This app needs JavaScript
It is a single self-contained HTML file that builds its entire interface
in your browser. With scripting turned off there is nothing to show —
no server is going to send a page, because there is no server.
Turning it on costs you no privacy here. This app makes
no network requests, has no backend, no accounts, no cookies and no
analytics. Everything you enter is written to this browser's own storage
on this device and is never sent anywhere. The entire program is this one
file, and View Source shows all of it.
Enable JavaScript for this page, then reload.