Clockwork

TOTP authenticator that runs entirely in your browser with zero network requests.

Webfreeglobal

Clockwork is a TOTP two-factor authenticator that runs entirely in the browser, computing codes locally from RFC 4226/6238 implemented from scratch with no OTP library, no network requests and nothing stored by default. It targets people who want two-factor codes generated privately without installing a dedicated app or trusting a cloud-synced authenticator.

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