Your internet, remembered.
Nodum automatically saves, connects, and lets you chat with everything you've ever learned. Your second brain, on autopilot.
Save it once. Your knowledge graph builds itself as you browse.
One-Click Capture
Save any YouTube video, article, or research paper instantly. Click the Nodum extension — the AI handles everything from there.
Based on 4 nodes you've saved, here's what you know about transformer attention:
The attention mechanism lets each token attend to all others — this is what makes LLMs context-aware across long sequences, as explained in your saved Vaswani et al. paper.
Sources: [1] Attention Is All You Need · [2]...
Chat With Your Knowledge
Ask questions in plain English. Get answers grounded in your own saved sources, with citations showing exactly which nodes were used.
AI Connection Discovery
When you save something new, Nodum scans your entire knowledge base, finds related content, and explains why the two pieces are linked.
Built for everyone who reads to learn — not just to scroll.
Save research papers, textbooks, and lecture notes with one click. Nodum maps how ideas connect across your entire reading list — so your next essay or exam is backed by everything you've actually read.
Get Started FreeOne click to save. Everything else is automatic.
Based on 4 saved nodes, the attention mechanism allows each token to attend to all others...
Sources: [1] Vaswani et al. · [2] Jay AlammarEverything your second brain needs. Nothing you have to do manually.
One-Click Capture
Save any article, video, or paper instantly. No copy-pasting, no manual tagging. Just click.
Auto-Generated Summaries
Every piece of content gets a clean 3–5 sentence AI summary. Know what's in a node without re-reading.
Knowledge Graph
See everything you know as an interactive node graph. Like Obsidian — but fully automatic.
AI Connection Discovery
When you save something new, Nodum scans your entire knowledge base and draws connections — with explanations.
Chat With Your Knowledge
Ask questions in plain English. Get answers grounded in your own saved sources, with citations.
Built for Curious Minds
The more you save, the smarter Nodum gets. Your graph is private, personal, and yours alone.
From people who read a lot and used to forget everything.
I used to bookmark everything and read nothing. Nodum changed that — I can actually see how my reading connects now.
My literature review used to take weeks. Nodum mapped 50 papers in a day and surfaced connections I'd never have noticed manually.
I follow a lot of technical blogs and docs. Nodum ties it all together — I can ask questions about what I've read and actually get useful answers.
It's like Obsidian but without the maintenance tax. The graph just builds itself as I browse. I haven't touched a tag in weeks.
I used to bookmark everything and read nothing. Nodum changed that — I can actually see how my reading connects now.
My literature review used to take weeks. Nodum mapped 50 papers in a day and surfaced connections I'd never have noticed manually.
I follow a lot of technical blogs and docs. Nodum ties it all together — I can ask questions about what I've read and actually get useful answers.
It's like Obsidian but without the maintenance tax. The graph just builds itself as I browse. I haven't touched a tag in weeks.
Simple, transparent pricing.
Start building your knowledge graph for free. No credit card needed.
Get Started Free- 50 knowledge nodes
- 30 AI chat queries / month
- 20 URL ingestions / month
- Knowledge graph (view only)
For individuals who want to build a serious personal knowledge base.
Get Started- 500 knowledge nodes
- 200 AI chat queries / month
- 100 URL ingestions / month
- Full interactive knowledge graph
- Markdown export
For power users and teams who need deep research workflows and advanced analytics.
Get Started- 5,000 knowledge nodes
- 1,000 AI chat queries / month
- 500 URL ingestions / month
- Advanced graph filters & analytics
- Markdown, JSON & PDF export
- Priority processing
Good questions. Clear answers.
Nodum is a Chrome extension + AI app that automatically saves content you browse, generates summaries, and builds a visual knowledge graph that connects everything you've learned.
No — that's the whole point. You click the extension once, and Nodum handles everything: extraction, summarization, and connection-finding. All automatic.
YouTube videos, articles, blog posts, research papers, documentation, news — anything with a URL. If you can browse it, Nodum can save it.
Obsidian and Notion require you to do the work. Nodum does it for you. Your graph builds itself as you browse — no templates, no manual linking, no maintenance.
Yes. Your knowledge graph is yours alone. We don't train on your data or share it with anyone. Your notes stay private.
We're in open beta. Sign up for free to get instant access and help shape the product.
Stop forgetting the internet.
Start building your second brain today. It only takes a minute.