a more structured manner.

Description

Second Brain is an innovative platform driven by AI that facilitates research, planning, and productivity by allowing users to create an “AI visual board”—essentially a centralized knowledge repository where various types of content such as documents, articles, videos, audio files, GitHub repositories, websites, and ChatGPT interactions can be uploaded and engaged with through conversation. Utilizing cutting-edge AI technologies like GPT-4.5, Claude, Grok 3, and DeepSeek R1, Second Brain provides features such as quick summarization, searchable Q&A, multilingual communication (for instance, chatting in English while referencing Spanish materials), and the capability to convert text into natural, human-like prose seamlessly. Users can conveniently save AI-generated chat responses as well-organized, shareable pages, enhancing them further with elements like headings, to-do lists, images, code snippets, or hyperlinks. Additionally, a handy Chrome extension allows for the effortless capture of web content, text, images, screenshots, and outputs from ChatGPT with just a single click, streamlining the organization process and enhancing productivity. This integration of various tools makes Second Brain a versatile asset for anyone looking to optimize their knowledge management and creative workflows.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

ChatGPT Yes 
Claude Yes 
Claude Sonnet 3.7 No 
DeepSeek R1 No 
GPT-4.1 No 
GPT-4.1 mini No 
GPT-4.5 No 
Gemini Yes 
Gemini Notebook Yes 
GitHub No 
Google Chrome Yes 
Google Docs Yes 
Grok 3 No 
Instagram No 
Loom No 
Perplexity Yes 
TikTok No 
YouTube No 

Integrations

ChatGPT Yes 
Claude Yes 
Claude Sonnet 3.7 Yes 
DeepSeek R1 Yes 
GPT-4.1 Yes 
GPT-4.1 mini Yes 
GPT-4.5 Yes 
Gemini No 
Gemini Notebook No 
GitHub Yes 
Google Chrome No 
Google Docs No 
Grok 3 Yes 
Instagram Yes 
Loom Yes 
Perplexity No 
TikTok Yes 
YouTube Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$6 per month
Free Trial No 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

Kortex

Founded

2025

Country

USA

Website

yaksh1.github.io/Kortex-Landing-Page/

Vendor Details

Company Name

SecondBrain

Country

United States

Website

www.thesecondbrain.io

Product Features

Product Features

Alternatives

Alternatives

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