AES Encrypt / Decrypt
AES-GCM symmetric encryption with passphrase. PBKDF2-derived 256-bit key. Output is self-contained Base64 — paste back to decrypt. Free, private, browser-only.
Show passphrase
AES-GCM with PBKDF2-derived key (200k iterations, SHA-256, random salt + IV). Passphrase and plaintext stay in this tab — nothing is uploaded.