Secure Note

Private text encryption for email

Runs only in this browser

Compose

Turn a message into
safe-to-send text.

Enter your note and a strong password. The encrypted result can be copied into an email or downloaded as a text file.

16+ characters recommended
0 characters

Your encrypted message will appear here.
Send the password separately.
Use a phone call, SMS, or another channel—not the same email as the encrypted text.

Unlock

Recover the original
message locally.

Paste a Secure Note block and enter the password you received separately.

0 characters

The decrypted message will appear here.
Nothing is uploaded.
Encryption and decryption use the Web Crypto API on this device. Closing the page clears the text.