The higher your security level, the more secure your secret will be, but it will take longer to encrypt and decrypt.
If you plan on encrypting or decrypting your secret on a low-power device, choose a lower security level.

After the storage duration has passed, your secret will be deleted automatically. Additionally, your secret will be immediately deleted after it has been accessed.

To prevent automated spam we currently use a captcha.

By uploading your secret you agree to our Terms of Service and Privacy Policy.

Securely share secrets

LockBox is a secure, end-to-end encrypted secret sharing service. It allows you to securely share secrets with other people, without having to worry about your data being compromised.

How it works

When you share a secret, the data is encrypted directly on your device, meaning it never leaves your device unencrypted. The encrypted data is then securely stored on our server. The recipient can access the secret by entering the password and decrypting the data on their device. After the secret has been decrypted, it is deleted from our server and can no longer be accessed.


LockBox is open-source and available on GitHub. Feel free to check out the code and contribute or to host your own server if you want to be in full control of your data.