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Save Everything
You collect articles, videos, PDFs, bookmarks, screenshots, and notes.
AI PERSONAL KNOWLEDGE SYSTEM
Turn everything you learn into connected knowledge.
LUNAS33 uses AI to compress articles, PDFs, videos, notes, and documents into a living knowledge system — helping you remember more, connect ideas faster, and retrieve what you already know.
✓ Free to start · No credit card required
akseslunas33.live / knowledge
⌘ K
OVERVIEW / OCT 2026
Your Knowledge
AI Agents12 connections
Memory
RAG
Tool Use
Planning
Vector DB
Built for people who never stop learning.
ResearchersStudentsDevelopersWritersFoundersCurious minds
THE PROBLEM
Information is everywhere.
Your knowledge shouldn't be.
Every day, you collect more than you can meaningfully remember. The value isn't in saving more — it's in seeing how it all fits together.
◌
Remember Very Little
Important ideas disappear inside an ever-growing pile of information.
⌁
Miss the Connections
The most valuable insights often appear when different ideas connect.
THE LUNAS33 METHOD
From scattered information
to a system that thinks with you.
Capture
Bring articles, PDFs, videos, notes, screenshots, and documents into one place.
Compress
AI extracts concepts, ideas, claims, context, and the information that matters.
Connect
Discover relationships between new information and your existing knowledge.
Recall
Search and ask questions across everything you have learned.
BUILT FOR DEPTH
More than summaries.
LUNAS33 understands the relationships behind what you learn.
AI Knowledge Extraction
Convert long-form content into structured concepts and insights that remain useful long after you close the tab.
Semantic Search
Find knowledge by meaning instead of relying only on exact keywords.
Knowledge Graph
Visualize relationships between concepts across your entire knowledge base.
Cross-Source Connections
Discover relationships between ideas from completely different sources.
Source-Aware Answers
Every answer can be traced back to the original source.
Knowledge Timeline
See how your understanding of a topic evolves over time.
SIGNATURE FEATURE
Connect the dots automatically.
Every new source becomes an opportunity to deepen what you already know. LUNAS33 surfaces the connections you might have missed.
Explore your knowledge ↗PDFjust now
Memory in
AI Agents
New source added
4CONNECTIONS
DISCOVERED
DISCOVERED
ALREADY IN YOUR KNOWLEDGE
AI AgentsRAGContext WindowsVector DatabasesTool UseAI KNOWLEDGE CHAT
Ask your knowledge
anything.
Your answers come from your own knowledge base — grounded in the sources you have collected and the connections you have made.
LUNAS33 KNOWLEDGE CHAT17 sources connected
Ask a follow-up about your knowledge...↑
YOUR KNOWLEDGE, YOUR WAY
Bring everything
you learn.
↗ Articles▤ PDFs▶ YouTube✎ Notes▧ Screenshots▥ Documents⌁ Web pages≡ Text
THE KNOWLEDGE GRAPH
Your knowledge isn't a folder.
It's a network.
Watch ideas move from isolated notes into a living map of everything you care about.
LUNAS33your knowledge system
Ideas
Concepts
Sources
Topics
Projects
Questions
Insights
1,247 connections alive right now
ONE SYSTEM, MANY WORLDS
One knowledge system.
Endless ways to use it.
Research
Connect papers, findings, notes, and references.
Learning
Build a personal knowledge system across everything you study.
Writing
Keep research and ideas connected while developing new work.
Development
Connect documentation, tutorials, technical notes, and architecture knowledge.
Business
Connect research, customer insights, decisions, and strategy.
Personal Growth
Build a searchable memory of what you learn over time.
KNOWLEDGE TIMELINE
See your thinking
take shape over time.
Understanding compounds. LUNAS33 helps you see how one idea led to another.
✦
“Your understanding of AI agents has expanded across 4 connected topics over the past 9 months.”
JANUARYAI Agentsfirst principles
MARCHRAGretrieval patterns
JUNEAgent Memorypersistent context
SEPTEMBERAgentic Systemsthe bigger picture
SIMPLE, TRANSPARENT PRICING
Start free.
Go deeper when you're ready.
FREE
$0 / month
A focused start for curious minds.
- 100 sources
- Basic AI extraction
- Semantic search
- Personal knowledge base
MOST POPULAR
PRO
$12 / month
For people who learn seriously.
- 5,000 sources
- Advanced AI extraction
- Knowledge graph
- Cross-source connections
- AI knowledge chat
- PDF & YouTube support
POWER
$29 / month
For knowledge-heavy workflows.
- 25,000 sources
- Advanced knowledge graph
- Advanced AI analysis
- Knowledge analytics
- Priority processing
- Early feature access
QUESTIONS, ANSWERED
Make space for
better questions.
Still curious? That's exactly the point.
What is LUNAS33?+
LUNAS33 is an AI-powered personal knowledge platform that turns everything you learn into a connected, searchable system.
How is LUNAS33 different from a normal note-taking app?+
Instead of only storing notes, LUNAS33 understands concepts and discovers relationships between everything in your knowledge base.
Can LUNAS33 analyze PDFs and YouTube videos?+
Yes. Pro and Power plans support PDFs and YouTube alongside articles, notes, screenshots, and documents.
How does the knowledge graph work?+
AI identifies concepts in your sources and maps meaningful relationships between them, giving you a visual network of what you know.
Can I search everything I have saved?+
Yes. Semantic search lets you search by meaning across your entire personal knowledge base.
Is there a free plan?+
Yes. Start with up to 100 sources for free, with no credit card required.
YOUR NEXT CONNECTION IS WAITING
Stop collecting information.
Start building knowledge.
Everything you learn becomes more valuable when it connects.
Free to start · No credit card required