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KastorFlow
Better Sources Better Answers for Notebooklm Gemini Notebook
A Chrome extension for Google NotebookLM, now Gemini Notebook. Save AI chats, web pages and YouTube videos as sources, or a whole playlist as one source. See every notebook on a library map, tag and search them, delete sources in bulk. A knowledge graph of each notebook, audit sources and enrich the gaps. Generate and export Studio artifacts, publish Audio Overviews as a podcast feed, automate imports and refreshes. One extension for all of it. Connect Obsidian, Anki, Readwise, Slack & Discord.
Hi everyone, I’m the maker of KastorFlow.
NotebookLM answers from your sources, so it’s only as good as the sources you give it. Finding good ones, spotting what’s missing, keeping them current and keeping notebooks tidy is all manual work.
KastorFlow does that work, and you stay in charge.
Find: type a topic and NotebookLM’s own research finds sources. You preview each one and keep what you trust.
Check: Notebook Audit scores every source and flags weak ones. Enrich fills the gaps it found.
Keep current: automations import, tag and refresh on a schedule. Refreshing, enriching and publishing wait for your OK.
Collect: AI chats, web pages, X and Reddit threads, and a whole YouTube playlist as one source.
See: a library map of every notebook and a knowledge graph for each one.
Take it out: send to Anki, Obsidian (two-way), Readwise, Slack and Discord, and publish Audio Overviews as your own podcast feed.
No API keys on any plan, and no account to start. It’s free to start; the deeper tools are Pro and Pro+.
Where does keeping your notebooks in shape eat the most time? That’s what I build next.
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About KastorFlow on Product Hunt
“Better Sources Better Answers for Notebooklm Gemini Notebook”
KastorFlow was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #320 on the daily leaderboard. A Chrome extension for Google NotebookLM, now Gemini Notebook. Save AI chats, web pages and YouTube videos as sources, or a whole playlist as one source. See every notebook on a library map, tag and search them, delete sources in bulk. A knowledge graph of each notebook, audit sources and enrich the gaps. Generate and export Studio artifacts, publish Audio Overviews as a podcast feed, automate imports and refreshes. One extension for all of it. Connect Obsidian, Anki, Readwise, Slack & Discord.
KastorFlow was featured in Chrome Extensions (52.8k followers), Education (79.4k followers) and Artificial Intelligence (481.6k followers) on Product Hunt. Together, these topics include over 182.9k products, making this a competitive space to launch in.
Who hunted KastorFlow?
KastorFlow was hunted by Team KastorFlow. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Team KastorFlow