A second brain thatkeeps the graph warm.

Capture ideas the moment they arrive. Cortex links them so recall feels automatic.

The system is the product.

Notes are not files in a drawer. They are nodes in a living map that rewrites its own edges as your thinking changes.

Live graph
Every note is a node. Links light up when a new idea touches an old one.
Context pull
Open a topic and Cortex gathers the surrounding trail you wrote months ago.
Semantic recall
Query the way you think. Results rank by meaning, not keyword overlap.
Private by default
Encrypt at rest on device. Sync is optional, explicit, and revocable.

Markdown, voice memos, and browser clips land in one inbox with stable IDs.

Embeddings propose edges. You confirm, reject, or let the graph stay sparse.

Walk from any note into neighbors, backlinks, and the original source trail.

Free for personal libraries. Local storage first. Export is a folder of plain Markdown.