How to Encrypt with AES Online? Passphrase Tips
How CryptoJS passphrase AES works in the browser, and when not to rely on it alone.
This tool uses CryptoJS passphrase-derived keys; ciphertext is usually Base64 for easy copy/paste.
Passphrase crypto is fine for casual text protection — serious secrets need proper key management.
Everything runs locally; passphrase and plaintext are never uploaded.
If decrypt fails, check algorithm, passphrase, and that the ciphertext is complete.