Lockr Web
Text encryption that runs entirely in your browser. Nothing is uploaded.
Secure context required (HTTPS or localhost). All crypto uses the Web Crypto API.
Input text
Key mode
Password (derive key)
Raw key (hex or base64)
Cipher
AES-256-GCM (recommended)
AES-256-CBC + HMAC-SHA256
AES-256-CTR + HMAC-SHA256
Password
Key derivation
PBKDF2-SHA256
PBKDF2-SHA512
Iterations
Raw key (32 bytes: 64 hex chars or base64)
Tip: click "Generate key" to create a random 256-bit key.
Associated data (GCM only, optional)
Output encoding
Base64
Base64URL
Hex
Encrypt
Decrypt
Generate key
Copy output
Clear
Output