AES-256-GCM encrypt and decrypt text with a passphrase — runs in your browser.
Encrypt and decrypt text using AES-256-GCM, the same standard used by governments and banks. Enter a passphrase and your message — the tool derives a key with PBKDF2 (310,000 iterations) and encrypts locally in your browser using the Web Crypto API. The output is a compact base64 string that includes the salt and IV. Nothing is ever sent to any server.
Key derived with PBKDF2 (310,000 iterations) · AES-256-GCM · Random salt + IV per encryption