JavaScript 2 Factor Authenticator
FreeA single web page that uses local JavaScript to calculate time-based one-time password (TOTP) codes for two-factor authentication, and works offline. It acts as a browser-based alternative to authenticator apps like Google Authenticator for users who want to generate 2FA codes without a phone app or sending secrets to any server.
How to install JavaScript 2 Factor Authenticator as a PWA
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