Marrow privacy

Covers the Marrow apps and the Marrow Clipper browser extension. Last updated 7 November 2026.

Your notes are yours. Marrow has no accounts, no ads and no tracking. We don't run a server that receives your notes, the pages you clip, or anything about how you use the apps.

Marrow Clipper (the browser extension)

The clipper saves a web page, or the part of it you selected, as a note in the Marrow app on the same computer.

• When it reads a page: only when you click its button, use its keyboard shortcut, or choose "Clip to Marrow" from the right-click menu. It never reads pages in the background.
• What it reads: the page you're on: its address, its content, and the part you selected, if any.
• Where it sends it: only to the Marrow app on your own computer, at 127.0.0.1. It never leaves your computer through the extension, and nothing is sent to us or anyone else.
• What it keeps: nothing. The extension stores no pages, history or settings; the note is saved by Marrow, in your notes folder.
• What it doesn't do: no analytics, no ads, no selling or sharing data, no code downloaded from the internet.

Marrow only accepts clips from browser extensions, so web sites can't use it to put things in your notes.

The Marrow apps

• Your notes are plain files in a folder you choose, on your device. We can't see them.
• Sync is optional. If you turn it on, your notes go between your devices through the service you pick (Google Drive, OneDrive, Dropbox, iCloud or a WebDAV server), under your own account with that service. You can encrypt them first, so that service can't read them either.
• Ask your notes is optional. If you set it up with an AI provider's key, the question and the parts of your notes needed to answer it are sent to that provider, under your account with them. Locked notes are never sent. If you use a model on your own computer, nothing leaves it.
• Saving a web page on a phone downloads that page from its site, the same as opening it in a browser.
• Locked notes are encrypted with your password on your device. Without it, no one can open them, including us.
• Logs about problems stay on your device. They're only shared if you choose to send them yourself.

Children

Marrow doesn't collect information from anyone, including children.

Changes

If this page changes, the date at the top changes too. Earlier versions are kept in the site's history.

Questions

Ask on Marrow's GitHub page. The apps' source code is public there too, so anyone can check what they do.