Secretshare

Encrypting in this browser

Send a password once.
Then it's gone.

Draft · no. 0000-0000

0 characters — encrypted locally before upload

Destruction and access
Human confirmation is always required Slack, Discord and Teams generate link previews. Preview requests can inspect availability but cannot consume the encrypted payload.

What your teammate opens

One page, one button, no account. A shared link opens this confirmation gate.

Secretshare

Open a generated link to receive an encrypted secret.

A bot preview can't press this.

How SecretShare works

Encryption

The browser generates a 256-bit key and encrypts text or file bytes with authenticated AES-GCM before sending ciphertext.

The key

The link places the key after #. Browsers do not include URL fragments in HTTP requests, keeping the key separate from stored ciphertext.

Bot defense

A non-consuming landing request protects secrets from chat preview fetches. Only an explicit POST from the Open and destroy button consumes a secret.

Files

Files up to 5 MB are read and encrypted locally. Their name, media type, and contents are all inside the encrypted payload.

Deletion

The backend claims a stored record with an atomic rename before returning it, so concurrent opens cannot both retrieve the same ciphertext. Expired records cannot be consumed.

Stop pasting credentials into Slack.

Send one now