Encrypt text

Protect a text with a password: it's encrypted with AES-256-GCM (key derived via PBKDF2) right in your browser and turned into a single string you can store or send. Decrypting needs only the string and the password.

Protect a text with a password: it's encrypted with AES-256-GCM (key derived via PBKDF2) right in your browser and turned into a single string you can store or send. Decrypting needs only the string and the password.

How to use

  1. Type the text and a strong passphrase
  2. Click Encrypt and copy the resulting string
  3. To read it back, paste the string, enter the password and click Decrypt

Frequently asked questions

Is my text or password sent to a server?

No. All cryptography runs locally in your browser via the Web Crypto API.

What happens if I forget the password?

The text is unrecoverable — that's the point of strong encryption. There is no reset.

How strong is the encryption?

AES-256-GCM with a key stretched by PBKDF2 (150,000 iterations) — the same building blocks used by password managers.