Key Pair Generator

RSA and elliptic-curve key pairs in PEM format, generated by your browser. Good for testing, learning and development — see the note about production keys.

Public key

Safe to share. This is what you give to other people or paste into a server.

Private key

Never share this. Anyone holding it can impersonate you completely.

Public key fingerprint

SHA-256 of the public key. Use it to confirm two people are looking at the same key.

Generate

Key type Elliptic curve keys are far smaller and faster for the same security.

Keys are generated by your browser's cryptography engine and never transmitted.

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