Type the note below — it is encrypted in this tab, and the link you get survives exactly one reading.
Scan this on the other device:
The key exists only in this link — we never receive it and cannot bring it back.
Got a code? Fetch it here:
A note here lives only in the server's memory — it is never written to disk in the first place. It is erased the instant it is read, and an unread note erases itself after 10 minutes. There's no trash folder, no soft delete, no backup where a copy lingers: destruction is the storage model, not a cleanup job.
Before the note leaves this page, your browser encrypts it, and the key
exists only in the link you get — in the fragment after the
#, which browsers keep to themselves. For its whole short
life on the server the note is ciphertext without a key. We couldn't read
it if we were asked to.
«Encrypted in your browser» is only as good as the page doing it, so this page plays by a strict rule: no script loaded from the network runs here — no analytics, no fonts, no third-party anything. Everything that touches your note is in the document your browser already fetched, and the page's security policy makes the browser enforce that rule rather than trust our manners.
A door code for the guest, a Wi-Fi password for the visitor, the thing you'd rather say once and have disappear. Call it a self-deleting note or a self-destructing one — either way it works online, in any browser, with nothing to install. Write it, hand over the link or the QR, done — the note does its own shredding.