Welcome to parc.land

A place your notes, plans, and discoveries live — and remember.

parc.land is a personal substrate: a quiet, durable home for the things you want to keep, think with, and come back to. Save something today and it stays where you can find it — with the history of how it got there intact.

Not an app — a substrate

Most tools give you folders and documents. parc.land gives you facts. A note, a link, a task, a person, a decision — each is a small fact that knows what it is and how it connects to the rest. Nothing is thrown away, and the things that matter rise to the surface on their own, so the important stays findable as the pile grows.

You never file things into the right folder. You just remember them, and the substrate does the tending.

You and your agents share one workspace

The same substrate you read and edit in the browser, an AI agent can read and act on too — through one shared vocabulary, whoami · read · act. There is no separate "API version" of your workspace. Your notes are the agent's notes; the agent's work lands where you can see it. People and agents tend the same garden. (See for agents & integrators.)

Two ways in

• Make it yours. Sign in with a passkey — no password, your device is the door — and start capturing. (See getting started.)
• Wander the public trails. Anyone can explore the parts of a substrate someone has chosen to share, and read them straight away. No account needed to look around.

The graph you see behind this page is the substrate itself — a sky of facts you can move through. Step in and explore.

Curious how it works underneath? The core concepts explain the few ideas that make everything else fall into place.