An evening desk: a laptop open to the Marrow notebook beside a handwritten paper notebook, a pen and a mug of coffee under a brass lamp.

A working notebook for people whose thinking arrives in pieces

Capture the thought before it's gone.

Quick notes that link themselves into something bigger.

Start writing — free

The notebook, running

This is a real week of notes in Marrow. Start your own and watch the threads draw themselves.

Marrow.
D

Capture a thought above, or press the + to start a blank note.

Threads

Your threads will show up here.

Linking, in plain terms

Write [[apartment hunt]] anywhere and Marrow connects it automatically.

No folders to build, no tags to maintain, no linking panel to open. You write the way you already think — in references — and Marrow turns every [[reference]] into a thread between two notes. Mention a note that doesn't exist yet and Marrow creates it, ready for the day you get to it.

Threads run both ways. If a note gets mentioned somewhere you've forgotten, it's already tied to that mention when you come back — which is how a two-second capture turns into a story six weeks later.

Apartment hunt

Kale Street top floor, $1,400, south-facing. Run everything past [[lease questions]] before Thursday.

Tuesday, 8:12 AM

Lease questions

Sublet clause? What happens if the elevator breaks in winter? Ask before signing.

Tuesday, 8:26 AM

Who it's for

Anyone whose thinking arrives in pieces.

Renata · second novel, chapter six

Character threads

Renata realizes Marta's brother has a birthday he's never had. Two keystrokes — [[Marta's brother]] — and every note that ever mentioned him surfaces: the letter on the fridge in chapter three, the voicemail she cut in November. The thread decides whether the birthday scene stays.

Tobias · dissertation, flood-plain policy

Sources that talk to each other

Fifty sources in, Tobias cites [[2019 council minutes]] in a new reading note — and Marrow quietly ties it to the seven other notes that already mention them. By the defense, the map of his argument already exists. He never had to build it.

Amara · founder, two weeks from launch

From meeting to decision

Amara pushes the launch at Thursday standup and captures the reason in the same breath: “delay to the 14th, contingent on capture speed — [[Thursday standup]].” Three weeks later, when Sam asks why they moved, the decision, the benchmark, and the meeting are one thread apart.