Security

Openonce is designed around one simple idea: the safest secret is the one that does not exist anymore.

Encryption

Secrets are encrypted before being stored. The encryption key is never exposed to the user interface.

One-time access

Each link can only be opened once. After access, the encrypted data is immediately deleted from storage.

No accounts, no tracking

Openonce does not require user accounts and does not track visitors. There are no profiles, no analytics, and no behavioral logging.

No history

Secrets are not retrievable. If a link is opened or expires, the data is gone permanently.

Simple design, minimal attack surface, transparent behavior.