KastorFlow
Better Sources Better Answers for Notebooklm Gemini Notebook
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Read the full description
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.
Visit website ↗ Source listing ↗
PH · launched Oct 19, 2026 · 1 upvote (top 67%)
- Horizontal
- Search & retrieval
- Prosumer
- AI-native
- Commercial product
- Chrome Extensions
- Education
- Artificial Intelligence
Similar launches
See all 87 similar launches →Could you build this?
Yes A Chrome extension that saves chats, pages, and YouTube sources, plus tagging, search, and LLM-generated knowledge graphs, is standard extension and LLM-API work. The main risk is dependence on NotebookLM's undocumented interfaces, which is manageable.
Competitors
Other products that read as similar to this one : 87 launches clear the similarity bar, closest 8 shown.
Attention rank: #53 of 88 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 342 days after the earliest competitor.
- Notebooks in Gemini · ph · 2026-04-18 · 315 upvotes · similarity 0.65
- Open-Source NotebookLM Alternative · hn · 2025-11-13 · 6 upvotes · similarity 0.56
- Free Google AI Course: 30+ Tools · ph · 2026-10-20 · 1 upvotes · similarity 0.52
- Google Gemini in Chrome · ph · 2026-03-24 · 189 upvotes · similarity 0.51
- Smart NotebookLM Importer · ph · 2026-10-04 · 2 upvotes · similarity 0.50
- Swift-Slide · ph · 2026-10-06 · 2 upvotes · similarity 0.47
- File Generation in Gemini · ph · 2026-04-30 · 165 upvotes · similarity 0.46
- gemini-stealth-bridge · github · 2026-10-16 · 98 upvotes · similarity 0.43
Other launches for this product
- No other launches for this product.
More details
- External ID
- 1284298
- Company
- n/a
- Product
- KastorFlow
- Website domain
- producthunt.com
- Cohort
- n/a
- Upvotes percentile
- 0.33
- All tags
- Chrome Extensions, Education, Artificial Intelligence
- AI summary
- source finder for notebooklm users
- Manually corrected
- No