Text Encryption
betaThis tool encrypts a message with a password using AES-256 (with a key derived via PBKDF2), so only someone who knows the password can read it. Encrypt a note to paste into an email or chat, or decrypt one you received. Everything runs in your browser and the password is never sent anywhere.
Encrypt a message with a password (AES-256) so only someone with the password can read it — then share the scrambled text safely. All in your browser; the password never leaves your device.
How to use Text Encryption
- 1 Choose Encrypt (or Decrypt to reverse it).
- 2 Type or paste your message.
- 3 Enter a password — share it with the recipient through a separate channel.
- 4 Click Encrypt and copy the scrambled text; the recipient pastes it here, enters the password, and clicks Decrypt.
Frequently asked questions
Is my message or password sent anywhere?
No. Encryption and decryption happen entirely in your browser using the Web Crypto API — neither the message nor the password ever leaves your device.
What encryption does it use?
AES-256-GCM with a key derived from your password via PBKDF2 (SHA-256, 150,000 iterations) and a random salt and IV per message.
What happens if I lose the password?
The message cannot be recovered — there is no backdoor. Keep the password safe and share it securely.
How do I share the password?
Send it through a different channel from the encrypted text (e.g. text the password, email the ciphertext) so an interceptor never has both.