KastorFlow

Save AI chats, YouTube and web pages to Google NotebookLM, then organize, tag, automate and share your notebooks.

KastorFlow helps you get more out of Google NotebookLM. Bring sources in from what you read and watch, keep every notebook organized, and create and share from what you have built, all from your browser. Collect sources in one click • Save a conversation from an AI chat app as a source. • Add a YouTube video, or a whole playlist as one source or video by video. • Save the page you are on, just the text you select, or the full page as a PDF. • Capture frames and the transcript of a video as a PDF. • Paste many links at once, pick from your open tabs, upload a CSV file of links, or add items from an RSS feed. • Save a post or thread from a social site, with a link back to the original. Organize your library • See all your notebooks and sources in one library, as a map or a list, with search, tags, collections and favorites. • Press Ctrl+K (Cmd+K on a Mac) to search from any page of the dashboard. • Tag sources yourself, or let AI suggest tags. • Move or copy sources between notebooks, and merge notebooks. Research and keep current • Build a new notebook on a topic in one step. • Audit a notebook and add what it is missing. • Refresh sources that have changed, and review the ones that need a look. Create and share • Generate Studio artifacts in batches and download them. • Publish Audio Overviews as podcast episodes with your own RSS feed. • Send artifacts to supported notes, flashcard and team-chat apps. You see each message, and the channel it goes to, before it is sent. • Save reports and tables to Google Drive, or download them as Markdown, PDF or CSV. Automate • Set up rules that import, tag, audit and refresh on their own. One switch pauses every rule. Works where you do • Small buttons inside NotebookLM, a popup for quick saves, a side panel that stays open while you browse, and a full dashboard for bulk work. • Light and dark modes. Plans KastorFlow is free to install and use. Pro and Pro+ plans raise the usage limits and add more tools, and each paid feature shows its plan label. • Pro: $7 a month, or $3.99 a month billed yearly ($47.88). • Pro+: $9.99 a month for your first 3 months, then $11.99 a month. Or $7.99 a month billed yearly ($95.88) for your first year, then $9.59 a month billed yearly ($115.08). Subscriptions renew automatically. You can cancel at any time and keep your plan until the paid period ends. Privacy Your notebooks stay in your own NotebookLM account, and our working copy lives in your browser. The extension reads what is on a page only when you use one of its tools there; on supported sites, its buttons look at the page layout to find their place. We don't sell your data. AI features send the content you act on to our servers and to Gemini. Full policy: https://kastorflow.com/privacy KastorFlow is an independent product. It isn't made, endorsed or sponsored by Google. NotebookLM and Gemini are trademarks of Google LLC.