RSA Encrypt/Decrypt
Generate RSA key pairs and encrypt or decrypt text locally. No data leaves the page.
Public key (PEM)
Private key (PEM)
Plaintext
Ciphertext (Base64)
Key generation and RSA encryption happen locally in your browser. No uploads.
RSA-OAEP + SHA-256
Keys generated with RSA-OAEP (2048-bit, SHA-256). Exported as PEM for reuse.
Private by design
Everything runs in your browser. Keys and messages never leave your device.
Copy or download
Copy keys and ciphertext or download them for safekeeping.