A second brain for every thought.
Capture ideas as they come. Marginalia links them across notes, books, and drafts so insight surfaces on its own.
In use by writers, researchers, and builders
Features
Less app. More thinking.
Four things Marginalia does, and almost nothing else.
Capture anything
Text, images, audio, links, and email. One inbox that never asks you to decide first.
Links itself
Notes connect by meaning, not by the folder you happened to choose.
Recall on demand
Ask in plain language. Get answers built from your own archive.
Syncs everywhere, owned by you
Local-first storage with end-to-end encrypted sync. Your notes work offline and stay yours.
Three moves, not a workflow.
No setup, no taxonomy to maintain. You write; Marginalia does the rest.
Capture
Jot a note, paste a link, or forward an email. Marginalia takes it in without asking where it goes.
Connect
Links form themselves as you write. Related notes find each other without folders or filing.
Recall
Ask a question in plain language. Marginalia pulls the threads together from across years of notes.
“Marginalia replaced four apps and a notebook I kept losing. Now the thinking lives somewhere I can find it.”