Passkey Demo

A session cookie that is useless on any device except the one holding your passkey.

This browser doesn't support passkeys (WebAuthn), or the page isn't served over HTTPS/localhost.

Sign in

Username (optional; leave blank to pick a passkey)

Create account

Username Display name (optional)

Verify it's you

This session was just used from a different browser or network. Anyone can copy a cookie; only the device with your passkey can continue.

This session needs a fresh passkey confirmation before showing anything.

Signed in as

Username
Email
Passkeys
Active sessions
Proof freshness

Protected content

Needs a passkey proof from the last few minutes, from this device.

Sensitive action

Always asks for a new passkey tap. One tap authorizes one change.

Add a passkey

Register another device (e.g. your phone) to this account.

Request log

Confirm with your passkey