Second Brain
Write linked notes the way your brain actually thinks. Watch connections form into a living galaxy of ideas — no folders, no hierarchy, just the graph of you.
How it works
Write the way you think — follow threads, not folders. The graph builds itself as you connect ideas.
Type [[Note Title]] to link any note. New notes are created automatically. Every link becomes a visible edge in your graph.
A force-directed graph where ideas repel, edges pull. Related notes cluster naturally. Pan, zoom, drag — the constellation is yours to explore.
Concentric rings ordered by tag — your most-connected note at the core, ideas orbiting outward. A different lens on the same connections.
Add #vision #product etc. to cluster notes by color. Tags define the palette — violet for vision, blue for product, gold for revenue, and more.
Every note shows what links to it — not just what it links out to. The full bidirectional picture of your thinking, always visible in the editor.
Notes live in your browser — no account needed. Export the full vault as JSON any time. Graph positions save automatically. Cloud sync is on the roadmap and optional when it arrives.
Get started in seconds
Click "Open the Brain" — it loads instantly in your browser. A starter vault with 14 connected demo notes is pre-loaded so the graph looks alive on day one.
Click "New Note," give it a title, and start writing. Use [[another note]] to link ideas together.
Switch to Galaxy view. Your note is now a glowing node. Wikilinks appear as edges. Drag, zoom, click — navigate your thinking visually.
Try Orbital view to see which ideas are hubs. Backlinks show what connects to any note. The graph reveals structure you didn't know was there.
Pricing
Free during open beta. Local storage only — no account required. Subscription unlocks cloud sync when it launches.
Questions