Designed for everyday sharing
Use it when a password, access code or other private text must reach another person without living permanently in the message history.
Fewer permanent copies
Why openonce.se
Sensitive information is often shared through channels that were not designed to keep it temporary. Openonce reduces exposure by making the secret disposable.
Less exposure, fewer copies, better defaults.
Chat or email
The message may remain searchable.
One-time link
The stored secret disappears after opening.
Permanent copy
Sensitive text stays in the conversation.
Limited lifetime
The link expires automatically if unused.
Shared context
The secret appears beside the discussion.
Separate content
Only the temporary link is sent.
A practical risk reduction
Openonce does not promise perfect security. It reduces unnecessary exposure by limiting access and removing stored content after use.
Share the link, not the secret
Create a temporary one-time link without an account.