A quiet system for loud ideas.
Marginalia organizes what you read, think, and write into a second brain you can actually search.
Halvard InstituteOtiumFieldnoteKestrelVerso
The system
Five parts, one archive
Search that keeps up with thought
Full-text and semantic search across every note, indexed on your device. Ask loosely, find exactly.
Backlinks, always on
Every note lists what points to it. Context accumulates without filing.
Daily review
Five resurfaced notes each morning.
End-to-end encrypted
Keys never leave your devices.
Export without permission
Plain Markdown files in a folder you own. Leave any time, take everything.
Private by architecture, not by promise
Notes are encrypted on your device before sync. Our servers store ciphertext, our business model is a subscription, and nothing you write trains a model.