About this tool
Encrypt or decrypt text locally in your browser with AES-GCM, deriving the key from your passphrase via PBKDF2.
Frequently asked questions
How is the key derived?
A 256-bit AES-GCM key is derived from your passphrase using PBKDF2 with 100,000 iterations and a random salt.
What does the output contain?
The Base64 output bundles the random salt, the random IV and the ciphertext, so decryption needs only that text plus the passphrase.