one

Encrypted in this browser

Send a secret that opens once.

Your message and files are encrypted in this browser before they’re sent. The server only ever stores an encrypted copy it can’t read. The link works one time, then everything is deleted.

Encrypted on this device before it’s sent.
Files (optional, up to 10)
or drop them here
0 B of 10.0 MB
Delete unopened after
If nobody opens it by then, it’s deleted unread. Allowed range: 5m to 1d.
Add a passphrase (optional)
The recipient types this before the secret opens. Send it separately (for example by phone or a different app), never alongside the link.
Nothing leaves this device until you press the button.

What happens next

  1. SealedEncrypted here. The server never gets the key.
  2. WaitingUntil it’s opened or it expires.
  3. Opened onceThe first person with the link sees it.
  4. GoneDeleted from the server for good.