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Marginalia / A second brain / Plain text

A second brain in plain text.

No folders. No lock-in. Just your notes as files, linked both ways, searchable in milliseconds, owned by you.

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Plain text/Bidirectional/Local-first/Encrypted/Yours/Plain text/Bidirectional/Local-first/Encrypted/Yours/

The index.

  • 01CaptureOne inbox. Text, images, audio, links. No folder required.
  • 02LinkWrite [[note]] once. Backlinks appear on their own.
  • 03SearchQuery syntax across years of notes in milliseconds.
  • 04SyncLocal-first files with end-to-end encrypted sync.
  • 05OwnPlain markdown on disk. No proprietary format. No lock-in.

02 / Features

Built like infrastructure.

01

Files, not a database

Your notes are markdown on disk. Greppable, portable, permanent.

02

Links both ways

Every [[link]] creates a backlink. The graph builds itself.

03

Search that scales

Instant full-text and query syntax across decades of notes.

“The first note app that did not try to own my thinking.”
Soren K. / Backend engineer

Take it. It is yours.

Free for personal use / No card / No lock-in

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Marginalia

A second brain in plain text.

IndexFeaturesDocsAll iterations
Marginalia / a design conceptSet in Geist & Geist Mono