A single note is a thought.
A thousand linked notes is a mind.

Cortex turns scattered notes into a connected web of knowledge — your ideas, mapped the way neurons map memory.

8.4M

notes linked daily

120ms

to find any idea

∞

connections per note

folders required

Knowledge isn’t a list. It’s a network.

Type [[ to reference any note. Cortex maps the relationship in both directions, instantly.

See your knowledge as a living constellation. Drag, zoom, and discover clusters you never noticed.

Cortex suggests related notes as you write — turning isolated facts into networked understanding.