How it works

Openonce lets you share sensitive information using a link that can only be opened once. After the secret is viewed, it is permanently destroyed.

1. Create a secret

You write your secret in the form on the homepage. This can be a password, API key, recovery code, or any other sensitive text.

2. Get a one-time link

A unique, unguessable link is generated. This link can be shared securely through chat, email, or any other channel.

3. Opened once — then gone

When the link is opened, the secret is shown exactly one time. Immediately after, the data is deleted and can never be accessed again.

No accounts, no history, no second chances.