An AI-native knowledge graph that's yours end-to-end.

Self-organizing notes with semantic search, wiki synthesis, and agentic chat — all open source. Run it as a desktop app, or self-host a server and sync every device. Your notes, your hardware, your model.

Also available as a self-hosted server or iOS app

What AI-native looks like

Semantic Search

Search by what you meant, not what you typed.

Wiki Synthesis

Pick a tag. Get a wiki article — with citations back to the notes that wrote it.

Agentic Chat

Chat with your notes. It cites them; it doesn't invent them.

Spatial Canvas

A force-directed map of your thinking. Related ideas drift toward each other on their own.

Auto-Tagging

No folders. Atomic tags every note the moment it lands.

MCP Integration

Plug it into Claude or Cursor. Your notes, in your agent's hands.

Wiki Synthesis

Wikis, written by your notes.

Pick any tag. Atomic generates a full wiki article from every note, clip, and saved page underneath — with inline citations back to the source atoms. Articles regenerate as you add more.

Learn more
Wiki synthesis view
Semantic search view
Semantic Search

Search by meaning, not strings.

Atomic embeds every atom into vector space. Type a question; get back ideas — even when your notes don't use the words you searched for. Find a note from six months ago without remembering what you titled it.

Learn more
Atoms

Everything is an atom.

Notes, articles, web clips — anything you save becomes an atom. Each one gets tagged, embedded, and connected the moment it lands. No folders, no schemas, nothing to maintain.

Learn more
Single atom view

Your daily briefing

A summary of everything new in your graph. Click any citation; the source atom lights up on a mini-canvas.

One server. Every device.

Your server is the source of truth. Every client points at it: desktop, iOS, browser, MCP. Run the whole stack on a laptop, or self-host and sync every device.

macOS
iOS
Server
Extension
MCP

Free. Open Source.
Yours end-to-end.