Why openonce.se

Sensitive information is often shared through channels that were never designed to be secure.

Chat apps, emails, and screenshots create permanent copies. Even if the message is deleted, the secret often lives on.

Openonce reduces exposure by making secrets disposable. If the link is never opened, the secret remains unread. If it is opened, it disappears.

Designed for real-world sharing

Openonce is not about perfect security. It is about reducing risk in everyday situations where secrets must be shared.

Less exposure, fewer copies, better defaults.