SecretTonne needs Web Crypto, WebAssembly, and Web Workers in a secure (HTTPS) context. Please use a current version of Firefox, Chrome, Edge, or Safari.
Share a secret
Your secret is encrypted in this browser before it is uploaded. The server stores only the encrypted data and
deletes it after one successful retrieval or when it expires.
Your secret is ready
Send the link to the recipient. It works for one successful retrieval and expires
.
The part after # is the link key. Browsers never send it to the server.
The recipient needs all three: the URL, the link key, and the passphrase. Send each through a
different channel for the best protection.
Before you send it
The passphrase is not part of the link. Tell the recipient through another channel.
After one successful retrieval the secret is deleted and cannot be opened again.
After 5 wrong passphrases the secret is destroyed.
Anyone with the link can destroy the secret by guessing wrong; only someone with the passphrase can read it.