Whisprlink: Secrets That Burn After Reading

Field notes

The workflow combines a text box, four expiry choices, and a burn-after-reading control before producing a copyable link. The page says encryption occurs through the browser's WebCrypto API using AES-256-GCM, with a random 256-bit key placed after the URL fragment rather than transmitted to the server. It also warns that link sharing itself remains observable, distinguishing protection of the secret from protection of the surrounding communication.