Write down what you want to remember. Ask it questions later. The notes, the search and the model all run here, on your machine — no account, no upload, no key, and the whole thing keeps working with the wi-fi off.
When you want the files, take them: one button, plain Markdown, yours.
ASK YOUR NOTES
WRITE OR PASTE A NOTE
Cmd-Return saves. Or drop .md, .txt or a .zip of them here. Stored in this browser only.
Why this exists
Every tool that offers to remember things for you asks first for an account, and then keeps the memory on its own servers. That is a reasonable trade until the day the plan changes, the company is bought, or you want your thinking somewhere else. This page is the opposite arrangement, made small enough to check in a minute: your words stay on your disk, the model is a file your browser downloaded, and the export is text.
It is also the honest shape of the real thing. The Mac version is this loop with a much larger model, an entire vault instead of a few notes, a brief compiled every night, and one nightly batch to a frontier model when a question genuinely needs it. Same files. Same rule about where they live.
When the notebook outgrows the tab
Download your notes, then run one line on a Mac. The installed version reads all of them at once with a model roughly six times the size, and asks nothing of you but the folder.
No. The notes are stored by your browser on your own disk, the search runs in JavaScript in this tab, and the model is downloaded once and runs on your own graphics chip. You can turn off wi-fi after the page loads and keep using it. There is no account and no server that could receive a note.
How safe is browser storage?
Safe from other people, but not permanent. Clearing site data, private windows, and some cleanup tools will erase it, and it does not follow you to another browser or device. That is exactly why the download button exists: press it and you have plain Markdown files that are yours regardless of what any browser does.
Why is the answer sometimes thin?
The model that fits in a browser tab is small — about half a billion parameters, a few hundred megabytes. It is good at pulling a sentence out of what it just read and bad at anything beyond that. So the passages it read are shown next to every answer, and when it would be guessing it says Held instead, with a button that copies the question and those notes for a bigger AI.
What do I get when I download?
A zip of Markdown files, one per note, plus a README. Open the folder in Obsidian and it is a vault. On a Mac, drop the notes folder into ~/chanio/notes and the installed version answers from the same files with a much larger model.
Is this the whole product?
No, it is the smallest honest version of it. The Mac version reads an entire vault instead of a handful of notes, runs a much larger model, compiles a brief every night, and sends only the questions you hold to a frontier model with a meter showing what that cost. This page is the same loop, small enough to try in ten seconds.