SSH Key Generator

Generate Ed25519, RSA or ECDSA SSH keys — optionally passphrase-encrypted — entirely in your browser. Nothing is sent to any server.

Algorithm

DSA is intentionally omitted — OpenSSH removed it from the defaults in 7.0 and disabled it for auth in 8.7.

Comment (optional, shown at the end of the public key)

Passphrase (optional — encrypts the private key)

Generated with crypto.subtle.generateKey — Chrome 112+, Safari 17+, Firefox 129+.
Private key exists only in this tab's memory until you copy or download it.
Output is standard OpenSSH format — works withssh, Git, GitHub, VPS providers.