Google Authenticator is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best open source Windows alternative is Ente Auth. If that doesn't suit you, our users have ranked more than 50 alternatives to Google Authenticator and many of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to Google Authenticator are Proton Authenticator, KeePass, KeeWeb and OneKeePass.
Generates and stores two-factor authentication tokens with device encryption, offers secure cloud backup, multi-device synchronization, offline mode, and import/export through QR, file, or manual input. Migration and restore tools reduce risk of token loss.
Protect your accounts with Proton Authenticator, a private and secure cross-device two-factor authentication (2FA) that works offline. Created by Proton, the creators of Proton Mail, Proton VPN, Proton Drive, and Proton Pass.
Free and open source password manager offering secure local storage of passwords in an encrypted database, strong AES and Twofish encryption, master key or key file access, portable version, plugin support, password generation, and optional two-factor authentication.
Web and desktop password manager compatible with KeePass. Works online in any modern browser or as a desktop app for Windows, macOS, and Linux.
OneKeePass supports the well known KeePass-compatible database (Kdbx 4.x). It stores and manages all your passwords and other sensitive information in a single encrypted file that can be stored in any location, including local and public cloud solutions. You keep?
Authenticator generates two-factor authentication (2FA) codes in your browser. Use it to add an extra layer of security to your online accounts.
Manage all your passwords across all devices. Open Source password manager compatible with kdbx/keepass. Available on Android, iOS, iPadOS, MacOS, Linux and Windows. It can also be used as a cross-platform supported two factor authentication app.
Alternative client for the Bitwarden® platform & KeePass (KDBX), created to provide the best user experience possible.
OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.
2fast (acronym for two factor authenticator supporting TOTP) is the first free, open source, two factor authenticator for Windows and Android with the ability to store the sensitive data encrypted at a place of your choice instead of a 3rd party cloud location.
Secure your online accounts with Open Authenticator : a free, open-source and lovely-crafted TOTP (Time-Based One-Time Password) manager.
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Of course can you use KeePass and apps that utilize kdbx files as a TOTP generator. Just read it up.