KastorFlow

KastorFlow is a Chrome extension for NotebookLM, which Google now also calls Gemini Notebook. Bring your reading, videos and AI conversations into one research workflow, organize the growing collection and check the material behind your answers.

A useful idea might begin in a saved chat, a lecture or an article. Bring those pieces together in NotebookLM, find them when you need them, and keep the collection organized around your project.

Your notebooks remain in your own NotebookLM account. KastorFlow keeps a working copy in your browser for managing your library, with the data handling for AI features and publishing explained below.