Paper — one-view encrypted note transmitter
»Compose & Seal
Type the payload below. The browser seals it locally with a key that never reaches the server. Anyone with the full URL can decrypt it exactly once — after that the ciphertext is destroyed.
Transmission ready
RECEIVED
Single use — anyone with this URL can read the note once.
»Sealed Transmission
The server holds an encrypted blob for this file. Press reveal and the server destroys its copy before handing the ciphertext back to this browser to be decoded with the key in your URL.