SSH Key Generator

This free SSH key generator creates a key pair right in your browser and gives you the OpenSSH-format public key (ready to paste intoauthorized_keys or a Git host) and the matching private key. Ed25519 is the recommended default — it's fast, compact, and secure; RSA (2048–4096 bit) is offered for compatibility with older systems, where larger sizes are stronger but slower to generate. Ed25519 keys are emitted in the modernopenssh-key-v1 format and RSA keys as a PEM private key. Because everything is created locally with an in-page crypto engine, your private key is never transmitted anywhere — but always store it securely.