AES Encryption

Encrypt and decrypt text with AES-256-GCM. Everything runs locally in your browser — nothing is sent anywhere.

Key size

PBKDF2 iterations

Passphrase

Plain text

Cipher text (base64)

Uses AES-GCM (authenticated encryption) with a key derived from your passphrase via PBKDF2 (SHA-256). A random salt and IV are generated per encryption and stored alongside the ciphertext, so the same input never produces the same output twice. All computation happens in your browser via the Web Crypto API — your passphrase and text are never transmitted.