Security · Symmetric crypto

Encrypt and decrypt strings in your browser

Try AES-GCM, AES-CBC, AES-CTR, or RSA-OAEP through the Web Crypto API. Keys never leave your tab.

Runs locallyNo telemetry

Encryption Algorithm

Authenticated encryption, recommended

Encrypt

Plaintext

Encryption Key (64 hex characters)

Decrypt

Encrypted Text (JSON format)

Decryption Key

Security Note: All encryption/decryption is performed locally in your browser. Keys are never sent to any server. Keep your keys secure and never share them.